Investigation on Multiuser Diversity in Spectrum Sharing Based Cognitive Radio Networks

Details Investigation on Multiuser Diversity in Spectrum Sharing Based Cognitive Radio Networks Investigation on Multiuser Diversity in Spectrum Sharing Based Cognitive Radio Networks

2008-09-12

arxiv.org/abs/0809.2147v3

Computer Science

Information Theory

to appear in IEEE Communication Letters

Scientific paper

A new form of multiuser diversity, named \emph{multiuser interference diversity}, is investigated for opportunistic communications in cognitive radio (CR) networks by exploiting the mutual interference between the CR and the existing primary radio (PR) links. The multiuser diversity gain and ergodic throughput are analyzed for different types of CR networks and compared against those in the conventional networks without the PR link.

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