DocumentCode :
2456558
Title :
Multi-Cell Beamforming under Per-Cell Power Constraints
Author :
Hafeez, Abdulrauf ; Guey, Jiann-Ching ; Furuskär, Anders ; Skillermark, Per
Author_Institution :
Ericsson Res., Research Triangle Park, NC, USA
fYear :
2010
fDate :
6-9 Sept. 2010
Firstpage :
1
Lastpage :
5
Abstract :
In this paper, we consider the problem of joint adaptive beamforming from multiple Access Points (APs), equipped with array antennas, to multiple single-antenna User Equipments (UEs). We derive an iterative algorithm for Multi-Cell Beam-Forming (MCBF) under per-cell power constraints and the constraint that a UE may receive data transmission from a single AP. The scheme is suitable for coordinated beamforming downlink transmission in a Coordinated Multi-Point (CoMP) cellular network. Simulation results indicate that as compared to uncoordinated transmission by means of a Grid of Beams (GoB) based Space Division Multiple Access (SDMA) scheme, MCBF offers much higher throughput for cell-edge UEs. For a single cluster of nine sectorized cells with four-element antenna arrays in an urban macro-cellular environment, MCBF obtains a 13 fold increase in 5 percentile user throughput at 2 bits/s/Hz/sector cell throughput as compared to GoB-SDMA.
Keywords :
antenna arrays; array signal processing; cellular radio; data communication; space division multiple access; data transmission; iterative algorithm; multi-cell beamforming; multiple access points; multiple single-antenna user equipments; per-cell power constraints; space division multiple access; Array signal processing; Downlink; Interference; Joints; Resource management; Signal to noise ratio; Throughput;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Vehicular Technology Conference Fall (VTC 2010-Fall), 2010 IEEE 72nd
Conference_Location :
Ottawa, ON
ISSN :
1090-3038
Print_ISBN :
978-1-4244-3573-9
Electronic_ISBN :
1090-3038
Type :
conf
DOI :
10.1109/VETECF.2010.5594088
Filename :
5594088
Link To Document :
بازگشت