Weiss, S. and Hadef, M. and Konrad, M. and Rupp, M. (2003) Blind chip-rate equalisation for DS-CDMA downlink receiver. In: Conference record of the 37th asilomar conference on signals, systems & computers. IEEE, New York, pp. 1283-1287. ISBN 0780381041
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
A dispersive channel in the DS-CDMA downlink destroys the orthogonality of the synchronous users' spreading sequences. In this paper, we aim to reestablish this orthogonality blindly by means of a common chip-level equaliser. The adaptation algorithm is based on a constant modulus criterion forcing the various user symbols onto a constant modulus, for which a stochastic gradient descent algorithm is derived. This algorithm is structurally similar to a multiple error filtered-X LMS type approach, whereby the equaliser input CM update is replaced by a spreading code filtered version. Various simulations demonstrating the algorithm's convergence and noise performance are presented.
| Item type: | Book Section |
|---|---|
| ID code: | 40609 |
| Keywords: | multiuser detection, LMS , signals, algorithm, blind, chip-rate, equalisation, ds-cdma , downlink receiver, Electrical engineering. Electronics Nuclear engineering |
| Subjects: | Technology > Electrical engineering. Electronics Nuclear engineering |
| Department: | Faculty of Engineering > Electronic and Electrical Engineering |
| Related URLs: | |
| Depositing user: | Pure Administrator |
| Date Deposited: | 31 Jul 2012 13:48 |
| Last modified: | 31 Jul 2012 13:48 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/40609 |
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