Effects of Interference on Wireless Mesh Networks: Pathologies and a Preliminary Solution (2009)
Yi Li, Lili Qiu, Yin Zhang, Ratul Mahajan, Zifei Zhong, Gaurav Deshpande, ...
Abstract – We highlight two fundamental problems that degrade the throughput of wireless mesh networks today. First, severe performance degradation can occur when sources send more traffic than...
ER: Efficient Retransmission Scheme for Wireless LANs ∗ ABSTRACT (2008)
Eric Rozner, Padmanabha Iyer, Yogita Mehta, Lili Qiu, Mansoor Jafry
Wireless LANs (WLANs) have been deployed at a remarkable rate at university campuses, office buildings, airports, hotels, and malls. Providing efficient and reliable wireless communications is...
Optimizing the Placement of Internet TAPs in Wireless Neighborhood Networks (2008)
Ranveer Ch, Lili Qiu, Kamal Jain, Mohammad Mahdian
Efficient integration of a multi-hop wireless network with the Internet is an important research problem. In a wireless neighborhood network, a few Internet Transit Access Points (ITAPs), serving as...
Greedy Receivers in IEEE 802.11 Hotspots (2008)
Mi Kyung Han, Brian Overstreet, Lili Qiu
As wireless hotspot business becomes a tremendous financial success, users of these networks have increasing motives to misbehave in order to obtain more bandwidth at the expense of other users. Such...
MobiCom Poster Abstract: Traffic-Aware Channel Assignment in Wireless LANs (2008)
Eric Rozner, Yogita Mehta, Aditya Akella, Lili Qiu
Campus and enterprise wireless networks are increasingly characterized by ubiquitous coverage and high traffic demands. An efficient channel assignment of access points (APs) in these networks has...
Effects of Interference on Wireless Mesh Networks: Pathologies and a Preliminary Solution (2008)
Yi Li, Lili Qiu, Yin Zhang, Ratul Mahajan, Zifei Zhong, Gaurav Deshpande, ...
Abstract – We highlight two fundamental problems that degrade the throughput of wireless mesh networks today. First, severe performance degradation can occur when sources send more traffic than...
Submission track: DCCS Greedy Receivers in IEEE 802.11 Hotspots (2008)
Mi Kyung Han, Brian Overstreet, Lili Qiu, Mi Kyung Han, Brian Overstreet, Lili Qiu
As wireless hot-spot business becomes a tremendous financial success, users of these networks have increasing motives to misbehave in order to obtain more bandwidth at the expense of other users....
Troubleshooting Wireless Mesh Networks (2008)
Lili Qiu, Paramvir Bahl, Ananth Rao, Lidong Zhou
Effective network troubleshooting is critical for maintaining efficient and reliable network operation. Troubleshooting is especially challenging in multi-hop wireless networks because the behavior...
Clustering Web Content for Efficient Replication Abstract (2008)
Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. In this paper, we first compare the un-cooperative...
MobiCom Poster Abstract: Traffic-Aware Channel Assignment in Wireless LANs (2008)
Eric Rozner, Yogita Mehta, Aditya Akella, Lili Qiu
Campus and enterprise wireless networks are increasingly characterized by ubiquitous coverage and high traffic demands. An efficient channel assignment of access points (APs) in these networks has...
ABSTRACT COPE: Traffic Engineering in Dynamic Networks (2008)
Hao Wang, Haiyong Xie, Lili Qiu, Yang Richard, Yang Yin, Zhang Albert Greenberg
Traffic engineering plays a critical role in determining the performance and reliability of a network. A major challenge in traffic engineering is how to cope with dynamic and unpredictable changes...
Effects of Interference on Wireless Mesh Networks: Pathologies and a Preliminary Solution (2008)
Yi Li, Lili Qiu, Yin Zhang, Ratul Mahajan, Zifei Zhong, Gaurav Deshpande, ...
Abstract – We highlight two fundamental problems that degrade the throughput of wireless mesh networks today. First, severe performance degradation can occur when sources send more traffic than...
ABSTRACT COPE: Traffic Engineering in Dynamic Networks (2008)
Hao Wang, Haiyong Xie, Lili Qiu, Yang Richard, Yang Yin, Zhang Albert Greenberg
Traffic engineering plays a critical role in determining the performance and reliability of a network. A major challenge in traffic engineering is how to cope with dynamic and unpredictable changes...
