117 citations · 689 across the 49 of their papers we have counts for
6 papers · 2 filters
Multilevel Diversity Coding with Regeneration: Separate Coding Achieves the MBR Point
Shuo Shao, Tie Liu, Chao Tian
The problem of multilevel diversity coding with regeneration is considered in this work. Two new outer bounds on the optimal tradeoffs between the normalized storage capacity and r…
Broadcasting Correlated Vector Gaussians
Lin Song, Jun Chen, Chao Tian
The problem of sending two correlated vector Gaussian sources over a bandwidth-matched two-user scalar Gaussian broadcast channel is studied in this work, where each receiver wishe…
Multilevel Diversity Coding with Regeneration
Chao Tian, Tie Liu
Digital contents in large scale distributed storage systems may have different reliability and access delay requirements, and for this reason, erasure codes with different strength…
A Note on the Rate Region of Exact-Repair Regenerating Codes
Chao Tian
The rate region of the exact-repair regenerating codes is provided. The outer bound is obtained through extension of the computational approach developed in an earlier wo…
A Note on the Fundamental Limits of Coded Caching
Chao Tian
The fundamental limit of coded caching is investigated for the case with files and users. An improved outer bound is obtained through the computational approach develop…
Matched Multiuser Gaussian Source-Channel Communications via Uncoded Schemes
Chao Tian, Jun Chen, Suhas Diggavi +1
We investigate whether uncoded schemes are optimal for Gaussian sources on multiuser Gaussian channels. Particularly, we consider two problems: the first is to send correlated Gaus…