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Low-dimensional minimum leakage multiuser beamforming in a multicell system

conference contribution
posted on 2013-01-01, 00:00 authored by Jinho ChoiJinho Choi, J Ha
In this paper, we have studied multiuser beamforming where beamforming and power allocation are carried out at each cell without cooperation between base stations in a time division duplexing (TDD)-based multicell system. At each base station that is equipped with an antenna array, multiple beams and transmission powers for downlink transmissions are optimized to minimize the interference leakage to other cells with signal-to-interference-plus-noise ratio (SINR) constraints for users in its cell. In order to reduce the computational complexity for beamforming at base stations, a low-dimensional beamforming approach has been proposed at the expense of degraded performance. Since an iterative algorithm is used to optimize beamforming vectors, the computational complexity can be significantly reduced if low-dimensional beamforming is employed for a large antenna array. Due to noncooperative and low-complexity beamforming, the proposed approach can be effectively employed when base stations have limited complexity and backhaul links do not exist or are limited.

History

Pagination

454-458

Location

Jeju, South Korea

Start date

2013-10-14

End date

2013-10-16

ISSN

2162-1233

eISSN

2162-1241

ISBN-13

9781479906987

Language

eng

Publication classification

E1.1 Full written paper - refereed

Copyright notice

2013, IEEE

Editor/Contributor(s)

[Unknown]

Title of proceedings

ICTC 2013 : Future creative convergence technologies for new ICT ecosystems : Proceedings of the 2013 International Conference on ICT Convergence

Event

IEEE Communications Society. International Conference (2013 : Jeju, South Korea)

Publisher

Institute of Electrical and Electronics Engineers

Place of publication

Piscataway, N.J.

Series

IEEE Communications Society International Conference

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