ER: Efficient Retransmission Scheme for Wireless LANs ∗ ABSTRACT (2008)
Eric Rozner, Padmanabha Iyer, Yogita Mehta, Lili Qiu, Mansoor Jafry
Wireless LANs (WLANs) have been deployed at a remarkable rate at university campuses, office buildings, airports, hotels, and malls. Providing efficient and reliable wireless communications is...
Effects of Interference on Wireless Mesh Networks: Pathologies and a Preliminary Solution (2008)
Yi Li, Lili Qiu, Yin Zhang, Ratul Mahajan, Zifei Zhong, Gaurav Deshpande, ...
Abstract – We highlight two fundamental problems that degrade the throughput of wireless mesh networks today. First, severe performance degradation can occur when sources send more traffic than...
Optimizing the Placement of Internet TAPs in Wireless Neighborhood Networks (2008)
Ranveer Ch, Ra Ý, Lili Qiu, Kamal Jain, Mohammad Mahdian
Efficient integration of a multi-hop wireless network with the Internet is an important research problem. In a wireless neighborhood network, a few Internet Transit Access Points (ITAPs), serving as...
ABSTRACT Troubleshooting Wireless Mesh Networks (2008)
Lili Qiu, Paramvir Bahl, Ananth Rao, Lidong Zhou
Effective network troubleshooting is critical for maintaining efficient and reliable network operation. Troubleshooting is especially challenging in multi-hop wireless networks because the behavior...
Kamal Jain, Jitendra Padhye, Venkat Padmanabhan, Lili Qiu
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ABSTRACT COPE: Traffic Engineering in Dynamic Networks (2008)
Hao Wang, Haiyong Xie, Lili Qiu, Yang Richard, Yang Yin, Zhang Albert Greenberg
Traffic engineering plays a critical role in determining the performance and reliability of a network. A major challenge in traffic engineering is how to cope with dynamic and unpredictable changes...
SmartTunnel: A Multipath Approach to Achieving Reliability in the Internet (2008)
Yi Li, Yin Zhang, Lili Qiu, Simon Lam
Abstract — Reliability is critical to a variety of network applications. Unfortunately, due to lack of QoS support across ISP boundaries, it is difficult to achieve even two 9s (99%) reliability in...
Analyzing the Browse Patterns of Mobile Clients Abstract— (2008)
Atul Adya, Paramvir Bahl, Lili Qiu
We study the dynamics of a large popular commercial Web site designed specifically for users who access it via their cellphones and PDAs. Unlike most previous Web studies that have analyzed accesses...
Kamal Jain, Jitendra Padhye, Venkata N. Padmanabhan, Lili Qiu
fkamalj, padhye, padmanab, liliqg@microsoft.com ABSTRACT In this paper, we address the following question: given a specific placement of wireless nodes in physical space and a specific traffic...
Optimizing the Placement of Integration Points in Multi-hop Wireless Networks (2008)
Ranveer Chandra, Lili Qiu, Kamal Jain, Mohammad Mahdian
Efficient integration of a multi-hop wireless network with the Internet is an important research problem. In a wireless neighborhood network, a few Internet Transit Access Points (ITAPs), serving as...
URA: A Universal Data Replication Architecture (2008)
Jiandan Zheng, Mike Dahlin Supervisor, Lorenzo Alvisi, James C. Browne, Arun Iyengar, Lili Qiu, ...
Dedicated to my beloved husband, my caring parents, and my wonderful brothers. Acknowledgments Thanks to Mike Dahlin, my research adviser, who offered me the opportunity to work in the LASR lab with...
1 Understanding the End-to-End Performance Impact of RED in a Heterogeneous Environment (2007)
Abstract--- Random Early Detection (RED) is the recommended active queue management scheme for rapid deployment throughout the Internet. As a result, there have been considerable research efforts in...
Lili Qiu, Yin Zhang, Srinivasan Keshav
As the most widely used reliable transport in today's Internet, TCP has been extensively studied in the past decade. However, previous research usually only considers a small or medium number of...
Overlay Node Placement: Analysis, Algorithms and Impact on Applications (2007)
Roy, Sabyasachi, Pucha, Himabindu, Zhang, Zheng, Hu, Y. Charlie, Qiu, Lili
Overlay routing has emerged as a promising approach to improving performance and reliability of Internet paths. To fully realize the potential of overlay routing under the constraints of deployment...
