Energy-Efficient Node Selection for Cooperative Spectrum Sensing with Spatial Correlation

被引：0
|
作者：
Mohammadi, Jafar [1 ,2 ]
Penna, Federico [2 ]
Stanczak, Slawomir [1 ,2 ]
Kasparick, Martin [2 ]
机构：
[1] Tech Univ Berlin, Heinrich Hertz Lehrstuhl Informat Theorie & Theor, Einsteinufer 27, D-10587 Berlin, Germany
[2] Fraunhofer Heinrich Hertz Inst, D-10587 Berlin, Germany
来源：
2013 ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS | 2013年
关键词：
Correlated signal detection; spectrum sensing; likelihood ratio test; MULTIPLE ANTENNAS; PERFORMANCE; SYSTEMS;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper we investigate the node placement for a wireless sensor network deployed to sense the spectrum with spatial channel correlation. The goal is to find the best node constellation, such that the given power constraints are satisfied and the best sensing performance is acquired. We derive the analytical expression for probability of detection (P-D) of the optimal test statistic as the measure of performance. Then we develop two heuristic methods to solve the non-convex optimization problem. Using numerical simulations the analytical expressions for P-D is justified, as well as, the performance of the two proposed suboptimal approaches.
引用
收藏
页码：1011 / 1015
页数：5
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