Distributed Decode-Forward for Relay Networks SCIE SCOPUS

Cited 13 time in WEB OF SCIENCE Cited 14 time in Scopus
Title
Distributed Decode-Forward for Relay Networks
Author(s)
Lim, Sung Hoon; Kim, Kwang Taik; Kim, Young-Han
Publication Year
2017-07
Abstract
A new coding scheme for general N-node relay networks is presented for unicast, multicast, and broadcast. The proposed distributed decode-forward scheme combines and generalizes Marton coding for single-hop broadcast channels and the Cover-El Gamal partial decode-forward coding scheme for three-node relay channels. The key idea of the scheme is to precode all the codewords of the entire network at the source by multicoding over multiple blocks. This encoding step allows these codewords to carry partial information of the messages implicitly without complicated rate splitting and routing. This partial information is then recovered at the relay nodes and forwarded further. For N-node Gaussian unicast, multicast, and broadcast relay networks, the scheme achieves within 0.5N bits from the cutset bound, and thus from the capacity (region), regardless of the network topology, channel gains, or power constraints. Roughly speaking, distributed decode-forward is dual to noisy network coding, which generalized compress-forward to unicast, multicast, and multiple access relay networks.
ISSN
0018-9448
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1203
DOI
10.1109/TIT.2017.2701198
Bibliographic Citation
IEEE TRANSACTIONS ON INFORMATION THEORY, v.63, no.7, pp.4103 - 4118, 2017
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Subject
RADIO ACCESS NETWORKS; BROADCAST CHANNELS; CAPACITY THEOREMS; INFORMATION-FLOW; DIAMOND NETWORK; INTERFERENCE; COMPRESSION; SUM
Keywords
Decode-forward; discrete memoryless network; Gaussian network; network coding; relaying; capacity
Type
Article
Language
English
Document Type
Article
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse