Symbol error probability analysis of a multiuser detector for M-PSK signals based on successive Cancellation
2002 (English)In: IEEE Journal on Selected Areas in Communications, ISSN 0733-8716, E-ISSN 1558-0008, Vol. 20, no 2, 330-338 p.Article in journal (Refereed) Published
A narrow-band multiuser receiver based on successive signal detection and subtraction, is considered in this paper. The symbol error probability (SEP) for M-PSK modulated signals is evaluated and analytical approximations for the SEP of the individual signals are presented and compared with results obtained from simulations. For geometrically related signal amplitudes, a constant minimum distance can be guaranteed independent of the number of signals. The required amplitude ratio is shown to be related to and the number of co-channel signals. Optimizing the transmitted power for the different signals while ensuring the same SEP is then addressed and closed-form expressions of the signal amplitude ratios are derived. The effect of inaccurately estimated signal parameters due to noise is also analyzed. SEP results are presented for synchronous signals in an additive white Gaussian noise environment.
Place, publisher, year, edition, pages
New York: IEEE , 2002. Vol. 20, no 2, 330-338 p.
Multiuser detection, parameter estimation, signal cancellation, symbol error rate
Computer and Information Science
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-28017DOI: 10.1109/49.983349ISI: 000173858500011OAI: oai:DiVA.org:kth-28017DiVA: diva2:383807
QC 201101102011-01-052011-01-052011-12-01Bibliographically approved