S4: Small State and Small Stretch Routing Protocol for Large Wireless Sensor Networks (2007)
Yun Mao, Feng Wang, Lili Qiu, Simon S. Lam, Jonathan M. Smith
Routing protocols for wireless sensor networks must address the challenges of reliable packet delivery at increasingly large scale and highly constrained node resources. Attempts to limit node state...
Traffic-aware channel assignment in enterprise wireless networks (2007)
Eric Rozner, Yogita Mehta, Aditya Akella, Lili Qiu
Abstract — Campus and enterprise wireless networks are increasingly characterized by ubiquitous coverage and rising traffic demands. Efficiently assigning channels to access points (APs) in these...
S4: Small State and Small Stretch Routing Protocol for Large Wireless Sensor Networks (2007)
Yun Mao, Feng Wang, Lili Qiu, Simon S. Lam, Jonathan M. Smith
Routing protocols for wireless sensor networks must address the challenges of reliable packet delivery at increasingly large scale and highly constrained node resources. Attempts to limit node state...
SmartTunnel: Achieving reliability in the internet (2007)
Yi Li, Yin Zhang, Lili Qiu, Simon Lam
Abstract — Reliability is critical to a variety of network applications. Unfortunately, due to lack of QoS support across ISP boundaries, it is difficult to achieve even two 9s (99%) reliability in...
SmartTunnel: Achieving reliability in the internet (2007)
Yi Li, Yin Zhang, Lili Qiu, Simon Lam
Abstract — Reliability is critical to a variety of network applications. Unfortunately, due to lack of QoS support across ISP boundaries, it is difficult to achieve even two 9s (99%) reliability in...
On Multihop Wireless Network Management: Measurement, Modeling and Control (2007)
Feng Wang, Simon S. Lam, Lili Qiu Supervisor, Mohamed G. Gouda, Aloysius K. Mok, Yongguang Zhang, ...
To my grandmother, my parents, and my dear wife Xiaoli Acknowledgments I am thankful to many people during my doctoral study. They have helped me in many different ways. Of these people, my special...
Gustavo De Veciana, Sanjay Shakkottai, Lili Qiu, Sriram Vishwanath
program at the Wireless Networking and Communications Group (WNCG) at the University
S4: Small State and Small Stretch Routing Protocol for Large Wireless Sensor Networks (2007)
Yun Mao, Feng Wang, Lili Qiu, Simon S. Lam, Jonathan M. Smith
Routing protocols for wireless sensor networks must address the challenges of reliable packet delivery at increasingly large scales and with highly constrained node resources. Attempts to reduce...
Traffic-aware channel assignment in enterprise wireless networks (2007)
Eric Rozner, Yogita Mehta, Aditya Akella, Lili Qiu
Abstract—Campus and enterprise wireless networks are increasingly characterized by ubiquitous coverage and rising traffic demands. Efficiently assigning channels to access points (APs) in these...
Overlay node placement: Analysis, algorithms and impact on applications (2007)
Sabyasachi Roy, Himabindu Pucha, Zheng Zhang, Y. Charlie Hu, Lili Qiu
Abstract — Overlay routing has emerged as a promising approach to improving performance and reliability of Internet paths. To fully realize the potential of overlay routing under the constraints of...
Overlay node placement: Analysis, algorithms and impact on applications (2007)
Sabyasachi Roy, Himabindu Pucha, Zheng Zhang, Y. Charlie Hu, Lili Qiu
Abstract — Overlay routing has emerged as a promising approach to improving performance and reliability of Internet paths. To fully realize the potential of overlay routing under the constraints of...
Design and Analysis of Self-Stabilizing Sensor Network Protocols (2007)
Young-ri Choi, Mohamed G. Gouda, Simon S. Lam, Aloysius K. Mok, Lili Qiu, Anish Arora, ...
Dedicated to my husband and my parents.
Reconfigurable resource scheduling (2006)
Yu Sun, Greg Plaxton Supervisor, Sanjoy Baruah, Aloysius Mok, Lili Qiu, Harrick Vin
To my parents
A Theory for the Design and Analysis of Firewalls (2006)
Mohamed G. Gouda, Adnan Aziz, Benjamin Kuipers, Simon S. Lam, Charles Gregory Plaxton, ...
