Sciweavers

TSP
2012
11 years 12 months ago
Robust Multicast Beamforming for Spectrum Sharing-Based Cognitive Radios
Abstract—We consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive...
Yongwei Huang, Qiang Li, Wing-Kin Ma, Shuzhong Zha...
WIOPT
2011
IEEE
12 years 8 months ago
Portfolio optimization in secondary spectrum markets
—In this paper, we address the spectrum portfolio optimization (SPO) question in the context of secondary spectrum markets, where bandwidth (spectrum access rights) can be bought...
Praveen Kumar Muthuswamy, Koushik Kar, Aparna Gupt...
TCOM
2008
115views more  TCOM 2008»
13 years 4 months ago
Differentiated rate scheduling for the down-link of cellular systems
We consider the problem of differentiated rate scheduling for the downlink (i.e., multi-antenna broadcast channel), in the sense that the rates required by different users must sat...
Amir F. Dana, Masoud Sharif, Ali Vakili, Babak Has...
CORR
2007
Springer
116views Education» more  CORR 2007»
13 years 4 months ago
Cooperative game theory and the Gaussian interference channel
—In this paper we discuss the use of cooperative game theory for analyzing interference channels. We extend our previous work, to games with N players as well as frequency select...
Amir Leshem, Ephraim Zehavi