activity
20072024
most citedA New Sphere-Packing Bound for Maximal Error Exponent for Multiple-Access Channels

2 citations · 4 across the 5 of their papers we have counts for

collaborators

6 papers

cs.IT2024

Quantum Soft Covering with Relative Entropy Criterion

Xingyi He, S. Sandeep Pradhan

In this work, we propose a soft covering problem for fully quantum channels using relative entropy as a criterion for operator closeness. We establish covering lemmas by deriving o…

cs.IT2020

Decentralized sequential active hypothesis testing and the MAC feedback capacity

Achilleas Anastasopoulos, Sandeep Pradhan

We consider the problem of decentralized sequential active hypothesis testing (DSAHT), where two transmitting agents, each possessing a private message, are actively helping a thir…

cs.IT2009

A New Universal Random-Coding Bound for Average Probability Error Exponent for Multiple-Access Channels

Ali Nazari, Achilleas Anastasopoulos, S. Sandeep Pradhan

In this work, a new upper bound for average error probability of a two-user discrete memoryless (DM) multiple-access channel (MAC) is derived. This bound can be universally obtaine…

cs.IT2009

A New Achievable Rate Region for the Discrete Memoryless Multiple-Access Channel with Noiseless Feedback

Ramji Venkataramanan, S. Sandeep Pradhan

A new single-letter achievable rate region is proposed for the two-user discrete memoryless multiple-access channel(MAC) with noiseless feedback. The proposed region includes the C…

cs.IT2008★ 2 cited

A New Sphere-Packing Bound for Maximal Error Exponent for Multiple-Access Channels

Ali Nazari, Sandeep Pradhan, Achilleas Anastasopoulos

In this work, a new lower bound for the maximal error probability of a two-user discrete memoryless (DM) multiple-access channel (MAC) is derived. This is the first bound of this t…

cs.IT2007★ 2 cited

On Evaluating the Rate-Distortion Function of Sources with Feed-Forward and the Capacity of Channels with Feedback

Ramji Venkataramanan, S. Sandeep Pradhan

We study the problem of computing the rate-distortion function for sources with feed-forward and the capacity for channels with feedback. The formulas (involving directed informati…