Outage Probability Analysis and Power Allocation for Two-Way Relay Networks with User Selection and Outdated Channel State Information

被引：52

作者：

Fan, Lisheng ^{[1
,2
,5
]}

Lei, Xianfu ^{[3
,5
]}

Fan, Pingzhi ^{[3
]}

Hu, Rose Qingyang ^{[4
]}

机构：

[1] Shantou Univ, Dept Elect Engn, Shantou, Peoples R China

[2] Guilin Univ Elect Technol, Minist Educ, Key Lab Cognit Radio & Informat Proc, Guilin, Peoples R China

[3] SW Jiaotong Univ, Prov Key Lab Informat Coding & Transmiss, Chengdu, Peoples R China

[4] Utah State Univ, Dept Elect & Comp Engn, Logan, UT 84322 USA

[5] Xidian Univ, State Key Lab Integrated Serv Networks, Xian, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2012年 / 16卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Two-way relay networks (TWRN); user selection; outdated channel state information (CSI); outage probability; power allocation (PA); PERFORMANCE ANALYSIS; FEEDBACK; SYSTEMS;

D O I：

10.1109/LCOMM.2012.031212.112448

中图分类号：

TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构];

摘要：

This paper considers a multiuser two-way relay network (TWRN) consisting of one base station (BS), one amplify- and-forward (AF) relay and K mobile stations (MSs) among which the Nth-best MS is selected to exchange information with the BS. Specifically, we study the impact of outdated channel state information (CSI) on the system over time-varying Rayleigh block-fading channels by deriving a tight closed-form lower bound for the outage probability. We also obtain an asymptotic outage probability expression for high signal-to-noise ratio (SNR). Moreover, by minimizing the asymptotic outage probability, we optimize the power allocation (PA) among the network nodes. Numerical and simulation results collaborate the proposed studies.

引用

页码：638 / 641

页数：4

共 19 条

[1]

A simple cooperative diversity method based on network path selection [J].