Dedicated with love and respect to my parents Shuxiang Wang and Yuhai Liu (God rest his soul), to my family Huibo Heidi Ma, Max Boyang and Louis Boyang, to whom I owe all that I am and all that I...
Han Hee Song, Han Hee Song, Han Hee Song, Han Hee Song, Supervisors Yin Zhang, Lili Qiu
To my family
Reconfigurable resource scheduling (2006)
Yu Sun, Greg Plaxton Supervisor, Sanjoy Baruah, Aloysius Mok, Lili Qiu, Harrick Vin
To my parents
TrafficAware Channel Assignment in Wireless LANs (2006)
Eric Rozner, Yogita Mehta, Aditya Akellaý, Lili Qiu
Abstract — Campus and enterprise wireless networks are increasingly characterized by ubiquitous coverage and rising traffic demands. Efficiently assigning channels to access points (APs) in these...
Seung Jun Baek, Gustavo De Veciana, Aristotle Arapostathis, Ross Baldick, Lili Qiu, Sanjay Shakkottai, ...
First of all I cannot express enough gratitude for my Advisor Gustavo de Veciana. He would always set standards higher, and I would find myself improved simply by seeking to meet his expectations. I...
Troubleshooting multihop wireless networks (2005)
Lili Qiu, Paramvir Bahl, Ananth Rao, Lidong Zhou
Effective network troubleshooting is critical for maintaining efficient and reliable network operation. Troubleshooting is especially challenging in multihop wireless networks because the behavior of...
Estimation of Link Interference in Static Multi-hop Wireless Networks (2005)
Jitendra Padhye Sharad, Sharad Agarwal, Venkata N. Padmanabhan, Lili Qiu, Ananth Rao, Brian Zill
this paper, we study the phenomenon of interference among links in a 22-node IEEE 802.11 a/b/g based indoor wireless testbed. The paper makes two contributions. First, we show that the simple...
Estimation of link interference in static multi-hop wireless networks (2005)
Jitendra Padhye, Sharad Agarwal, Venkata N. Padmanabhan, Lili Qiu, Ananth Rao, Brian Zill
We present a measurement-based study of interference among links in a static, IEEE 802.11, multi-hop wireless network. Interference is a key cause of performance degradation in such networks. To...
Troubleshooting multihop wireless networks (2005)
Lili Qiu, Paramvir Bahl, Ananth Rao, Lidong Zhou
Effective network troubleshooting is critical for maintaining efficient and reliable network operation. Troubleshooting is especially challenging in multi-hop wireless networks because the behavior...
Summary-based Routing for Content-based Event Distribution Networks (2004)
Yi-min Wang, Lili Qiu, Chad Verbowski, Dimitris Achlioptas, Gautam Das, Paul Larson
Abstract — Providing scalable distributed Web-based eventing services has been an important research topic. It is desirable to have an effective mechanism for the servers to summarize their filters...
Haiyong Xie, Lili Qiu, Yang Richard Yang, Yin Zhang
Recently we have seen an emergent trend of self adaptive routing in both Internet and wireless ad hoc networks. Although there are previous methods for computing the traffic equilibria of self...
Multihoming: Algorithm Design and Implication Analysis (2004)
Hao Wang, Avi Silberschatz, Haiyong Xie, Lili Qiu, Yang Richard Yang, Hao Wang, ...
Multihoming is a popular method used by large enterprises and stub ISPs to connect to the Internet to reduce cost and improve performance. Recently researchers have studied the potential benefits of...
Cell breathing in wireless lan: Algorithms and evaluation (2004)
Paramvir (victor Bahl, Senior Member, Ieee Computer Society, Mohammad T. Hajiaghayi, Kamal Jain, Sayyed Vahab Mirrokni, ...
Abstract—Wireless LAN administrators often have to deal with the problem of sporadic client congestion in popular locations within the network. Existing approaches that relieve congestion by...
Optimizing the placement of integration points in multi-hop wireless networks (2004)
Lili Qiu, Ranveer Ch, Kamal Jain, Mohammad Mahdian
Efficient integration of a multi-hop wireless network with the Internet is an important research problem, and benefits several applications, such as wireless neighborhood networks and sensor...
