Low-complexity robust multi-cell MISO downlink precoder design

This paper develops low-complexity design techniques for robust linear precoders suitable for various multi-cell multiple-input single-output (MISO) downlink systems. The goal is to satisfy pre-specified SINR requirements for users in multiple cells under some base station power constraints, in the...

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Bibliographic Details
Published in:Proceedings of the ... IEEE International Conference on Acoustics, Speech and Signal Processing (1998) pp. 3546 - 3550
Main Authors: Medra, Mostafa, Davidson, Timothy N.
Format: Conference Proceeding Journal Article
Language:English
Published: IEEE 01.03.2016
Subjects:
Base stations
beamforming
Channels
Computational efficiency
Conferences
Design engineering
Downlink
Electronics
Interference
Iterative algorithms
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MISO
Multi-cell
Robust
Robustness
Signal to noise ratio
User satisfaction
ISSN:2379-190X
Online Access:Get full text
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Summary:This paper develops low-complexity design techniques for robust linear precoders suitable for various multi-cell multiple-input single-output (MISO) downlink systems. The goal is to satisfy pre-specified SINR requirements for users in multiple cells under some base station power constraints, in the absence of perfect channel state information (CSI). First, we consider the case of full cooperation between base stations and derive a simple iterative algorithm that achieves the required SINRs with high probability despite the presence of channel uncertainties. Then we consider the case of distributed coordination between base stations and develop a simple iterative algorithm that requires only very limited communication among the base stations. Our simulation results demonstrate that substantial robustness can be obtained at a low computational cost.
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ISSN:2379-190X
DOI:10.1109/ICASSP.2016.7472337