Abstract
We consider the problem of designing a multiuser detector for synchronous code-division multiple-access (CDMA) systems, where the signature matrix is subject to structured uncertainties. We seek the robust multiuser detector that minimizes the worst-case bit error probability (BER) over all possible values of the unknown signature matrix. We first develop the exact robust multiuser detector. Then, based on the framework of robust semidefinite programming (SDP), we suggest an approximation to the robust multiuser detector that can be obtained as a solution to an SDP, which can be solved efficiently using standard software packages. We then demonstrate through an example that by taking the structure of the uncertainty into account we can increase the detector performance over standard detection methods that do not consider the signature uncertainty.
Original language | English |
---|---|
Title of host publication | 2004 12th European Signal Processing Conference, EUSIPCO 2004 |
Publisher | European Signal Processing Conference, EUSIPCO |
Pages | 185-188 |
Number of pages | 4 |
ISBN (Electronic) | 9783200001657 |
State | Published - 3 Apr 2015 |
Externally published | Yes |
Event | 12th European Signal Processing Conference, EUSIPCO 2004 - Vienna, Austria Duration: 6 Sep 2004 → 10 Sep 2004 |
Publication series
Name | European Signal Processing Conference |
---|---|
Volume | 06-10-September-2004 |
ISSN (Print) | 2219-5491 |
Conference
Conference | 12th European Signal Processing Conference, EUSIPCO 2004 |
---|---|
Country/Territory | Austria |
City | Vienna |
Period | 6/09/04 → 10/09/04 |
Bibliographical note
Publisher Copyright:© 2004 EUSIPCO.