Please use this identifier to cite or link to this item: https://doi.org/10.1109/25.820707
Title: Decision-feedback blind adaptive multiuser detector for synchronous CDMA system
Authors: Ping, H. 
Tjhung, T.T. 
Rasmussen, L.K. 
Issue Date: 2000
Source: Ping, H., Tjhung, T.T., Rasmussen, L.K. (2000). Decision-feedback blind adaptive multiuser detector for synchronous CDMA system. IEEE Transactions on Vehicular Technology 49 (1) : 159-166. ScholarBank@NUS Repository. https://doi.org/10.1109/25.820707
Abstract: In this paper, we develop a blind adaptive multiuser detector for synchronous code-division multiple access (CDMA) with a noise-whitening filter. The triangular structure of the noise-whitened model ensures complete resolution of detection ambiguities. To further improve the symbol error probability performance, we introduce decision feedback in our detector similar to the decor-relating decision-feedback detector (DDFD), thus forming the decision-feedback blind adaptive multiuser detector (DFBD). Simulations indicate that the performance of the DFBD is very close to that of the DDFD in additive white Gaussian noise (AWGN) channels. In Rician fading channels, the DFBD can track the slowly varying channels well and has symbol error probability performance approaching that of the DDFD, which requires the knowledge of users' energies. The blind adaptive and decision-feedback blind adaptive multiuser detectors proposed here do not, however, require that knowledge.
Source Title: IEEE Transactions on Vehicular Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/61993
ISSN: 00189545
DOI: 10.1109/25.820707
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