Title :
Dynamic cell-size control according to geographical mobile distribution in a DS/CDMA cellular system
Author :
Togo, Toshiki ; Yoshii, Isamu ; Kohno, Ryuji
Author_Institution :
Div. of Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
Abstract :
This paper proposes and investigates a dynamic cell size controlling scheme based on macro-diversity transmission for DS/CDMA. According to the time-variance of geographical mobile distribution, the transmission power of several base-stations is adaptively controlled considering the measured signal-to-interference power ratios of the received signals from mobile stations in order to minimize the calculated outage probabilities of the whole cells in the service area. Computer simulation shows the performance improvement
Keywords :
adaptive control; cellular radio; code division multiple access; diversity reception; fading channels; multipath channels; multiuser channels; power control; probability; radiofrequency interference; spread spectrum communication; telecommunication control; DS/CDMA cellular system; adaptive power control; base-stations; computer simulation; dynamic cell-size control; geographical mobile distribution; macro-diversity transmission; measured signal-to-interference power ratios; multipath fading; outage probabilities; performance; received signals; service area; time-variance; transmission macro-diversity; transmission power; Attenuation; Base stations; Communication system control; Control systems; Frequency; Interference; Multiaccess communication; Power engineering and energy; Shadow mapping; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.734340
