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Coherent code tracking for spatial transmit diversity DS-CDMA systems

Rice, G.W. and Stirling, I.G. and Sewart, R.W. (2005) Coherent code tracking for spatial transmit diversity DS-CDMA systems. EURASIP Journal on Advances in Signal Processing, 2005 (16). pp. 2739-2747. ISSN 1110-8657

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Abstract

Spatial transmit diversity schemes are now well integrated into third-generation cellular mobile communication system specifications. When DS-CDMA-based technology is deployed in typical macro- and microcell environments, multipath diversity and spatial diversity may be exploited simultaneously by a 2D RAKE receiver. The work presented in this paper focuses on taking advantage of spatial transmit diversity in synchronising the 2D RAKE structure. We investigate the use of coherent and noncoherent techniques for tracking the timing parameters of each multipath component. It is shown that both noncoherent and coherent techniques benefit from transmit diversity. Additionally the performance gap between these two techniques increases with the number of antennas.

Item type: Article
ID code: 4674
Keywords: DS-CDMA, 2D RAKE, transmit diversity, coherent delay-locked loop, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
Depositing user: Strathprints Administrator
Date Deposited: 08 Nov 2007
Last modified: 16 Jul 2013 20:13
URI: http://strathprints.strath.ac.uk/id/eprint/4674

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