Blind Chip-Rate Equalisation for DS-CDMA Downlink Receiver
Weiss, S, Hadef, M, Konrad, M and Rupp, M (2003) Blind Chip-Rate Equalisation for DS-CDMA Downlink Receiver. In, 37th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, 09 - 12 Nov 2003. , 1283-1287.
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Description/Abstract
A dispersive channel in the DS-CDMA downlink destroys the orthogonality of the synchronous users' spreading sequences. In this paper, we aim to re-establish 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: | Conference or Workshop Item (Paper) |
|---|---|
| Additional Information: | Event Dates: November 9-12 |
| ISBNs: | 0780381041 |
| ISSNs: | 1058-6393 |
| Divisions: | Faculty of Physical Sciences and Engineering > Electronics and Computer Science |
| Item ID: | 259149 |
| Date Deposited: | 13 Mar 2004 |
| Last Modified: | 26 Apr 2013 03:06 |
| Contributors: | Weiss, S (Author) Hadef, M (Author) Konrad, M (Author) Rupp, M (Author) |
| Date: | 2003 |
| Additional Information: | Event Dates: November 9-12 |
| Status: | Published |
| Further Information: | Google Scholar |
| ISI Citation Count: | 0 |
| URI: | http://eprints.soton.ac.uk/id/eprint/259149 |
Available Versions of this Item
- Blind Chip-Rate Equalisation for DS-CDMA Downlink Receiver. (deposited 13 Mar 2004) [Currently Displayed]
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