Title :
Analysis of second order statistics of the SIR in cellular mobile networks
Author :
Graziosi, F. ; Santucci, F.
Author_Institution :
Dept. of Electr. Eng., l´´Aquila Univ., Italy
Abstract :
In this paper the second order statistics of the signal to interference ratio (SIR) are analyzed for a cellular mobile network in the presence of log-normal shadowing and co-channel interferers. The autocovariance function of the SIR is derived in closed form, by extending the Wilkinson´s method that has been previously used only for the derivation of the first and the second moments of the sum of log-normal random variables. Outage occurrence rate and duration are taken as performance measures and the relevant system parameters are varied in order to analyze their effects on system performance,
Keywords :
approximation theory; cellular radio; cochannel interference; covariance analysis; log normal distribution; radio networks; random processes; statistical analysis; SIR; Wilkinson´s approximation method; autocovariance function; cellular mobile networks; closed form expression; co-channel interferers; first moment; log-normal random variables; log-normal shadowing; outage duration; outage occurrence rate; performance measures; second moment; second order statistics; signal to interference ratio; system parameters; system performance; Base stations; Cellular networks; Fading; Gaussian processes; Intelligent networks; Interference; Land mobile radio; Shadow mapping; Statistical analysis; Statistical distributions;
Conference_Titel :
Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-5435-4
DOI :
10.1109/VETECF.1999.801476
