Synchronisation error resistant multiuser detection for asynchronous CDMA
Zheng, F.-C. (2001) Synchronisation error resistant multiuser detection for asynchronous CDMA. In: IEEE 53rd Vehicular Technology Conference (VTC '01), Spring, 6-9 May 2001, Rhodes, Greece, pp. 1755-1759.
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To link to this article DOI: 10.1109/VETECS.2001.944995
Linear CDMA detectors have emerged as a promising solution to multiple access interference (MAI) suppression. Unfortunately, most existing linear detectors suffer from high sensitivity to synchronisation errors (also termed parameter estimation error), and synchronisation error resistant detectors have so far not been as widely investigated as they should have. This paper extends the minimum variance distortionless response (MVDR) detector, proposed previously by this author (Zheng 2000) for synchronous systems, to asynchronous systems. It has been shown that the MVDR structure is equally effective for asynchronous systems, especially for the weaker users.
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