DocumentCode :
2412689
Title :
Beamforming Design Based on Virtual SINR Maximization for Interference Networks
Author :
Park, Seok-Hwan ; Park, Haewook ; Lee, Inkyu
Author_Institution :
Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
fYear :
2011
fDate :
5-9 June 2011
Firstpage :
1
Lastpage :
5
Abstract :
In this paper, we propose beamforming techniques based on virtual signal-to-interference-plus-noise ratio (VSINR) maximization for weighted sum-rate (WSR) maximization in multiple-input single-output (MISO) interference channels. In the earlier work by Zakhour and Gesbert, it was shown that all Pareto-optimal beamformers can be expressed as a solution to the VSINR problem. However, how to choose the weight coefficients in the VSINR expression is not addressed when solving the WSR maximization problem. Thus, we provide a method of computing the weight terms to achieve a certain desired WSR maximizing point. Since the beamforming vectors in the proposed scheme should be computed as a function of global channel state information (CSI), we also propose a decentralized approach which shows a performance close to the centralized scheme with a significant reduction in the CSI exchange overhead.
Keywords :
MIMO communication; Pareto optimisation; array signal processing; radiofrequency interference; CSI exchange overhead; MISO interference channels; Pareto-optimal beamformers; WSR maximization problem; beamforming technique design; beamforming vectors; centralized scheme; decentralized approach; global channel state information; interference networks; multiple-input single-output interference channels; virtual SINR maximization; virtual signal-to-interference-plus-noise ratio maximization; weight coefficients; weighted sum-rate maximization; Array signal processing; Integrated circuits; Interference channels; Receivers; Signal to noise ratio; Transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications (ICC), 2011 IEEE International Conference on
Conference_Location :
Kyoto
ISSN :
1550-3607
Print_ISBN :
978-1-61284-232-5
Electronic_ISBN :
1550-3607
Type :
conf
DOI :
10.1109/icc.2011.5962844
Filename :
5962844
Link To Document :
بازگشت