Multi-Feedback Successive Interference Cancellation with Dynamic Log-Likelihood-Ratio Based Reliability Ordering
Conference: ISWCS 2013 - The Tenth International Symposium on Wireless Communication Systems
08/27/2013 - 08/30/2013 at Ilmenau, Deutschland
Proceedings: ISWCS 2013
Pages: 5Language: englishTyp: PDF
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Authors:
Hesketh, Thomas; Lamare, Rodrigo C. de (Communications Research Group, Department of Electronics, University of York, York, YO10 5DD, United Kingdom)
Li, Peng (Communications Research Laboratory, TU-Ilmenau. Helmholtzplatz 2, 98684 Ilmenau, Germany)
Wales, Stephen (Roke Manor Research Ltd., Romsey, Hampshire, SO51 0ZN, United Kingdom)
Abstract:
In this paper, we propose a successive interference cancellation (SIC) detector which utilises multiple feedback (MF) candidates for cancellation stages and a dynamic log-likelihood- ratio (LLR)-based dynamic reliability ordering (RO) of the cancellation stages in a multiple-input multiple-output (MIMO) system. The proposed multi-feedback reliability-ordered SIC (MF-RO-SIC) detector’s performance is compared with VBLAST based techniques for MF, the dynamic LLR RO without MF and the maximum likelihood (ML) detector. The results show that the MF-RO-SIC can outperform the MF-SIC and the RO-SIC in bit error rate (BER) performance, with the ability to tune the performance by altering the shadowing criterion values.