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Blind low-complexity code-timing acquisition for space-time asynchronous DS-CDMA signals | IEEE Conference Publication | IEEE Xplore

Blind low-complexity code-timing acquisition for space-time asynchronous DS-CDMA signals


Abstract:

An adaptive near-far-resistant self-synchronizing detector for asynchronous DS-CDMA systems with a J-element antenna array is presented in this paper. The primary require...Show More

Abstract:

An adaptive near-far-resistant self-synchronizing detector for asynchronous DS-CDMA systems with a J-element antenna array is presented in this paper. The primary requirement is knowledge of the spreading-code sequence of the desired user. A low complexity version of the proposed detector is developed that utilizes the concept of the multistage reduced-rank Wiener filter introduced by Goldstein and Reed (1998). This results in a self-synchronizing detection criterion that requires no inversion or eigen-decomposition of a covariance matrix. It also achieves a rapid adaptive convergence under limited data support. Simulation results show that the proposed detector provides superior performance both as an increasing function of the size of the J-element antenna array and the amount of sample support.
Date of Conference: 17-21 November 2002
Date Added to IEEE Xplore: 26 March 2003
Print ISBN:0-7803-7632-3
Conference Location: Taipei, Taiwan

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