Output-Threshold Multiple-Relay-Selection Scheme for Cooperative Wireless Networks

被引：54

作者：

Amarasuriya, Gayan ^{[1
]}

Ardakani, Masoud ^{[1
]}

Tellambura, Chintha ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2010年 / 59卷 / 06期

关键词：

Amplify-and-forward (AF) relaying; cooperative diversity; relay selection (RS); PERFORMANCE ANALYSIS; DIVERSITY; PROTOCOLS;

D O I：

10.1109/TVT.2010.2048767

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：

An output-threshold multiple-relay-selection (OT-MRS) scheme for dual-hop multibranch cooperative wireless networks is proposed. In this scheme, the first L-c (nonordered) relays are sequentially selected out of L relays such that the SNR of the maximal ratio combined Lc relayed paths and the direct path exceeds a preset threshold. Analytical results for the performance bounds are derived. The numerical results verify the analyses and show that OT-MRS outperforms optimal single-relay selection and generalized-selection-combining-based multiple relay-selection for low to moderately high SNRs. The proposed scheme provides more flexibility in utilizing bandwidth and spatial diversity in cooperative wireless networks.

引用

页码：3091 / 3097

页数：7

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