Haiyong Xie, Lili Qiu, Yang Richard Yang, Yin Zhang
Recently we have seen an emergent trend of self adaptive routing in both Internet and wireless ad hoc networks. Although there are previous methods for computing the traffic equilibria of self...
Cell Breathing in Wireless LANs: Algorithms and Evaluation (2004)
Paramvir Bahl, Mohammad T. Hajiaghayi, Kamal Jain, Vahab Mirrokni, Lili Qiu, Amin Saberi
Abstract — Wireless LAN administrators often have to deal with the problem of sporadic client congestion in popular locations within the network. Existing approaches that relieve congestion by...
On Selfish Routing in Internet-Like Environments (2003)
Lili Qiu, Yang Richard Yang, Yin Zhang, Scott Shenker
Abstract — A recent trend in routing research is to avoid inefficiencies in network-level routing by allowing hosts to either choose routes themselves (e.g., source routing) or use overlay routing...
On Selfish Routing in Internet-Like Environments (2003)
Lili Qiu, Yang Richard, Yang Yin, Zhang Scott Shenker
Abstract — A recent trend in routing research is to avoid inefficiencies in network-level routing by allowing hosts to either choose routes themselves (e.g., source routing) or use overlay routing...
Server-based inference of internet performance (2003)
Venkata N. Padmanabhan, Venkata N. Padmanabhan, Lili Qiu, Lili Qiu, Helen J. Wang, Helen J. Wang
We investigate the problem of inferring the packet loss characteristics of Internet links using server-based measurements. Unlike much of existing work on network tomography that is based on active...
Impact of interference on multi-hop wireless network performance (2003)
Kamal Jain, Jitendra Padhye, Venkata N. Padmanabhan, Lili Qiu
On Selfish Routing in Internet-Like Environments (2003)
Lili Qiu, Yang Richard Yang, Yin Zhang, Scott Shenker
Abstract—A recent trend in routing research is to avoid inefficiencies in network-level routing by allowing hosts to either choose routes themselves (e.g., source routing) or use overlay routing...
On Selfish Routing in Internet-Like Environments (2003)
Lili Qiu, Yang Richard, Yang Yin, Zhang Scott Shenker
A recent trend in routing research is to avoid inefficiencies in networklevel routing by allowing hosts to either choose routes themselves (e.g., source routing) or use overlay routing networks...
Server-based inference of Internet link lossiness (2003)
Venkata N. Padmanabhan, Lili Qiu, Helen J. Wang
We investigate the problem of inferring the packet loss characteristics of Internet links using server-based measurements. Unlike much of existing work on network tomography that is based on active...
Impact of interference on multi-hop wireless network performance (2003)
Kamal Jain, Jitendra Padhye, Venkata N. Padmanabhan, Lili Qiu
Ö�Ò�ÓÑÒ�××�ÒØ��Ò�ØÛÓÖ�ØÓÔÓÐÓ�Ý�Ò�ÓÖÛÓÖ�ÐÓ��Û �...
On Selfish Routing in Internet-Like Environments (2003)
Lili Qiu, Yang Richard, Yang Yin, Zhang Scott Shenker
Abstract — A recent trend in routing research is to avoid inefficiencies in network-level routing by allowing hosts to either choose routes themselves (e.g., source routing) or use overlay routing...
Efficient and adaptive web replication using content clustering (2003)
Yan Chen, Lili Qiu, Weiyu Chen, Luan Nguyen, Y H. Katz
Abstract--- Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. In this paper, we first compare the...
On Selfish Routing in Internet-Like Environments (2003)
Lili Qiu, Yang Richard Yang, Yin Zhang, Yang Yin, Scott Shenker
A recent trend in routing research is to avoid inefficiencies in networklevel routing by allowing hosts to either choose routes themselves (e.g., source routing) or use overlay routing networks...
On Selfish Routing in Internet-Like Environments (2003)
Lili Qiu, Yang Richard, Yang Yin, Zhang Scott Shenker
A recent trend in routing research is to avoid inefficiencies in networklevel routing by allowing hosts to either choose routes themselves (e.g., source routing) or use overlay routing networks...
Server-based inference of internet performance (2003)
Venkata N. Padmanabhan, Lili Qiu, Helen J. Wang
We investigate the problem of inferring the packet loss characteristics of Internet links using server-based measurements. Unlike much of existing work on network tomography that is based on active...
