Area Spectral Efficiency of Cooperative Network With Opportunistic Relaying

被引:0
作者
Zhang, Lei [1 ]
Hasna, Mazen O. [2 ]
Yang, Hong-Chuan [1 ]
机构
[1] Univ Victoria, Dept Elec & Comp Engr, Victoria, BC V8W 3P6, Canada
[2] Qatar Univ, Dept Elec Engr, Doha, Qatar
来源
2012 IEEE 75TH VEHICULAR TECHNOLOGY CONFERENCE (VTC SPRING) | 2012年
关键词
cooperative network; area spectral efficiency; opportunistic relay; WIRELESS; DIVERSITY; SELECTION;
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
In this paper, we investigate the area spectral efficiency (ASE) in a three-node cooperative network with opportunistic relaying. On one hand, in conventional cellular network, ASE is defined to be the average data rate per unit bandwidth per unit area supported by a base station. On the other hand, in cooperative network, since there is no such a central base station, we redefine ASE to be the average data rate per unit bandwidth within a particular area, in which simultaneous transmissions are not allowed. In addition, to maximize the instantaneous capacity between the source and the destination, we apply a transmission mode selection criterion to determine whether the direct transmission or the multi-hop relay transmission is utilized. We derive the mathematical expression of ASE with the consideration of the relay node location and the impact of path-loss and fading effects. We show through selected numerical examples the effect of relay node position on the performance metric of ASE.
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页数:5
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