Data Transmission Over Networks for Estimation and Control (2009)
Gupta, Vijay, Dana, Amir F., Hespanha, Joao P., Murray, Richard M., Hassibi, Babak
We consider the problem of controlling a linear time invariant process when the controller is located at a location remote from where the sensor measurements are being generated. The communication...
Data Transmission over Networks for Estimation and Control (2008)
Vijay Gupta, Amir F. Dana, Student Member, João P. Hespanha, Richard M. Murray, Babak Hassibi, ...
We consider the problem of controlling a linear time invariant process when the controller is located at a location remote from where the sensor measurements are being generated. The communication...
mass and momentum balance in a stream network: theoretical derivation and (2008)
Vijay Gupta, Ricardo Mantilla, Peter Furey
Abstract. The classic problem of predicting floods in ungauged or poorly gauged basins requires a physical understanding of how flood peaks change across multiple spatial scales. Recent advances to...
Data Transmission over Networks for Estimation and Control (2008)
Vijay Gupta, Student Member, Amir F. Dana, Student Member, João P. Hespanha, Richard M. Murray, ...
We consider the problem of controlling a linear time invariant process when the controller is located at a location remote from where the sensor measurements are being generated. The communication...
Competitive algorithms for asynchronous update propagation in mobile computing and (2007)
for search engine freshness
Reducing Bandwidth and Disk Space Requirement for Filesystems In Mobile Computing (2007)
Currently, there is a substantial availability of low bandwidth wireless networks which can be used to enhance mobile computing. However, to get the same computing service as on the wireless...
A Distributed Backo Algorithm to support real-time trac on Ethernet (2007)
Ethernets are very popular in LANs because of their ease of administration. With the growing trend towards distributed multimedia applications, it has become essential for the underlying systems to...
Sensor scheduling using smart sensors (2007)
Hovareshti, Pedram, Gupta, Vijay, Baras, John S.
The sensor selection problem arises when multiple sensors are jointly trying to estimate a process but only a subset of them can take and/or use measurements at any time step. In a networked...
Sensor scheduling using smart sensors (2007)
Hovareshti, Pedram, Gupta, Vijay, Baras, John S.
The sensor selection problem arises when multiple sensors are jointly trying to estimate a process but only a subset of them can take and/or use measurements at any time step. In a networked...
Distributed estimation and control in networked systems (2006)
Rapid advances in information processing, communication and sensing technologies have enabled more and more devices to be provided with embedded processors, networking capabilities and sensors. For...
On the effect of quantization on performance at high rates (2006)
Gupta, Vijay, Dana, Amir F., Murray, Richard M., Hassibi, Babak
We study the effect of quantization on the performance of a scalar dynamical system in the high rate regime. We evaluate the LQ cost for two commonly used quantizers: uniform and logarithmic and...
Distributed estimation and control in networked systems (2006)
Rapid advances in information processing, communication and sensing technologies have enabled more and more devices to be provided with embedded processors, networking capabilities and sensors. For...
Hepatitis-B : recent treatment (2006)
Gupta, Vijay, Hussain, Jamil-Ul, Vijay, Shally
Hepatitis-B is global health problem. The recent treatment of it is discussed in the present review.
We give a sharp estimate on the rate of convergence for the Bézier variant of Bleimann, Butzer, and Hahn operators for functions of bounded variation. We consider the case when...
Simultaneous approximation for the Phillips operators (2006)
N. K. Govil, Vijay Gupta, Muhammad Aslam Noor
We study the simultaneous approximation properties of the well-known Phillips operators. We establish the rate of convergence of the Phillips operators in simultaneous approximation by means of the...
Towards Receding Horizon Networked Control (2006)
Vijay Gupta, Bruno Sinopoli, Sachin Adlakha, Andrea Goldsmith
Abstract — This paper deals with the design of control systems over lossy networks. A network is assumed to exist between the sensor and the controller and between the latter and the actuator....
We give a sharp estimate on the rate of convergence for the Bézier variant of Bleimann, Butzer, and Hahn operators for functions of bounded variation. We consider the case when α≥1 and our result...
Simultaneous approximation for the Phillips operators (2006)
N. K. Govil, Vijay Gupta, Muhammad Aslam Noor
We study the simultaneous approximation properties of the well-known Phillips operators. We establish the rate of convergence of the Phillips operators in simultaneous approximation by means of the...
