NDLI: An efficient sphere decoding algorithm for rank-deficient OFDM/SDMA systems

Content Provider	IEEE Xplore Digital Library
Author	Shahnaz, K.V. Ali, C.K.
Copyright Year	2014
Description	Author affiliation: Dept. of Electron. & Commun. Eng., Nat. Inst. of Technol., Calicut, India (Shahnaz, K.V.; Ali, C.K.)
Abstract	The design of efficient receivers for orthogonal frequency division multiplexing/space division multiple access (OFDM/SDMA) channels remain a challenging task especially when the number of mobile stations (MSs) transmitting exceed base station (BS) antennas. The benchmark performance is achieved by Maximum Likelihood (ML) detector at the cost of computational complexity that exponentially increases with spatial and temporal dimension. As an alternative to reduce complexity without compromising the performance, this paper discusses a simple and effective Fincke and Pohst Sphere Decoding (FP-SD) algorithm which incorporates a pseudo-antenna augmentation scheme to handle a rank-deficient channel. The work also explains how suitable radius selection affects the performance.
Starting Page	2201
Ending Page	2204
File Size	198720
Page Count	4
File Format	PDF
ISBN	9781479930784
e-ISBN	9781479930807
DOI	10.1109/ICACCI.2014.6968573
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-24
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer aided software engineering Rank-deficient SDMA Underdetermined OFDM Noise Transmitting antennas Sphere Decoding Search problems Vectors Complexity theory Multiuser Detection Detectors
Content Type	Text
Resource Type	Article

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