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Subspace based estimation of the signal to interference ratio for TDMA cellular systems
KTH, Superseded Departments, Signals, Sensors and Systems.
Wireless Information Network Laboratory (WINLAB), Rutgers University.
Wireless Information Network Laboratory (WINLAB), Rutgers University.
1998 (English)In: Wireless networks, ISSN 1022-0038, E-ISSN 1572-8196, Vol. 4, no 4, 241-247 p.Article in journal (Refereed) Published
Abstract [en]

The Signal-to-Interference Ratio (SIR) has been highlighted in the literature to be a most efficient criterion for several methods aiming at reducing the effects of cochannel interference, e.g., diversity reception, dynamic channel allocation and power control. In this paper we address the problem of how to obtain fast and accurate measurements of this parameter in a practical context. We develop a general SIR estimation technique for narrow-band cellular systems that is based on a signal subspace approach using the sample covariance matrix of the received signal. Simulation results using the frame structure in the GSM system show that the SIR can be estimated to within an error of 0.3 dB after only 200 ms, or within an error of 0.1 dB after only 0.6 seconds.

Place, publisher, year, edition, pages
ACM/Kluwer Academic Publishers , 1998. Vol. 4, no 4, 241-247 p.
National Category
Computer and Information Sciences
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-28141DOI: 10.1023/A:1019160207631OAI: oai:DiVA.org:kth-28141DiVA: diva2:384006
Note
QC 20110114Available from: 2011-01-07 Created: 2011-01-07 Last updated: 2018-01-12Bibliographically approved

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