A low complexity uplink multiuser MIMO detecting algorithm based on BQRD

DOI

10.2991/iccsee.2013.368How to use a DOI?

Keywords

uplink multiuser MIMO system, Co-Channel Interferences, multiuser channel matrix decomposition

Abstract

In multiuser MIMO uplink communications, it is necessary to design linear schemes that are able to suppress co-channel interferences(CCIs). Block diagonalization(BD), which can achieve good CCIs suppression, has been extensively studied to solve the issue. However, with the scheme we cannot obtain extra diversity gain due to the null steering at the base station. In this paper, we propose a linear block QR decomposition(BQRD) which transforms the multiuser channel to a block upper triangular structure based on Gram-Schmidt orthonormalization and can obtain more diversity gain than BD. Its error rate performance is evaluated using computer simulations. The result shows that, the proposed scheme provides excellent performance with low complexity. A optimal ordering criterion is proposed at last to do full study of BQRD scheme. Simulation results show that the BQRD with the optimal ordering proposed achieves much better performance than the non-ordering one.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jun MA
AU  - Da-ming WANG
PY  - 2013/03
DA  - 2013/03
TI  - A low complexity uplink multiuser MIMO detecting algorithm based on BQRD
BT  - Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013)
PB  - Atlantis Press
SP  - 1461
EP  - 1464
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccsee.2013.368
DO  - 10.2991/iccsee.2013.368
ID  - MA2013/03
ER  -