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ASIC Implementation Comparison of SIC and LSD Receivers for MIMO-OFDM

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Title: ASIC Implementation Comparison of SIC and LSD Receivers for MIMO-OFDM
Author: Ketonen, Johanna; Myllylä, Markus; Juntti, Markku; Cavallaro, Joseph R.
Type: Conference Paper
Publisher: IEEE
Citation: J. Ketonen, M. Myllylä, M. Juntti and J. R. Cavallaro,"ASIC Implementation Comparison of SIC and LSD Receivers for MIMO-OFDM," in 42nd Asilomar Conference on Signals, Systems and Computers, 2008, pp. 1881-1885.
Abstract: MIMO-OFDM receivers with horizontal encoding are considered in this paper. The successive interference cancellation (SIC) algorithm is compared to the K-best list sphere detector (LSD). A modification to the K-best LSD algorithm is introduced. The SIC and K-best LSD receivers are designed for a 2 x 2 antenna system with 64-quadrature amplitude modulation (QAM). The ASIC implementation results for both architectures are presented. The K-best LSD outperforms the SIC receiver in bad channel conditions but the SIC receiver performs better in channels with less correlated MIMO streams. The latency of the K-best LSD is large due to the high modulation order and list size. The throughput of the SIC receiver is more than 6 times higher than that of the K-best LSD.
Date Published: 2008-10-01

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  • CMC Publications [275 items]
    Publications by Rice Faculty and graduate students in multimedia communications