多协作中继多接收天线下的解码中继传输的功率分配

doi:10.13190/jbupt.200806.104.194

北京邮电大学学报 ›› 2008, Vol. 31 ›› Issue (6): 104-108.doi: 10.13190/jbupt.200806.104.194

多协作中继多接收天线下的解码中继传输的功率分配

张路1, 2, 啜钢1, 2, 林立凡1, 2, 温小军1, 2

(1．北京邮电大学信息与通信工程学院, 北京 100876；2．泛网无线通信教育部重点实验室(北京邮电大学), 北京 100876)

收稿日期:2008-07-23 修回日期:2008-09-24 出版日期:2008-12-31 发布日期:2008-12-31
通讯作者: 啜钢

Power Allocation for Cooperative Decode-and-Forward Transmission with Multiple Cooperative Relays and Multiple Received Antennas

ZHANG Lu1, 2, CHUAI Gang1, 2, LIN Li-fan1, 2, WEN Xiao-jun1, 2

(1．School of Information and Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China；2．Key Laboratory of Universal Wireless Communication(Beijing University of Posts and Telecommunications), Ministry of Education, Beijing 100876, China)

Received:2008-07-23 Revised:2008-09-24 Online:2008-12-31 Published:2008-12-31
Contact: Chuai Gang

摘要/Abstract

摘要：

提出协作通信中多协作中继和多接收天线的分析模型．采用一种理论近似的方法来分析源节点和中继节点之间的功率分配，并将对数运算转换成线性运算，从而简化了问题的复杂度．通过理论分析与仿真可知，当系统模型确定以后，功率分配系数存在最优值，由此得出最优功率分配系数和协作增益与信噪比的关系．理论分析和仿真验证表明，所提的近似算法可以有效地运用于基于多协作中继传输的协作通信．

关键词: 协作通信, 虚拟多输入多输出系统, 中断概率, 功率分配

Abstract:

An analytical model based on multiple cooperative relays and multiple antennas at the destination in cooperative communication is presented. An approximate method is derived for analysis of the power allocation between the multiple relay nodes and the source node, so the transforming logarithmic operation into linear operation becomes very. Analysis and simulation demonstrate that there exists an optimal power allocation (OPA) parameter when the system model is determined. The effect signal-to-noise ratio (SNR) on the OPA parameter is also shown.

Key words: cooperative communication, virtual multiple-input multiple-output, outage probability, power allocation

中图分类号:

TN803.4

张路1, 2, 啜钢1, 2, 林立凡1, 2, 温小军1, 2. 多协作中继多接收天线下的解码中继传输的功率分配[J]. 北京邮电大学学报, 2008, 31(6): 104-108.

ZHANG Lu1, 2, CHUAI Gang1, 2, LIN Li-fan1, 2, WEN Xiao-jun1, 2

. Power Allocation for Cooperative Decode-and-Forward Transmission with Multiple Cooperative Relays and Multiple Received Antennas[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2008, 31(6): 104-108.

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多协作中继多接收天线下的解码中继传输的功率分配

Power Allocation for Cooperative Decode-and-Forward Transmission with Multiple Cooperative Relays and Multiple Received Antennas

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