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ICASSP
2008
IEEE
13 years 11 months ago
Optimal stochastic dual resource allocation for cognitive radios based on quantized CSI
The present paper deals with dynamic resource management based on quantized channel state information (CSI) for multi-carrier cognitive radio networks comprising primary and secon...
Antonio G. Marqués, Xin Wang, Georgios B. G...
CORR
2008
Springer
87views Education» more  CORR 2008»
13 years 5 months ago
The Rate Loss of Single-Letter Characterization: The "Dirty" Multiple Access Channel
For general memoryless systems, the typical information theoretic solution - when exists - has a "single-letter" form. This reflects the fact that optimum performance ca...
Tal Philosof, Ram Zamir
TSP
2012
12 years 14 days 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...
WCNC
2010
IEEE
13 years 3 months ago
Robust Relay Precoder Design for MIMO-Relay Networks
Abstract—In this paper, we consider a robust design of MIMOrelay precoder and receive filter for the destination nodes in a non-regenerative multiple-input multiple-output (MIMO...
P. Ubaidulla, Ananthanarayanan Chockalingam
ICC
2007
IEEE
13 years 11 months ago
Robust Multibeam Opportunistic Schemes Under Quality of Service Constraints
— Scheduling in a Broadcast (BC) channel based on partial Channel State Information at the Transmitter (CSIT) is carried out in an opportunistic way, where several orthogonal bea...
Nizar Zorba, Ana I. Pérez-Neira