Vijay Gupta, Ulrich Abel, Mircea Ivan
We study the approximation properties of beta operators of second kind. We obtain the rate of convergence of these operators for absolutely continuous functions having a derivative equivalent to a...
Optimal LQG control across packet-dropping links (2005)
Vijay Gupta, Demetri Spanos, Babak Hassibi, Richard M Murray
We examine optimal Linear Quadratic Gaussian control for a system in which communication between the sensor (output of the plant) and the controller occurs across a packet-dropping link. We extend...
Vijay Gupta, Ulrich Abel, Mircea Ivan
We study the approximation properties of beta operators of second kind. We obtain the rate of convergence of these operators for absolutely continuous functions having a derivative equivalent to a...
Gupta, Vijay, Chung, Timothy H., Hassibi, Babak, Murray, Richard M.
In this note we consider the following problem. Suppose a set of sensors is jointly trying to estimate a process. One sensor takes a measurement at every time step and the measurements are then...
Optimal LQG Control Across a Packet-Dropping Link (2004)
Gupta, Vijay, Spanos, Demetri, Hassibi, Babak, Murray, Richard M.
We examine optimal Linear Quadratic Gaussian control for a system in which communication between the sensor (output of the plant) and the controller occurs across a packet-dropping link. We extend...
A Sub-optimal Algorithm to Synthesize Control Laws for a Network of Dynamic Agents (2004)
Gupta, Vijay, Hassibi, Babak, Murray, Richard M.
We study the synthesis problem of an LQR controller when the matrix describing the control law is constrained to lie in a particular vector space. Our motivation is the use of such control laws to...
We consider a Bézier-Durrmeyer integral variant of the Baskakov operators and study the rate of convergence for functions of bounded variation.
On simultaneous approximation for some modified Bernstein-type operators (2004)
We study the simultaneous approximation for a certain variant of Bernstein-type operators.
On a decentralized active sensing strategy using mobile sensor platforms in a network (2004)
Timothy H. Chung, Vijay Gupta, Joel W. Burdick, Richard M. Murray
Abstract — In this paper, we consider the problem of active sensing using mobile nodes as a sensor network to estimate the state of a dynamic target. We propose a gradient-searchbased decentralized...
Scheduling for Distributed Sensor Networks with Single Sensor Measurement per Time Step (2004)
Timothy H. Chung, Vijay Gupta, Babak Hassibi, Joel Burdick, Richard M. Murray
Abstract- We examine the prohlem of distributed estimation when only one sensor can take a measurement per time step. We solve lor the optimal recursive estimation algorithm when the sensor switching...
ON THE APPROXIMATION OF LOCALLY BOUNDED FUNCTIONS BY OPERATORS OF BLEIMANN, BUTZER AND HAHN (2004)
Jesús De, La Cal, Vijay Gupta, Departamento De, Matemática Aplicada, Y Estadística, ...
Communicated by A. Lupa¸s ABSTRACT. We estimate the rate of the pointwise approximation by operators of Bleimann, Butzer and Hahn of locally bounded functions, and of functions having a locally...
We consider a Bézier-Durrmeyer integral variant of the Baskakov operators and study the rate of convergence for functions of bounded variation.
On simultaneous approximation for some modified Bernstein-type operators (2004)
We study the simultaneous approximation for a certain variant of Bernstein-type operators.
Scheduling for Distributed Sensor Networks with Single Sensor Measurement per Time Step (2004)
Timothy H. Chung, Vijay Gupta, Babak Hassibi, Joel Burdick, Richard M. Murray
Abstract — We examine the problem of distributed estimation when only one sensor can take a measurement per time step. We solve for the optimal recursive estimation algorithm when the sensor...
Decentralized Analysis of Stability of Stochastically Varying Formations of Dynamic Agents. (2003)
We analyze a network of dynamic agents where the topology of the network specifies the information flow between the agents. We present an analysis method for such a system for both consensus and...
Lp-inverse theorem for modified beta operators (2003)
Vijay Gupta, Prerna Maheshwari, V. K. Jain
We obtain a converse theorem for the linear combinations of modified beta operators whose weight function is the Baskakov operators. To prove our inverse theorem, we use the technique of linear...
