Exploiting mobility diversity in rate adaptive CDMA networks

被引:0
|
作者
Papadaki, Katerina
Friderikos, Vasilis
Aghvami, Hamid
机构
[1] LSE, Dept Operat Res, London WC2A 2AE, England
[2] KCL, Ctr Telecommun Res, London, England
关键词
multi-rate CDMA; wireless packet multiple access; power efficiency; mobility awareness;
D O I
10.1016/j.compeleceng.2006.01.009
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
An augmented model to greedy multi-rate power control schemes is proposed that integrates mobility information to increase the optimization margins of power efficient packet transmission. The proposed model can be considered as a hierarchical multi-rate power control scheme, where current rate allocation decisions are influenced by a larger time horizon that contains information about directionality and velocity of vehicular mobile users. In this paper we integrate the mobility aware algorithm with a greedy channel rate allocation scheme to illustrate its effectiveness. Numerical investigations show that required power per transmitted packet can be reduced on average by 40% without penalizing throughput. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:65 / 77
页数:13
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