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
收藏
页码：2259 / 2262
页数：4
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