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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/32893

Title: Low-complexity spatial-frequency-time-domain MMSE multiuser detectors for MC DS-CDMA
Authors: LU Hoang-yang;H.-S. Hung;C.-F. Lin;C.-H. Tseng;Y.-Y. Chen
Contributors: NTOU:Department of Electrical Engineering
Date: 2010-11
Issue Date: 2012-06-18T07:47:54Z
Publisher: IEEE International Conference on Communications and Technology (ICCT)
Abstract: This paper presents three multiuser detectors
(MUDs) for the uplinks of spatial-frequency-time-domain (SFTdomain)
spread multi-carrier (MC) direct sequence code division
multiple access (DS-CDMA) systems. First, aiming at achieving
significant performance gain, we propose a joint optimum SFTdomain
MUD based on minimum mean square error (MMSE)
decision rules. Further, to reduce the computational complexity,
we decompose the SFT-domain received signal to low-dimension
signal components and propose the corresponding separate
MMSE MUDs. Complexity analysis and computer simulations
show that the joint optimum SFT-domain MMSE MUD performs
the best among the proposed schemes. Meanwhile, the separate
MMSE MUDs can provide effective performance close to that of
the joint optimum SFT-domain MMSE MUD but with a modest
computational overhead.
Relation: pp. 1-4
URI: http://ntour.ntou.edu.tw/handle/987654321/32893
Appears in Collections:[電機工程學系] 演講及研討會

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