Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/112310
Title: Adaptive delay tracking in asynchronous multiuser CDMA systems
Authors: Lim, Teng Joon 
Rasmussen, Lars K. 
Issue Date: 1996
Source: Lim, Teng Joon,Rasmussen, Lars K. (1996). Adaptive delay tracking in asynchronous multiuser CDMA systems. IEEE International Symposium on Spread Spectrum Techniques & Applications 3 : 1001-1005. ScholarBank@NUS Repository.
Abstract: Published work on multiuser code division multiple access (CDMA) receivers often assume knowledge of most system parameters. But in a mobile system, it is unreasonable to assume perfect knowledge of the propagation delays for each mobile user at all times since these delays change when mobile units move. Therefore a method for tracking propagation delays in a practical asynchronous CDMA system is needed. In this paper, we introduce a multiuser detector which is able to track time-varying delays directly, and converges in a stationary environment to the decorrelating detector. It has the advantage of being a blind algorithm, in the sense that it does not require the use of training sequences, and therefore represents a more practical approach than other adaptive multiuser detectors based on linear filtering.
Source Title: IEEE International Symposium on Spread Spectrum Techniques & Applications
URI: http://scholarbank.nus.edu.sg/handle/10635/112310
Appears in Collections:Staff Publications

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