电子学报2011，Vol.39Issue(7)：1663-1667,5.
无线并行放大转发中继传输中基于信噪比的功率分配研究
SNR-Based Power Allocation in Wireless Parallel Amplify-and-Forward Relay Transmissions
摘要
Abstract
In wireless communications, efficient power allocation has the advantage of reducing resource consumption, achieving better quality-of-service (QoS), and reducing network interference. This paper is focus on the power allocation problem in wireless parallel amplify-and-forward relay transmissions. Particularly, the objective is set to minimize the transmit power of the communication nodes while guaranteeing the signal-to-noise ratio (SNR) requirement at the destination node. Firstly,based on the established channel model of wireless relay cooperative communication system, the expression of SNR is derived. Following that, the power allocation problem is modeled as a combinatorial optimization problem.Moreover,using convex optimization theory,this paper proposes a suboptimal power allocation algorithm with low complexity. The simulation results show that the method proposed in tins paper is capable of resolving the power allocation problem in wireless relay communication systems with low computational complexity as well as stable performance.关键词
无线通信/中继/功率分配/放大转发/信噪比Key words
wireless communications/relay/power allocation/amplify-and-forward/signal-to-noise ratio分类
信息技术与安全科学引用本文复制引用
王俊波,曹哲,陈明,焦媛..无线并行放大转发中继传输中基于信噪比的功率分配研究[J].电子学报,2011,39(7):1663-1667,5.基金项目
基金项目:国家自然科学基金(No.60972023) （No.60972023）
国家科技重大专项(No.2010ZX03003-002,No.2010ZX03003-004) （No.2010ZX03003-002,No.2010ZX03003-004）
“区域光纤通信网与新型光通信系统”国家重点实验室开放课题(No.2008SH06) （No.2008SH06）
东南大学移动通信国家重点实验室开放研究基金(No.2010D01) （No.2010D01）
东南大学移动通信国家重点实验室研究基金(No.2010A06) （No.2010A06）
南京航空航天大学新教师启动基金 （）
南京航空航天大学基本科研业务费专项科研项目(No.NS2010091) （No.NS2010091）
研究生创新基地(实验室)开放基金 （实验室）
