Title :
Investigation on multiuser diversity in spectrum sharing based cognitive radio networks
Author :
Zhang, Rui ; Liang, Ying-Chang
Author_Institution :
Inst. for Infocomm Res., A*STAR, Singapore, Singapore
fDate :
2/1/2010 12:00:00 AM
Abstract :
A new form of multiuser diversity, named 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.
Keywords :
cognitive radio; diversity reception; multi-access systems; radio links; radiofrequency interference; spread spectrum communication; cognitive radio network; ergodic throughput; multiuser diversity gain; multiuser interference diversity; mutual interference; opportunistic communications; primary radio links; spectrum sharing; Chromium; Cognitive radio; Diversity methods; Fading; H infinity control; Interference constraints; Power system modeling; Radio transmitters; Throughput; Wireless communication; Cognitive radio, interference temperature, multiuser diversity, spectrum sharing;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.02.091649
