NDLI: Adaptive Reduced-Rank MIMO Decoder for Military Communications

Content Provider	IEEE Xplore Digital Library
Author	Honan, P.J. Tureli, U. Zhongren Cao
Copyright Year	2006
Description	Author affiliation: Dept. of Electrical Engineering & Computer Engineering, Stevens Institute of Technology, Hoboken, NJ 07030. email: utureli@stevens.edu (Tureli, U.) \|\| California Institute for Telecommunications & Information Technology, University of California, San Diego. email: zcao@soe.ucsd.edu (Zhongren Cao) \|\| Digital Design Solution, Inc., Clifton, NJ 07013. email: honan@onebox.com (Honan, P.J.)
Abstract	We propose an adaptive reduced-rank solution for decoding spatial multiplexed multiple-input multiple-output (MIMO) wireless communications based on the multi-stage Wiener filter (MSWF). Spectral efficiency gains promised by spatial multiplexing schemes, such as vertical Bell Labs space time (V-BLAST) and space-division multiple access (SDMA), are difficult to realize for military applications where extreme channel conditions such as co-channel interference and intentional jamming can be expected. We show that the MSWF combined with successive interference (SIC) for spatial demultiplexing leads to significant signal subspace compression or rank-reduction. We propose for the MSWF-SIC a novel rank-reduction stopping rule that adapts to channel correlation and interference converges much faster than full rank methods permitting shorter training length and robustness to co-channel interference and jamming. Also, significant computational reduction is realized making this method a good candidate for portable applications where computational resources are limited. Bit error rate (BER) versus SNR for the correlated channel and for co-channel interference and SINR versus the MSWF rank-reduction and length of training interval are presented.
Starting Page	1
Ending Page	6
File Size	6859975
Page Count	6
File Format	PDF
ISBN	142440617X
DOI	10.1109/MILCOM.2006.302062
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-10-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO Decoding Military communication Interchannel interference Jamming Portable computers Bit error rate Wireless communication Wiener filter Multiaccess communication
Content Type	Text
Resource Type	Article

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