On Orientations of Directional Antennas in Wireless Sensor Network

被引：0
|
作者：
Pham, Minh H. [1 ]
Qiu, Wanzhi [1 ]
Skafidas, Stan [1 ]
Thoms, Gavin [1 ]
机构：
[1] Natl ICT Australia, Melbourne, Vic 3010, Australia
来源：
2008 THIRD INTERNATIONAL CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA, VOLS 1-3 | 2008年
关键词：
sensor network; channel capacity; Shannon capacity; directional antenna; global optimization; antenna orientation;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper presents a model for the total Shannon capacity of a network as a function of antenna orientations. The resulting function is neither concave nor convex and is multi-extrema with multiple local optima. An optimum solution for the orientations of the directional antennas leads to the global maximization of the total channel capacity. This global optimization problem cannot be solved by classical nonlinear programming technique. The objective function is shown to be Lipschitzian and is optimized by a Lipschitz optimization algorithm. The algorithm is a realization of the generic branch and bound methodology. Simulation results are reported and discussed.
引用
收藏
页码：291 / 296
页数：6
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