Title :
Sum-Rate Based Coordinated Beamforming in Multicell Multi-Antenna Wireless Networks
Author :
Che, E. ; Tuan, H.D.
Author_Institution :
Fac. of Eng. & Inf. Technol., Univ. of Technol., Sydney, NSW, Australia
Abstract :
This paper is concerned with sum rate maximization problem (program) of coordinated downlink beamforming in multicell multi-antenna wireless networks, which has never been adequately considered in literature due to its computational difficulty. It is shown to be efficiently solved by means of d.c. (difference of two convex functions/sets) programming. The important advantages of our proposed algorithm are: guaranteed convergence, low computational complexity, and excellent performance.
Keywords :
array signal processing; cellular radio; mathematical programming; mobile antennas; radio networks; coordinated downlink beamforming; d.c. programming; low computational complexity; multicell multi-antenna wireless networks; sum rate maximization problem; sum-rate based coordinated beamforming; Array signal processing; Base stations; Convex functions; Linear programming; Optimization; Vectors; Wireless networks; Multicell multi-antenna network; coordinated beamforming; d.c. optimization; sum rate maximization;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.2316147
