| 摘要: |
| 针对非协作通信和传统协作通信系统不能达到高天线分集增益的问题，提出基于网络
编码的用户协作系统模型。研究了基于网络编码不同协作用户的天线分集增益,并分析非协
作机制、传统用户协作机制和基于网络编码用户协作机制的中断概率。理论分析和系统仿真
表明，基于网络编码的用户协作系统能显著降低系统中断概率，获得更大的分集增益，且协
作用户数越多，系统分集度越好。 |
| 关键词: 协作通信 网络编码 分集增益 中断概率 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目（60962002）；广西高校人才小高地
建设创新团队资助计划项目（桂教人\[2007\]71号）；广西信息与通讯技术重点实验室资助
项目（20904） |
|
| Performance Analysis of User Cooperative Diversity System Based on Network Coding |
| QIN Tuan-fa,LUO Hui-ping,LIU Jia-feng,LUO Jian-zhong |
| (School of Computer and Electronic Information, Guangxi University, Nanning 5300
04, China) |
| Abstract: |
| In order to solve the problem that non-cooperative communication and t
he conventional cooperative communication systems only obtain low antenna divers
ity gain, a user cooperative system model based on network coding is proposed i
n this paper. The antenna diversity gain with different users by implementing ne
twork coding is investigated,the outage probability performance of noncoopera
tive communic
a
tion scheme, traditional user cooperative scheme and network coded user cooperat
ive scheme are analysed. Theoretical analysis and experimental simulation show
that cooperative scheme with network coding can reduce the system outage proba
bility remarkably and obtain a higher diversity gain. The more cooperative users
, the better diversity gain. |
| Key words: cooperative communication network coding diversity gain outage probability |
《电讯技术》编辑部 