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CORR
2008
Springer
155views Education» more  CORR 2008»
13 years 5 months ago
Weighted Sum Rate Optimization for Cognitive Radio MIMO Broadcast Channels
In this paper, we consider a cognitive radio (CR) network in which the unlicensed (secondary) users are allowed to concurrently access the spectrum allocated to the licensed (prim...
Lan Zhang, Yan Xin, Ying-Chang Liang
INFOCOM
2010
IEEE
13 years 3 months ago
Distributed Power Control for Cognitive User Access based on Primary Link Control Feedback
—We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary c...
Senhua Huang, Xin Liu, Zhi Ding
ICASSP
2011
IEEE
12 years 9 months ago
Decentralized support detection of multiple measurement vectors with joint sparsity
This paper considers the problem of finding sparse solutions from multiple measurement vectors (MMVs) with joint sparsity. The solutions share the same sparsity structure, and th...
Qing Ling, Zhi Tian
MOBIHOC
2010
ACM
13 years 3 months ago
Breaking bidder collusion in large-scale spectrum auctions
Dynamic spectrum auction is an effective solution to provide spectrum on-demand to many small wireless networks. As the number of participants grows, bidder collusion becomes a se...
Xia Zhou, Haitao Zheng