1.3k citations · 3.7k across the 93 of their papers we have counts for
7 papers · 2 filters
Secret-key Agreement with Channel State Information at the Transmitter
Ashish Khisti, Suhas Diggavi, Gregory Wornell
We study the capacity of secret-key agreement over a wiretap channel with state parameters. The transmitter communicates to the legitimate receiver and the eavesdropper over a disc…
The Approximate Capacity of the Gaussian N-Relay Diamond Network
Urs Niesen, Suhas Diggavi
We consider the Gaussian "diamond" or parallel relay network, in which a source node transmits a message to a destination node with the help of N relays. Even for the symmetric set…
The Achievable Distortion Region of Bivariate Gaussian Source on Gaussian Broadcast Channel
Chao Tian, Suhas Diggavi, Shlomo Shamai
We provide a complete characterization of the achievable distortion region for the problem of sending a bivariate Gaussian source over bandwidth-matched Gaussian broadcast channels…
Approximate Capacity of Gaussian Interference-Relay Networks with Weak Cross Links
Soheil Mohajer, Suhas N. Diggavi, Christina Fragouli +1
In this paper we study a Gaussian relay-interference network, in which relay (helper) nodes are to facilitate competing information flows over a wireless network. We focus on a two…
Approximately achieving Gaussian relay network capacity with lattice codes
Ayfer Ozgur, Suhas Diggavi
Recently, it has been shown that a quantize-map-and-forward scheme approximately achieves (within a constant number of bits) the Gaussian relay network capacity for arbitrary topol…
Optimality and Approximate Optimality of Source-Channel Separation in Networks
Chao Tian, Jun Chen, Suhas Diggavi +1
We consider the source-channel separation architecture for lossy source coding in communication networks. It is shown that the separation approach is optimal in two general scenari…