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A System Cost Minimization Through Differential Antenna Placement in Multi-radio Wireless Mesh Networks  

Lee, Ji-Soo (School of Electronic Engineering, Soongsil University)
Yoo, Myung-Sik (School of Electronic Engineering, Soongsil University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.47, no.7, 2010 , pp. 51-58 More about this Journal
Abstract
Wireless Mesh Network has drawn much attention due to wide area service coverage with low system cost. However, there is a bottleneck problem in wireless mesh network since the traffic is aggregated into a gateway. Placement of multi-radio can easy the bottleneck problem, but without careful design it results in unnecessary system cost increasement. In this paper, we propose a system cost minimization through differential antenna placement where optimum antenna placement is determined by the required wireless link capacity. With CPLEX program, optimum number of antennae is determined as a function of local user traffic and gateway capacity. From numerical analysis, it is confirmed that our proposed model can solve bottleneck problem, and at the same time save the system cost.
Keywords
Wireless Mesh Network; Cost; Minimization; Multi-radio; MIP(Mixed Integer Programming);
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