Server-based inference of Internet link lossiness (2003)
Venkata N. Padmanabhan, Lili Qiu, Helen J. Wang
We investigate the problem of inferring the packet loss characteristics of Internet links using server-based measurements. Unlike much of existing work on network tomography that is based on active...
Server-based Inference of Internet Link Lossiness (2003)
Venkata N. Padmanabhan, Lili Qiu, Helen J. Wang
We investigate the problem of inferring the packet loss characteristics of Internet links using server-based measurements. Unlike much of existing work on network tomography that is based on active...
Impact of Interference on Multi-hop Wireless Network Performance (2003)
Kamal Jain, Jitendra Padhye, Venkat Padmanabhan, Lili Qiu
In this paper, we address the following question: given a speci c placement of wireless nodes in physical space and a speci c trac workload, what is the maximum throughput that can be supported by...
Passive network tomography using bayesian inference (2002)
Venkata N. Padmanabhan, Lili Qiu, Helen J. Wang
In this paper, we investigate the problem of identifying lossy links in the interior of the Internet by passively observing the end-to-end performance of existing traffic between a server and its...
Statistical identification of encrypted web browsing traffic (2002)
Qixiang Sun, Daniel R. Simon, Yi-Min Wang, Wilf Russell, Venkata N. Padmanabhan, Lili Qiu
Encryption is often proposed as a tool for protecting the privacy of World Wide Web browsing. However, encryption-particularly as typically implemented in, or in concert with popular Web...
Fast firewall implementations for software-based and hardware-based routers (2001)
Routers must perform packet classi cation at high speeds to e ciently implement functions such as rewalls. The classi-cation can be based on an arbitrary number of pre x and range elds in the packet...
On the Placement of Web Server Replicas (2001)
Lili Qiu, Venkata N. Padmanabhan, Geoffrey M. Voelker
Abstract—Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed...
Fast Firewall Implementations for Software and Hardware-based Routers (2001)
Lili Qiu, George Varghese, Subhash Suri
Routers must perform packet classification at high speeds to efficiently implement functions such as firewalls and diffserv. Classification can be based on an arbitrary number of fields in the packet...
Lili Qiu, Venkata N. Padmanabhan
In this paper, we present a study of wide-area Internet performance as observed from a busy Internet server site. We explore the question of predicting the network performance that a client would...
Understanding the performance of many tcp flows (2001)
Lili Qiu, Yin Zhang, Srinivasan Keshav
As the most widely used reliable transport in today’s Internet, TCP has been extensively studied in the past decade. However, previous research usually only considers a small or medium number of...
Understanding the performance of many tcp flows (2001)
Lili Qiu, Yin Zhang, Srinivasan Keshav
As the most widely used reliable transport in today’s Internet, TCP has been extensively studied in the past decade. However, previous research usually only considers a small or medium number of...
On the Placement of Web Server Replicas (2001)
Lili Qiu, Venkata N. Padmanabhan, Geoffrey M. Voelker
Abstract—Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed...
On the Placement of Web Server Replicas (2001)
Lili Qiu, Venkata N. Padmanabhan, Geoffrey M. Voelker
Abstract—Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed...
Analyzing Browse Patterns of Mobile Clients (2001)
Atul Adya, Paramvir Bahl, Lili Qiu
We study the dynamics of a large popular commercial Web site designed specifically for users who access it via their cellphones and PDAs. Unlike most previous Web studies that have analyzed accesses...
On the Placement of Web Server Replicas (2001)
Lili Qiu, Venkata N. Padmanabhan, Geoffrey M. Voelker
Abstract---Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed...
On the Placement of Web Server Replicas (2001)
Lili Qiu, Venkata N. Padmanabhan, Geoffrey M. Voelker
Abstract—Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed...
On the Placement of Web Server Replicas (2001)
Lili Qiu, Venkata N. Padmanabhan, Geoffrey M. Voelker
Abstract—Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed...
Fast Firewall Implementations for Software and Hardware-based Routers (2001)
Lili Qiu, George Varghese, Subhash Suri
Routers must perform packet classification at high speeds to efficiently implement functions such as firewalls and diffserv. Classification can be based on an arbitrary number of fields in the packet...
