A Cooperative MIMO Transmission Scheme for Cluster-based Wireless Sensor Networks

被引：0
|
作者：
Ding Jie [1 ]
Liu Danpu [1 ]
Wu Huari [2 ]
机构：
[1] Beijing Univ Posts & Telecommun, Minist Educ, Key Lab Universal Wireless Commun, Beijing 100876, Peoples R China
[2] Beijing Acad Agr & Forestry Sci, Beijing 100097, Peoples R China
来源：
CHINA COMMUNICATIONS | 2010年 / 7卷 / 05期
关键词：
energy efficiency; virtual MIMO; V-BLAST; cluster; wireless sensor networks;
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：
Wireless sensor network is becoming more and more popular in recent years, but energy-constrained characteristic of sensor nodes is one of the critical issues that we must consider in system design. In this paper, a cluster-based virtual V-BLAST transmission scheme is proposed to achieve energy savings for energy-constrained wireless sensor networks. In the proposed scheme, instead of using cluster member as cooperative nodes, multiple cluster heads cooperate to form virtual antenna array so that V-BLAST based virtual MIMO transmission can be implemented. Based on the communication energy consumption model, a way to optimize the parameters for the scheme is given. In addition, detailed simulation is performed to evaluate the performance of the proposed scheme for both densely and sparsely deployed sensor networks. Theoretical analysis and simulation results verify the energy efficiency of the proposed scheme.
引用
收藏
页码：14 / 22
页数：9
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