Proceedings ArticleDOI
Simultaneous nonunique decoding is rate-optimal
Bernd Bandemer,Abbas El Gamal,Young-Han Kim +2 more
- pp 9-16
TLDR
In this paper, it was shown that simultaneous non-unique decoding is rate-optimal for the general K-sender, L-receiver discrete memoryless interference channel when encoding is restricted to randomly generated codebooks, superposition coding, and time sharing.Abstract:
It is shown that simultaneous nonunique decoding is rate-optimal for the general K-sender, L-receiver discrete memoryless interference channel when encoding is restricted to randomly generated codebooks, superposition coding, and time sharing. This result implies that the Han-Kobayashi inner bound for the two-user-pair interference channel cannot be improved simply by using a better decoder such as the maximum likelihood decoder. It also generalizes and extends previous results by Baccelli, El Gamal, and Tse on Gaussian interference channels with point-to-point Gaussian random codebooks and shows that the Cover-van der Meulen inner bound with no common auxiliary random variable on the capacity region of the broadcast channel can be improved to include the superposition coding inner bound simply by using simultaneous nonunique decoding. The key to proving the main result is to show that after a maximal set of messages has been recovered, the remaining signal at each receiver is distributed essentially independently and identically.read more
Citations
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Journal ArticleDOI
A Survey of Resource Management Toward 5G Radio Access Networks
TL;DR: This paper seeks to take stock of state-of-the-art (SOTA) on relevant radio interference and resource management (RIRM) schemes that have been proposed in the last five years and highlights a number of open research issues deduced from recently proposed RIRM schemes.
Journal ArticleDOI
Advanced interference management for 5G cellular networks
TL;DR: This article provides the vision on advanced interference management for 5G cellular systems: network-side interference management needs to be complemented by UE- side interference management to realize true factor-one resource reuse.
Proceedings ArticleDOI
On the capacity region for index coding
TL;DR: A new inner bound on the capacity region of the general index coding problem is established, which relies on a random coding scheme and optimal decoding, and has a simple polymatroidal single-letter expression.
Posted Content
An Index Coding Approach to Caching with Uncoded Cache Placement.
TL;DR: This paper focuses on deriving fundamental performance limits for the caching problem by using tools for the index coding problem that were either known or are newly developed in this work.
Journal ArticleDOI
Virtual Full-Duplex Relaying With Half-Duplex Relays
Song-Nam Hong,Giuseppe Caire +1 more
TL;DR: It is shown that CoF is particularly attractive in the case of multihop relaying, when the channel gains have fluctuations not larger than 3 dB, yielding a rate that does not depend on the number of relaying stages, and quantization mean-square distortion at the relays is chosen appropriately.
References
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Convex Optimization
Stephen Boyd,Lieven Vandenberghe +1 more
TL;DR: In this article, the focus is on recognizing convex optimization problems and then finding the most appropriate technique for solving them, and a comprehensive introduction to the subject is given. But the focus of this book is not on the optimization problem itself, but on the problem of finding the appropriate technique to solve it.
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Abbas El Gamal,Young-Han Kim +1 more
TL;DR: In this article, a comprehensive treatment of network information theory and its applications is provided, which provides the first unified coverage of both classical and recent results, including successive cancellation and superposition coding, MIMO wireless communication, network coding and cooperative relaying.
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A new achievable rate region for the interference channel
Te Sun Han,K. Kobayashi +1 more
TL;DR: A new achievable rate region for the general interference channel which extends previous results is presented and evaluated and the capacity of a class of Gaussian interference channels is established.
Book ChapterDOI
Network Information Theory
Thomas M. Cover,Joy A. Thomas +1 more
TL;DR: A system with many senders and receivers contains many new elements in the communication problem: interference, cooperation and feedback; these are the issues that are the domain of network information theory.
Journal ArticleDOI
On The Han–Kobayashi Region for theInterference Channel
TL;DR: It is established that the recently discovered Chong-Motani-Garg rate region is a new representation of the Han-Kobayashi region, and a tighter bound for the cardinality of the time-sharing auxiliary random variable emerges from this simplified description.