Successive SLNR Based Precoding for Downlink Multi-User MIMO Systems

In this paper, we propose a new downlink multi-user multiple-input multiple-output (MIMO) precoding scheme based on maximizing the successive signal to leakage plus noise ratio (SSLNR). The work is motivated by the precoding scheme developed by Sadek, Tarighat and Sayed by maximizing the signal to l...

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Bibliographic Details
Published in2011 IEEE International Conference on Communications (ICC) pp. 1 - 5
Main Authors Xunyong Zhang, Chen He, Lingge Jiang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Bit error rate
Downlink
Interference
MIMO
Receiving antennas
Signal to noise ratio
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Summary:In this paper, we propose a new downlink multi-user multiple-input multiple-output (MIMO) precoding scheme based on maximizing the successive signal to leakage plus noise ratio (SSLNR). The work is motivated by the precoding scheme developed by Sadek, Tarighat and Sayed by maximizing the signal to leakage plus noise ratio (SLNR), which does not impose any restriction on the number of antennas at the transmitter and receiver. In our proposed scheme, dirty paper coding (DPC) is applied to cancel the known leakages, so SLNR can be calculated only using the unknown leakages. The proposed scheme has no restriction of the number of antennas as the conventional SLNR scheme. In addition, the proposed scheme decreases the complexity of the receivers compared with the conventional SLNR scheme. Simulations show that the proposed scheme has superior bit error rate (BER) performance over the conventional SLNR scheme.
ISBN:9781612842325
1612842321
ISSN:1550-3607
1938-1883
DOI:10.1109/icc.2011.5963445