Acquisition performance study of single- and multi-carrier DS-CDMA over Nakagami-m fading channels
Acquisition performance study of single- and multi-carrier DS-CDMA over Nakagami-m fading channels
In this contribution we investigate and compare the initial acquisition performance of single- and multi-carrier DS-CDMA systems over multipath Nakagami-m fading channels under the hypothesis of multiple synchronous states in the uncertainty region of the PN code. The code acquisition performance is evaluated in the context of multi-carrier DS-CDMA (MC DS-CDMA), when the correlator outputs of the subcarriers associated with the same phase of the local pseudo-noise (PN) code replica are non-coherently combined using an equal gain combining (EGC) scheme. Our investigations indicate that the code acquisition performance of the MC DS-CDMA scheme is better, than that of the single-carrier DS-CDMA scheme over the multipath Nakagami-m fading channels encountered. However, if the detection threshold was set inappropriately, the performance might be degraded, even if the channel quality improves.
2460-2464
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
May 2001
Yang, L-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Yang, L-L. and Hanzo, L.
(2001)
Acquisition performance study of single- and multi-carrier DS-CDMA over Nakagami-m fading channels.
VTC'2001 (Spring), , Rhodes, Greece.
06 - 09 May 2001.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this contribution we investigate and compare the initial acquisition performance of single- and multi-carrier DS-CDMA systems over multipath Nakagami-m fading channels under the hypothesis of multiple synchronous states in the uncertainty region of the PN code. The code acquisition performance is evaluated in the context of multi-carrier DS-CDMA (MC DS-CDMA), when the correlator outputs of the subcarriers associated with the same phase of the local pseudo-noise (PN) code replica are non-coherently combined using an equal gain combining (EGC) scheme. Our investigations indicate that the code acquisition performance of the MC DS-CDMA scheme is better, than that of the single-carrier DS-CDMA scheme over the multipath Nakagami-m fading channels encountered. However, if the detection threshold was set inappropriately, the performance might be degraded, even if the channel quality improves.
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Published date: May 2001
Additional Information:
Abstract page 265 CD Rom, Paper 534
Venue - Dates:
VTC'2001 (Spring), , Rhodes, Greece, 2001-05-06 - 2001-05-09
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 255912
URI: http://eprints.soton.ac.uk/id/eprint/255912
PURE UUID: a2aec485-7785-4b8b-beee-52a01c95b470
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Date deposited: 07 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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