A note on integral modification of the Meyer-König and Zeller operators (2003)
Guo (1988) introduced the integral modification of Meyer-Kö nig and Zeller operators Mˆn and studied the rate of convergence for functions of bounded variation. Gupta (1995) gave the...
A note on integral modification of the Meyer-König and Zeller operators (2003)
Guo (1988) introduced the integral modification of Meyer-Kö nig and Zeller operators Mˆn and studied the rate of convergence for functions of bounded variation. Gupta (1995) gave the sharp estimate...
Lp-inverse theorem for modified beta operators (2003)
Vijay Gupta, Prerna Maheshwari, V. K. Jain
We obtain a converse theorem for the linear combinations of modified beta operators whose weight function is the Baskakov operators. To prove our inverse theorem, we use the technique of linear...
Rate of convergence on Baskakov-Beta-Bezier operators for bounded variation functions (2002)
We introduce a new sequence of linear positive operators Bn,α(f,x), which is the Bezier variant of the well-known Baskakov Beta operators and estimate the rate of convergence of Bn,α(f,x) for...
Internet search engine freshness by web server help (2001)
We study how to keep the Internet search engines up-todate with the changes occurring at the various web servers in the Internet. Currently, web search engines poll the web servers on a per-URL basis...
Reliable multicast of bulk data: congestion, fairness and freshness issues (1999)
Abstract---Network support for reliable multicast of bulk data can aid software distribution as well as server-pushing of web-pages. An important problem which needs to be addressed for facilitating...
Fundamental Studies on Hydrology, Hydraulics and Geometry of River Networks. (1998)
The proposed research had two broad objectives; first on investigation of the hydraulic geometry of river networks and runoff, and second on the mesoscale rainfall. The most important theme which...
Fundamental Studies on Hydrology, Hydraulics and Geometry of River Networks. (1998)
Prepared in collaboration with Oregon State Univ.
This report discusses a novel laser spallation technique for measuring the tensile strength of planar thin film interfaces. In this technique, a laser-produced compressive stress pulse in the...
Modeling and Control for Rapid Thermally Driven Deposition Processes. (1998)
Emami-Naeini, Abbas, Jensen, Klavs F., Ghosal, Sarbajit, Gupta, Vijay
The objectives of this program were the study of the chemistry of YBCO thin film deposition by MOCVD, and the model-based control of MOCVD reactors. Model reduction techniques were applied to...
Mechanism Based Failure Laws for Graphite/Epoxy Composites (1998)
A significant progress has been made towards achieving the overall goal of developing mechanism-based failure laws for graphite/epoxy laminate under biaxial compression. Microstructural-level...
Silane-based chemistries on stainless steel substrates have been investigated to develop reliable stainless steel/E-glass composite sections. A chemistry has been uncovered that leads to a joint...
A fundamental relationship between intrinsic and total toughness of tantalum/sapphire, Al/epoxy, and Si/epoxy joints is established using several novel interface characterization tools. The focus of...
Gupta, Vijay, Yuan, Jun, Pronin, Alexander
This paper summarizes recent developments in the laser spallation technique for measuring the tensile strength of planar thin film interfaces. In this technique, a laser-produced compressive stress...
FRACTURE MECHANISMS AND EFFECT OF INTERFACIAL SEGREGANTS ON METAL/CERAMIC INTERFACES. (1998)
Gupta, Vijay, Yuan, Jun, Kim, Moon
Advanced Materials 93, Part B: Composites, Grain Boundaries and Nanophase Materials; Edited by M. Sakai, et al; Elsevier Science B.V. : The Netherlands
Photocopy of typescript.
A Framework for Application Adaptation in Mobile Computing Environments (1997)
Vaduvur Bharghavan, Vijay Gupta
State-of-the-art mobile computing environments must deal with scarce and dynamically varying resources - in particular, the network quality of service. Applications which execute in such environments...
Global approximation by modified Baskakov type operators (1995)
In the present paper, we prove a global direct theorem for the modified Baskakov type operators in terms of so called Ditzian-Totik modulus of smoothness.
A model for the fluid mechanical excitation of the vocal cords. (1972)
Thesis (Ph. D.)--University of Minnesota.
A model for the fluid mechanical excitation of the vocal cords [microform] (1972)
Thesis (Ph. D.)--University of Minnesota.