Title :
Spatial correlation of shadow fading and its impact on handover algorithm parameter settings
Author :
Dassanayake, Prem
Author_Institution :
Dept. of Electr. & Electron. Eng., Victoria Univ., Footscray, Vic., Australia
Abstract :
The handover algorithm of digital cellular mobile systems often require the successive signal samples to be averaged over a period of time. The averaging time is a critical parameter in eliminating the unnecessary handover attempts, and has to be carefully determined for a given mobile environment. Among the factors that influence this parameter are the degree of shadowing present in the mobile environment and the spatial correlation between successive signal samples. This paper investigates the correlation models that could represent the mobile received signal with varying degrees of shadow fading, and the form of signal profile that could be obtained with different averaging times. Simulation results show that the effect of spatial correlation when taken along with sample averaging is to produce a cumulative character in the shadow component of the mobile received signal
Keywords :
cellular radio; correlation methods; digital radio; fading; signal sampling; averaging time; correlation models; digital cellular mobile systems; handover algorithm parameter settings; sample averaging; shadow fading; signal profile; simulation; spatial correlation; Base stations; Bit error rate; Decision making; Fading; Fluctuations; GSM; Manufacturing processes; Mobile communication; Shadow mapping; Timing;
Conference_Titel :
Networks, 1995. Theme: Electrotechnology 2000: Communications and Networks. [in conjunction with the] International Conference on Information Engineering., Proceedings of IEEE Singapore International
Print_ISBN :
0-7803-2579-6
DOI :
10.1109/SICON.1995.526051