Fast Firewall Implementations for Software-based Routers (2000)
Qiu, Lili, Varghese, George, Subash, Suri
Routers must perform packet classification at high speeds to efficiently implement functions such as firewalls. The classification can be based on an arbitrary number of prefix and range fields in...
Fast Firewall Implementations for Software-based Routers (2000)
Qiu, Lili, Varghese, George, Subash, Suri
Routers must perform packet classification at high speeds to efficiently implement functions such as firewalls. The classification can be based on an arbitrary number of prefix and range fields in...
Speeding Up Short Data Transfers: Theory, Architectural Support, andSimulation Results (2000)
Zhang, Yin, Qiu, Lili, Srinivasan, Keshav
Today's Internet traffic is dominated by short Web data transfers. Such a workload is well known to interact poorly with the TCP protocol. TCP uses the slow start procedure to probe the network for...
Understanding the End-to-End Performance Impact of RED in aHeterogeneous Environment (2000)
Random Early Detection (RED) is the recommended active queue management scheme for rapid deployment throughout the Internet. As a result, there have been considerable research efforts in studying the...
On the Placement of Web Server Replicas (2000)
Qiu, Lili, Voelker, M. Geoffrey
Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed throughout the...
Speeding Up Short Data Transfers: Theory, Architectural Support, andSimulation Results (2000)
Zhang, Yin, Qiu, Lili, Srinivasan, Keshav
Today's Internet traffic is dominated by short Web data transfers. Such a workload is well known to interact poorly with the TCP protocol. TCP uses the slow start procedure to probe the network for...
Understanding the End-to-End Performance Impact of RED in aHeterogeneous Environment (2000)
Random Early Detection (RED) is the recommended active queue management scheme for rapid deployment throughout the Internet. As a result, there have been considerable research efforts in studying the...
On the Placement of Web Server Replicas (2000)
Qiu, Lili, Voelker, M. Geoffrey
Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. CDNs deploy a set of servers distributed throughout the...
Integrating Packet FEC into Adaptive Voice Playout Buffer Algorithms on the Internet (2000)
Jonathan Rosenberg, Lili Qiu, Henning Schulzrinne
Abstract—Transport of real-time voice traffic on the Internet is difficult due to packet loss and jitter. Packet loss is handled primarily through a variety of different forward error correction...
Speeding Up Short Data Transfers: Theory, Architecture Support, and Simulation Results (2000)
Yin Zhang, Lili Qiu, Srinivasan Keshav, Ensim Corporation
Today's Internet traffic is dominated by short Web data transfers. Such a workload is well known to interact poorly with the TCP protocol. TCP uses the slow start procedure to probe the network...
The Content and Access Dynamics of a Busy Web Site: Findings and Implications (2000)
Venkata N. Padmanabhan, Lili Qiu
In this paper, we study the dynamics of the MSNBC news site, one of the busiest Web sites in the Internet today. Unlike many other efforts that have analyzed client accesses as seen by proxies, we...
The Content and Access Dynamics of a Busy Web Site: Findings and Implications (2000)
Venkata N. Padmanabhan, Lili Qiu
In this paper, we study the dynamics of the MSNBC news site, one of the busiest Web sites in the Internet today. Unlike many other efforts that have analyzed client accesses as seen by proxies, we...
The Content and Access Dynamics of a Busy Web Site: Findings and Implications (2000)
Venkata Padmanabhan Microsoft, Venkata N. Padmanabhan, Lili Qiu
In this paper, we study the dynamics of the MSNBC news site, one of the busiest Web sites in the Internet today. Unlike many other efforts that have analyzed client accesses as seen by proxies, we...
Speeding Up Short Data Transfers: Theory, Architectural Support, and Simulation Results (2000)
Yin Zhang, Lili Qiu, Srinivasan Keshav, Ensim Corporation
Today's Internet traffic is dominated by short Web data transfers. Such a workload is well known to interact poorly with the TCP protocol. TCP uses the slow start procedure to probe the network...
Integrating Packet FEC into Adaptive Voice Playout Buffer Algorithms on the Internet (2000)
Jonathan Rosenberg, Lili Qiu, Henning Schulzrinne
Transport of real-time voice traffic on the Internet is difficult due to packet loss and jitter. Packet loss is handled primarily through a variety of different forward error correction (FEC)...
