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An Improved Cancellation Multiuser Detector for Narrowband Signals
KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS. (Radio Communication Systems)ORCID-id: 0000-0001-9697-9978
KTH, Skolan för informations- och kommunikationsteknik (ICT), Kommunikationssystem, CoS. (Radio Communication Systems)
2005 (engelsk)Inngår i: VTC 2005-Spring: 2005 IEEE 61st Vehicular Technology Conference, New York: IEEE , 2005, s. 973-977Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

This paper examines the possibility of reducing error propagation in the successive interference cancellation multiuser detector (SIC-MUD) for a narrowband system. A simple sequence estimation algorithm is employed, working on a symbol by symbol user basis, not affecting the operation of FEC decoding if present. Operating along the stages of the SIC-MUD scheme, this algorithm has a complexity that increases only linearly with the number of users and thus can be used for a larger number of users, as against the optimum joint detection-MUD (JD-MUD), whose complexity increases exponentially with the number of users. Investigation is carried out for both AWGN and Rayleigh fading channels. The obtained results show that the Improved SIC-MUD scheme reduces the error propagation considerably and, with its low complexity, can be a good alternative for the JD-MUD scheme.

sted, utgiver, år, opplag, sider
New York: IEEE , 2005. s. 973-977
Serie
IEEE VTS Vehicular Technology Conference. Proceedings, ISSN 1090-3038 ; 61
Emneord [en]
Algorithms, Channel capacity, Codes (symbols), Computational complexity, Detectors, Rayleigh fading, Signal processing
HSV kategori
Forskningsprogram
SRA - Informations- och kommunikationsteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-29798DOI: 10.1109/VETECS.2005.1543451ISI: 000232179301055Scopus ID: 2-s2.0-26444538452ISBN: 0-7803-8887-9 (tryckt)OAI: oai:DiVA.org:kth-29798DiVA, id: diva2:398114
Konferanse
2005 IEEE 61st Vehicular Technology Conference -VTC 2005 - Spring Stockholm: Paving the Path for a Wireless Future; Stockholm; Sweden; 30 May 2005 through 1 June 2005
Merknad

QC 20110217

Tilgjengelig fra: 2011-02-16 Laget: 2011-02-16 Sist oppdatert: 2018-01-12bibliografisk kontrollert

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Totalt: 62 treff
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