title   
  

Distributed decision fusion over fading channels in hierarchical wireless sensor networks

Eritmen, Kayhan and Keskinöz, Mehmet (2014) Distributed decision fusion over fading channels in hierarchical wireless sensor networks. Wireless Networks, 20 (5). pp. 987-1002. ISSN 1022-0038 (Print) 1572-8196 (Online)

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Official URL: http://dx.doi.org/10.1007/s11276-013-0649-y

Abstract

In this work, we investigate distributed decision fusion in hierarchical wireless sensor networks that are degraded by fading and noise. With the use of the complete fading channel state information (CSI), we first derive the likelihood ratio test (LRT) based optimum fusion rule, which we call LRT–CSI. Then, we relax the use of the complete CSI and only the exact phase information is employed together with channel envelope statistics (CS), and we develop another LRT based fusion rule named LRT–CS, which is computationally simpler to implement compared to LRT–CSI. Finally, we analyze the detection performance of all the proposed fusion rules through extensive numerical results.

Item Type:Article
Uncontrolled Keywords:Distributed detection; Fading; Hierarchical topology; Wireless sensor networks
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
ID Code:22722
Deposited By:Mehmet Keskinöz
Deposited On:21 Jan 2014 21:57
Last Modified:05 Dec 2014 11:25

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