Joint Network and Fountain Codes Design for RelayAssisted Multi-User System

作     者：HUANG Ying LEI Jing WEI Jibo HUANG Ying;LEI Jing;WEI Jibo;Institute of Electronic Science and Engineering,National University of Defense Technology

作者机构：Institute of Electronic Science and EngineeringNational University of Defense Technology 

基　　金：supported in part by a grant from the Ph.D. Programs Foundation of Ministry of Education of China under Grants No. 20094307110004 National Natural Science Foundation of China under Grants No.61372098, No.61101074 Natural Science Foundation of Hunan Province, China under Grants No.12jj2037 

出 版 物：《China Communications》 (中国通信（英文版）)

年 卷 期：2015年第12卷第7期

页      码：96-107页

摘      要：In relay-assisted multi-user system, relay coding is important to enhance the robustness and reliability of cooperative transmission. For better adaptability and efficiency, two joint network and fountain coding(JNFC) schemes are proposed. When the condition of all direct channels is worse, JNFC scheme based on distributed LT(DLT) codes is used. Otherwise, JNFC scheme based on multi-dimensional LT(MD-LT) codes is suited. For both two above-mentioned schemes, the united degree distribution design method for short-length fountain codes is proposed. For the latter scheme, MD-LT codes are proposed for equal error protection(EEP) of each user. Simulation results and analysis show that the united degree distribution need less decoding overhead compared with other degree distribution for short-length fountain codes. And then, all users are protected equally in despite of asymmetric uplinks.

主 题 词：relay coding network coding fountain codes LT codes Raptor codes DLT MD-LT EEP 

学科分类：080904[080904] 0810[工学-土木类] 0809[工学-计算机类] 07[理学] 08[工学] 080402[080402] 070104[070104] 0804[工学-材料学] 081001[081001] 081101[081101] 0701[理学-数学类] 0811[工学-水利类] 

核心收录：

D　O　I：10.1109/CC.2015.7188528

馆 藏 号：203158113...