Optimization scheme with pre-processing for cooperative relay multicast networks in cellular system

doi:10.1016/S1005-8885(10)60057-X

Acta Metallurgica Sinica(English letters)

Optimization scheme with pre-processing for cooperative relay multicast networks in cellular system

王成金¹,李曦²,张琳³,纪红²

Key Laboratory Of Universal Wireless Communication, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2010-10-22 修回日期:2011-02-22 出版日期:2011-06-30 发布日期:2011-06-13
通讯作者: 王成金 E-mail:wcj@bupt.edu.cn
基金资助:
国家高技术研究发展计划("863"计划);国家自然科学基金“异构IP网络中基于多目标决策理论的资源优化技术研究”

Optimization scheme with pre-processing for cooperative relay multicast networks in cellular system

Key Laboratory Of Universal Wireless Communication, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2010-10-22 Revised:2011-02-22 Online:2011-06-30 Published:2011-06-13
Contact: WANG Cheng-jin E-mail:wcj@bupt.edu.cn
Supported by:
Hi-Tech Research and Development Program (Chinese National 863 Program)

摘要/Abstract

摘要：

For cooperative relay multicast networks, the general cross-layer optimization approaches converge to the global optimal value slowly because of the large quantity of relay terminals. However, the mobility of relay terminals requires quick converging optimization strategies to refresh the relay links frequently. Based on the capacity analysis of multiple relay channels, an improved cross-layer optimization scheme is proposed to resolve this problem, in which the bound of the relay selecting region is determined as a pre-processing. Utilizing the primal-dual algorithm, a cross-layer framework with pre-processing optimizes both the relay terminal selection and power allocation with quick convergence. The simulation results prove the effectiveness of the proposed algorithm.

关键词:

cooperative relay, cross-layer optimization, pre-processing, multicast

Abstract:

Key words:

cooperative relay, cross-layer optimization, pre-processing, multicast

中图分类号:

TN925

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Optimization scheme with pre-processing for cooperative relay multicast networks in cellular system

Optimization scheme with pre-processing for cooperative relay multicast networks in cellular system

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