Title :
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
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;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2015.2437879
