How Many Bits Should Be Reported In Quantized Cooperative Spectrum Sensing?

Author

Nhan Nguyen-Thanh ; Ciblat, Philippe ; Maleki, Sina ; Van-Tam Nguyen

Author_Institution

Telecom ParisTech, Paris, France

Volume

4

Issue

5

fYear

2015

Firstpage

465

Lastpage

468

Abstract

We introduce an algorithm for optimizing sensing parameters including the number of sensing samples and the number of reporting bits of a quantization-based cooperative spectrum sensing scheme in cognitive radio networks. This is obtained by maximizing the network throughput subject to a target detection probability. With Rayleigh fading and energy detector, the proposed algorithm simultaneously optimizes the number of sensing samples at a local node, the number of bits for quantizing local sensing data and the global threshold at a fusion center.

Keywords

Rayleigh channels; cognitive radio; cooperative communication; object detection; probability; quantisation (signal); radio spectrum management; signal detection; Rayleigh fading; cognitive radio network throughput maximisation; energy detector; fusion center; quantization-based cooperative spectrum sensing scheme; target detection probability; Cognitive radio; Fading; Optimization; Quantization (signal); Sensors; Signal to noise ratio; Throughput; Cognitive radio; cognitive radio; cooperative; multibit decision; quantization; sensing-throughput tradeoff; spectrum sensing;

fLanguage

English

Journal_Title

Wireless Communications Letters, IEEE

Publisher

ieee

ISSN

2162-2337

Type

jour

DOI

10.1109/LWC.2015.2437879

Filename

7113822