The content and access dynamics of a busy Web server: Findings and implications (2000)
Venkata N. Padmanabhan, Venkata N. Padmanabhan, Lili Qiu, Lili Qiu
In this paper, we studythe dynamics of one of the busiest Web sites in the Internet today. Unlike many other efforts that have analyzed client accesses as seen by proxies, we focus on the server end....
On Individual and Aggregate TCP Performance (1999)
Qiu, Lili, Zhang, Yin, Keshav, Srinivasan
As the most widely used reliable transport in today's Internet, TCP has been extensively studied in the past decade. However, previous research usually only considers a small or medium number of...
Programming Language Translation (1999)
As programming languages become more and more diversified, there is an increasing demand to translate programs written in one high-level language into another. Such translation can help us more...
On Individual and Aggregate TCP Performance (1999)
Qiu, Lili, Zhang, Yin, Keshav, Srinivasan
As the most widely used reliable transport in today's Internet, TCP has been extensively studied in the past decade. However, previous research usually only considers a small or medium number of...
Programming Language Translation (1999)
As programming languages become more and more diversified, there is an increasing demand to translate programs written in one high-level language into another. Such translation can help us more...
Optimizing TCP Start-up Performance (1999)
Zhang, Yin, Qiu, Lili, Keshav, Srinivasan
The performance of many networking protocols is dependent on a handful of tuning parameters. However, it is not obvious how to set or adapt these parameters to optimize performance. We believe that...
Optimizing TCP Start-up Performance (1999)
Zhang, Yin, Qiu, Lili, Keshav, Srinivasan
The performance of many networking protocols is dependent on a handful of tuning parameters. However, it is not obvious how to set or adapt these parameters to optimize performance. We believe that...
On individual and aggregate TCP performance (1999)
Lili Qiu, Yin Zhang, Srinivasan Keshav
As the most widely used reliable transport in today’s Internet, TCP has been extensively studied in the past decade. However, previous research usually only considers a small or medium number of...
On individual and aggregate TCP performance (1999)
Lili Qiu, Yin Zhang, Srinivasan Keshav
As the most widely used reliable transport in today's Internet, TCP has been extensively studied in the past. However, previous research usually only considers a small or medium number of...
Optimizing {TCP} Start-up Performance (1999)
Yin Zhang, Lili Qiu, Srinivasan Keshav
The performance of many networking protocols is dependent on a handful of tuning parameters. However, it is not obvious how to set or adapt these parameters to optimize performance. We believe that...
Optimizing TCP Start-up Performance (1999)
Yin Zhang, Lili Qiu, Srinivasan Keshav
The performance of many networking protocols is dependent on a handful of tuning parameters. However, it is not obvious how to set or adapt these parameters to optimize performance. We believe that...
On Individual and Aggregate TCP Performance (1999)
Lili Qiu, Yin Zhang, Srinivasan Keshav
As the most widely used reliable transport in today's Internet, TCP has been extensively studied in the past decade. However, previous research usually only considers a small or medium number of...
Trusted Computer System Evaluation Criteria (1985)
Lili Qiu, Yin Zhang, Feng Wang, Mi Kyung, Han Ratul Mahajan
We develop a general model to estimate the throughput and goodput between arbitrary pairs of nodes in the presence of interference from other nodes in a wireless network. Our model is based on...
Trusted Computer System Evaluation Criteria (1985)
Lili Qiu, Yin Zhang, Feng Wang, Mi Kyung, Han Ratul Mahajan
We develop a general model to estimate the throughput and goodput between arbitrary pairs of nodes in the presence of interference from other nodes in a wireless network. Our model is based on...
Trusted Computer System Evaluation Criteria (1985)
Lili Qiu, Yin Zhang, Feng Wang, Mi Kyung, Han Ratul Mahajan
We develop a general model to estimate the throughput and goodput between arbitrary pairs of nodes in the presence of interference from other nodes in a wireless network. Our model is based on...
Clustering Web Content for Efficient Replication
Yan Chen Uc, Yan Chen, Lili Qiu, Weiyu Chen, Luan Nguyen, Y H. Katz
Recently there has been an increasing deployment of content distribution networks (CDNs) that offer hosting services to Web content providers. In this paper, we first compare the un-cooperative...