Decode-and-forward Relaying in Cellular Systems: Performance Analysis and Optimum Power Allocation

被引：0
|
作者：
Lin, Meilu [1 ]
Ge, Jianhua [1 ]
Yang, Ye [1 ]
Shen, Chao [2 ]
Qiu, Zhengding [2 ]
机构：
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
[2] Beijing Jiaotong Univ, Inst Informat Sci, Beijing, Peoples R China
来源：
2011 IET 4TH INTERNATIONAL CONFERENCE ON WIRELESS, MOBILE & MULTIMEDIA NETWORKS (ICWMMN 2011) | 2011年
基金：
中国国家自然科学基金;
关键词：
maximum-ratio transmission; decode-and-forward; maximum-ratio combining; outage probability; symbol-error-rate; optimum-power-allocation; WIRELESS NETWORKS; PROBABILITY;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper considers a downlink cellular system with decode-and-forward (DF) protocol. The multiple-antenna base station uses maximum-ratio transmission to communicate with the single-antenna mobile station (MS) through direct link and a DF relay station, and the MS utilizes maximum-ratio combining to deal with the received signal. Our interest herein lies in performance analysis for this practical cellular system. We derive exact expressions for the outage probability and the symbol error rate (SER) in closed-form. Moreover, a simple asymptotic approximation and a tight lower bound are presented for the outage probability and the SER respectively, based on which we propose two optimum power allocation schemes as well. Simulation results are provided to validate the theoretical analysis.
引用
收藏
页码：333 / 337
页数：5
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