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Performance of RS coded DS-CDMA using noncoherent M-ary orthogonal modulation over multipath fading channels

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4 Author(s)
Lie-Liang Yang ; Dept. of Electron. & Comput. Sci., Southampton Univ., UK ; Kai Yen ; Dillinger, M. ; Hanzo, L.

The performance of Reed-Solomon (RS) coded direct-sequence code division multiple-access (DS-CDMA) systems using noncoherent M-ary orthogonal modulation is investigated over multipath Rayleigh fading channels. Equal gain combining (EGC) diversity reception is invoked and the related performance is evaluated for both uncoded and RS-coded DS-CDMA systems. `Errors-and-erasures' decoding is considered, where the erasures are based on Viterbi's (1982) so-called ratio threshold test (RTT). The performance of the `errors-and-erasures' decoding technique employing the RTT is compared to that of `error-correction-only' decoding over multipath Rayleigh fading channels. The numerical results show that when using RTT-based `errors-and-erasures' decoding, RS codes of a given code rate can achieve a higher coding gain than without erasure information

Published in:

Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on  (Volume:1 )

Date of Conference:

2000