Title :
Real-time estimation of the signal to interference ratio in cellular radio systems
Author :
Andersin, Michael
Author_Institution :
Network Res., Telia Res., Haninge, Sweden
Abstract :
The signal to interference atio (SIR) has been highlighted in the literature to be a most efficient criterion for several methods aiming at reducing the effects of cochannel interference. We derive two fast SIR estimation algorithms for narrow-band cellular systems. Simulation results for a GSM like system show that with the use of one of the methods, the SIR can be estimated to within an error of 1 dB after only 4.6 ms (i.e. after one frame), or within an error of 0.3 dB after only 60 ms
Keywords :
access protocols; cellular radio; cochannel interference; interference suppression; land mobile radio; parameter estimation; radiofrequency interference; time division multiple access; GSM like system; TDMA; cellular radio systems; cochannel interference reduction; error; fast SIR estimation algorithms; narrow-band cellular systems; real-time estimation; signal to interference ratio; simulation results; Diversity reception; Downlink; GSM; Interchannel interference; Land mobile radio cellular systems; Matched filters; Real time systems; Time division multiple access; Transversal filters; Yield estimation;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.600498
