Cooperative Spectrum Sensing Using Random Matrix Theory

Details Cooperative Spectrum Sensing Using Random Matrix Theory Cooperative Spectrum Sensing Using Random Matrix Theory

2008-03-05

arxiv.org/abs/0803.0597v1

Computer Science

Information Theory

Submitted to International Symposium on Wireless Pervasive Computing 2008

Scientific paper

In this paper, using tools from asymptotic random matrix theory, a new cooperative scheme for frequency band sensing is introduced for both AWGN and fading channels. Unlike previous works in the field, the new scheme does not require the knowledge of the noise statistics or its variance and is related to the behavior of the largest and smallest eigenvalue of random matrices. Remarkably, simulations show that the asymptotic claims hold even for a small number of observations (which makes it convenient for time-varying topologies), outperforming classical energy detection techniques.

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