Efficient multi-user detection scheme for overloaded group-orthogonal MC-CDMA systems
Efficient multi-user detection scheme for overloaded group-orthogonal MC-CDMA systems
- Author(s): P. Wang and T. Le-Ngoc
- DOI: 10.1049/iet-com:20070304
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- Author(s): P. Wang 1 and T. Le-Ngoc 1
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View affiliations
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Affiliations:
1: Department of ECE, McGill University, Montréal, Canada
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Affiliations:
1: Department of ECE, McGill University, Montréal, Canada
- Source:
Volume 2, Issue 2,
February 2008,
p.
346 – 352
DOI: 10.1049/iet-com:20070304 , Print ISSN 1751-8628, Online ISSN 1751-8636
An efficient multi-user detection scheme for overloaded MC-CDMA systems is presented. The proposed detection scheme for overloaded systems achieves the optimal performance for constant-modulus modulation schemes, for example MPSK, and provides near-optimal performance for non-constant-modulus modulation, for example M-QAM. Moreover, it has overall lower complexity than the other optimal detection algorithms, especially suitable for group-orthogonal MC-CDMA systems, where group-based technique keeps multi-user receiver size relatively small.
Inspec keywords: code division multiple access; multiuser detection; quadrature amplitude modulation; phase shift keying
Other keywords:
Subjects: Signal detection; Modulation and coding methods; Multiple access communication
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