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Delay Estimation and Data Detection in Long-Code DS-CDMA System

Xiao, P and Strom, E (2003) Delay Estimation and Data Detection in Long-Code DS-CDMA System In: The 9th Asia-Pacific Conference on Communication, 2003-09-21 - 2003-09-24.

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In this paper, we aim at solving the problem of joint delay estimation and data detection of the orthogonal modulated signals in the asynchronous DS-CDMA system employing aperiodic long spreading codes over fading channels. The general system requirement of low error rate in data demodulation necessitates the reliable synchronization mechanisms. Synchronization of CDMA signals with long spreading codes is a more challenging task than that of CDMA signals with short spreading codes. In this work, two algorithms are introduced to perform acquisition and tracking of orthogonal modulated signals with long spreading codes, followed by data detection. The numerical results show that when applying to the asynchronous system with random propagation delays, the proposed algorithms approximate the performance that is attainable in the synchronized and chip-aligned system.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
Xiao, P
Strom, E
Date : 21 September 2003
DOI : 10.1109/APCC.2003.1274425
Contributors :
Additional Information : © 2003 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 15 Nov 2013 13:05
Last Modified : 31 Oct 2017 15:12

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