A training-based scheme for communicating over unknown channels with feedback (2009)
Mahajan, Aditya, Tatikonda, Sekhar
We consider communication with noiseless feedback over a channel that is either BSC(p) or BSC(1-p); neither the transmitter nor the receiver know which one. The parameter $p \in [0, 1/2]$ is known to...
Network Tomography Based on Additive Metrics (2008)
Inference of the network structure (e.g., routing topology) and dynamics (e.g., link performance) is an essential component in many network design and management tasks. In this paper we propose a...
Liu, Jialing, Elia, Nicola, Tatikonda, Sekhar
In this paper, we propose a capacity-achieving communication scheme for a Gaussian finite-state Markov channel (FSMC) with noiseless output feedback and with channel state information, subject to an...
Optimal and Structured Call Admission Control Policies for Resource-Sharing Systems (2008)
Jian Ni, Student Member, Senior Member, Sekhar Tatikonda, Brahim Bensaou
Abstract—Many communication and networking systems can be modeled as resource-sharing systems with multiple classes of calls. Call admission control (CAC) is an essential component of such systems....
A Large-Scale Distributed Traffic Matrix Estimation Algorithm (2008)
Jian Ni, Sekhar Tatikonda, Edmund M. Yeh
Abstract — As today’s communication networks (e.g., the Internet) grow in size and diversity, accurate, large-scale, and distributed traffic matrix estimation techniques will become increasingly...
Como, Giacomo, Yuksel, Serdar, Tatikonda, Sekhar
The error exponent of Markov channels with feedback is studied in the variable-length block-coding setting. Burnashev's classic result is extended and a single letter characterization for the...
On the Feedback Capacity of Power Constrained Gaussian Noise Channels with Memory (2007)
Yang, Shaohua, Kavcic, Aleksandar, Tatikonda, Sekhar
For a stationary additive Gaussian-noise channel with a rational noise power spectrum of a finite-order $L$, we derive two new results for the feedback capacity under an average channel input power...
Optimal and structured call admission control policies for resource-sharing systems (2007)
Ni, Jian, Tsang, Danny H. K., Tatikonda, Sekhar, Bensaou, Brahim
Many communication and networking systems can be modeled as resource-sharing systems with multiple classes of calls. Call admission control (CAC) is an essential component of such systems. Markov...
The Capacity of Channels with Feedback (2006)
Tatikonda, Sekhar, Mitter, Sanjoy
We introduce a general framework for treating channels with memory and feedback. First, we generalize Massey's concept of directed information and use it to characterize the feedback capacity of...
Control under Communication Constraints (2004)
Sekhar Tatikonda, Sanjoy Mitter
There is an increasing interest in studying control systems employing multiple sensors and actuators that are geographically distributed. Communication is an important component of these distributed...
Stochastic Linear Control over a Communication Channel (2004)
Sekhar Tatikonda, Anant Sahai, Sanjoy Mitter, Life Fellow
We examine linear stochastic control systems when there is a communication channel connecting the sensor to the controller. The problem consists of designing the channel encoder and decoder as well...
Shaohua Yang, Ar Kavčić, Sekhar Tatikonda
We consider a finite-state machine channel with a finite memory length (e.g., finite length intersym-bol interference channels with finite input alphabets – also known as partial response...
Stochastic Linear Control over a Communication Channel (2003)
Sekhar Tatikonda, Anant Sahai, Sanjoy Mitter
We examine linear stochastic control systems when there is a communication channel connecting the sensor to the controller. The problem consists of designing the channel encoder and decoder as well...
Control over Noisy Channels (2002)
Sekhar Tatikonda, Sanjoy Mitter
Communication is an important component of distributed and networked controls systems. In our companion paper we presented a framework for studying control problems with a digital noiseless...
The capacity of channels with feedback — Part I: The general case.” Submitted to (2001)
Sekhar Tatikonda, Sanjoy Mitter
Submitted to IEEE Transactions on Information Theory This paper presents a general framework for proving coding theorems for channels with memory and feedback. We introduce and then generalize...
Optimal sequential vector quantization of Markov sources (2001)
Vivek S. Borkar, Sanjoy K. Mitter, Sekhar Tatikonda
Abstract. The problem of sequential vector quantization of a stationary Markov source is cast as an equivalent stochastic control problem with partial observations. This problem is analyzed using the...
Optimal Sequential Vector Quantization of Markov Sources (1997)
Borkar V. S, Mitter S. K, Tatikonda S, V. S. Borkar, Sanjoy K. Mittert, Sekhar Tatikonda
for publication to IEEE Transactions on Information Theory,