'Errors-and-Erasures' decoding performance of RS coded DS-CDMA using M-ary orthogonal signalling
'Errors-and-Erasures' decoding performance of RS coded DS-CDMA using M-ary orthogonal signalling
In this contribution we investigate the performance of RS coded DS-CDMA using M-ary orthogonal signalling over multipath Rayleigh fading channels. 'Errors-And-Erasures (EAE)' RS decoding is considered, where erasures are declared based on the joint Maximum Output and Ratio Threshold Test (MOR-TT). Two classes of diversity reception techniques suitable for noncoherent M-ary detection are invoked, namely either Equal Gain Combining (EGC) or Selection Combining (SC) and their related performance is evaluated for both uncoded and coded DS-CDMA systems. The performance of the proposed MOR-TT technique is compared to that of the Ratio Threshold Test (RTT) and the Output Threshold Test (OTT), as well as that of 'Error-Correction-Only (ECO)' decoding. The numerical results show that when using EAE decoding, RS codes of a given code rate are capable of achieving a Significantly higher coding gain than without erasure information. Furthermore, the MOR-TT technique outperforms both the RTT and the OTT techniques.
1467-1471
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
October 2001
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, L-L. and Hanzo, L.
(2001)
'Errors-and-Erasures' decoding performance of RS coded DS-CDMA using M-ary orthogonal signalling.
VTC'2001 (Fall), Atlantic City, United States.
07 - 10 Oct 2001.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this contribution we investigate the performance of RS coded DS-CDMA using M-ary orthogonal signalling over multipath Rayleigh fading channels. 'Errors-And-Erasures (EAE)' RS decoding is considered, where erasures are declared based on the joint Maximum Output and Ratio Threshold Test (MOR-TT). Two classes of diversity reception techniques suitable for noncoherent M-ary detection are invoked, namely either Equal Gain Combining (EGC) or Selection Combining (SC) and their related performance is evaluated for both uncoded and coded DS-CDMA systems. The performance of the proposed MOR-TT technique is compared to that of the Ratio Threshold Test (RTT) and the Output Threshold Test (OTT), as well as that of 'Error-Correction-Only (ECO)' decoding. The numerical results show that when using EAE decoding, RS codes of a given code rate are capable of achieving a Significantly higher coding gain than without erasure information. Furthermore, the MOR-TT technique outperforms both the RTT and the OTT techniques.
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lly-lh-vtcfall-2001.pdf
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Published date: October 2001
Additional Information:
Event Dates: 7-10 October 2001 Organisation: IEEE Address: Atlantic City, USA
Venue - Dates:
VTC'2001 (Fall), Atlantic City, United States, 2001-10-07 - 2001-10-10
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 257132
URI: http://eprints.soton.ac.uk/id/eprint/257132
PURE UUID: 21fe2936-4a4f-4231-8120-3926b19cc463
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Date deposited: 08 Jan 2004
Last modified: 18 Mar 2024 02:49
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Contributors
Author:
L-L. Yang
Author:
L. Hanzo
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