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Efficient Symbol Detector for MIMO Communication Systems

Authors:
Soohyun Jang
Yunho Jung

Keywords: MIMO; ML; multi-stage pipeline; spatial diversity; spatial multiplexing; symbol detector

Abstract:
In this paper, an area-efficient symbol detector is proposed for multiple-input multiple-output (MIMO) communication systems with two transmit and two receive antennas. The proposed symbol detector can support both the spatial multiplexing mode and spatial diversity mode in a single hardware, and shows the optimal maximum likelihood (ML) performance. By applying the multi-stage pipeline structure and using the complex multiplier based on polar-coordinate, the complexity of the proposed architecture is dramatically decreased. The proposed symbol detector was designed in hardware description language (HDL) and synthesized to gate-level circuits using 0.13um CMOS standard cell library. With the proposed architecture, the total logic gate count for the detector is 393K, which is reduced by 57% compared with the conventional architecture.

Pages: 182 to 187

Copyright: Copyright (c) IARIA, 2011

Publication date: June 19, 2011

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-140-3

Location: Luxembourg City, Luxembourg

Dates: from June 19, 2011 to June 24, 2011