Research Article
Uncoordinated Beamforming for Cognitive Networks
@INPROCEEDINGS{10.4108/icst.crowncom.2011.245874, author={Simon Yiu and Chae Chan-Byoung and Kai Yang and Doru Calin}, title={Uncoordinated Beamforming for Cognitive Networks}, proceedings={6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2012}, month={5}, keywords={cognitive network beamforming mimo interference cancelation}, doi={10.4108/icst.crowncom.2011.245874} }- Simon Yiu
Chae Chan-Byoung
Kai Yang
Doru Calin
Year: 2012
Uncoordinated Beamforming for Cognitive Networks
CROWNCOM
IEEE
DOI: 10.4108/icst.crowncom.2011.245874
Abstract
In this paper, we propose jointly-optimized beamforming algorithms for cognitive networks to maximize the achievable rates assuming single information stream in both primary and secondary links. The primary and cognitive users share the same spectrum and are equipped with multiple antennas. No coordination is required between the primary and cognitive users and the interference cancellation is done at the cognitive user. Specifically, the beamforming vectors of the cognitive link are designed to maximize the achievable rate under the condition that the interference both at the primary and cognitive receivers is completely nullified. The sum rate performance of the proposed algorithms is evaluated by Monte Carlo simulations.
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