NDLI: Low effort MIMO eetector for frequency selective indoor channels

Content Provider	IEEE Xplore Digital Library
Author	Chouayakh, M. Knopp, A. Ahokposs, C. Lankl, B.
Copyright Year	2008
Description	Author affiliation: Inst. for Commun. Eng., Munich Univ. of the Bundeswehr, Neubiberg (Chouayakh, M.; Knopp, A.; Ahokposs, C.; Lankl, B.)
Abstract	A new MIMO detector for frequency selective indoor channels is proposed. The detector is based on a two-stage detection followed by a decision feedback equalizer (DFE). The first detection stage is assured by a linear equalizer subsequently followed by a decision unit. The second step is a reduced search (RS) around the solution acquired by the linear equalization, which will be performed in an efficient way at the different transmitted data streams. The RS will be adjusted depending on the search probability at each level. The DFE is applied in order to remove the effect of the inter symbol interferences (ISI) caused by the channel dispersion as it has been observed in the indoor measurements. The RS method provides a near ML performance while it demands a fixed computational effort which is determined by the number of operations and limited by the hardware resources. Compared to some of the most important MIMO detectors, such as for example V-BLAST and sphere decoder, in simulations as well as in field measurements our approach exhibits a near ML performance in terms of BER while its computational effort always remains distinctly lower.
Starting Page	1
Ending Page	5
File Size	209883
Page Count	5
File Format	PDF
ISBN	9783800731022
DOI	10.1109/EW.2008.4623853
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-22
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	VDE V erlag GmbH
Subject Keyword	Antenna measurements Equalizers Noise Line-of-sight Detectors frequency selective channel MIMO Frequency measurement RS detector Mutual information
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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