Please use this identifier to cite or link to this item:
|Title:||Adaptive symbol and parameter estimation in asynchronous multiuser CDMA detectors||Authors:||Lim, T.J.
|Issue Date:||1997||Citation:||Lim, T.J.,Rasmussen, L.K. (1997). Adaptive symbol and parameter estimation in asynchronous multiuser CDMA detectors. IEEE Transactions on Communications 45 (2) : 213-220. ScholarBank@NUS Repository. https://doi.org/10.1109/26.554369||Abstract:||Existing multiuser code-division multiple-access (CDMA) detectors either have to rely on strict power control or near-perfect parameter estimation for reliable operation. In this paper, a novel adaptive multiuser CDMA detector structure is introduced. Using either an extended Kaiman filter (EKF) or a recursive least squares (RLS) formulation, adaptive algorithms which jointly estimate the transmitted bits of each user and individual amplitudes and time delays may be derived. The proposed detectors work in a tracking mode after initial delay acquisition is accomplished using other techniques not discussed here. Through computer simulations, we show that the algorithms perform better than a bank of single-user (SU) receivers in terms of near-far resistance. Practical issues such as the selection of adaptation parameters are also discussed in some detail. © 1997 IEEE.||Source Title:||IEEE Transactions on Communications||URI:||http://scholarbank.nus.edu.sg/handle/10635/112215||ISSN:||00906778||DOI:||10.1109/26.554369|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Sep 19, 2022
checked on Sep 22, 2022
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.