Maximizing Lifetime in Multi-Source Multi-Relay Non-Regenerative OFDM Networks

被引：0

作者：

Zhang, Yang ^{[1
,2
]}

Li, Jiandong ^{[1
]}

Pang, Lihua ^{[1
]}

Ding, Zhi ^{[2
]}

机构：

[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China

[2] Univ Calif Davis, Electr & Comp Engn Dept, Davis, CA 95616 USA

来源：

2012 IEEE 23RD INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC) | 2012年

关键词：

Resource allocation; cooperative networks; orthogonal frequency division multiplexing; lifetime maximization; POWER ALLOCATION;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper presents a resource allocation strategy for maximizing the lifetime of amplify-and-forward (AF) dual-hop cooperative OFDM networks. The high computational complexity for optimization necessitates our study of suboptimal approaches. Our centralized scheme is implemented in two steps. Specifically, during each transmission interval, source-relay selection and subcarrier pairing can be decided according to channel state information of the relay links and residual energy information at each terminal. Next, energy-aware power loading can be solved by employing standard Lagrange techniques. Numerical examples verify the effectiveness of our proposal.

引用

页码：2259 / 2262

页数：4

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