Title :
Comparisons of channel assignment strategies in cellular mobile telephone systems
Author :
Zhang, M. ; Yum, T.S.
Author_Institution :
Dept. of Electron., Chinese Univ. of Hong Kong, Shatin, Hong Kong
Abstract :
Two new channel assignment strategies are proposed. They are the locally optimized dynamic assignment (LODA) strategy and the borrowing with directional channel locking (BDCL) strategy. Their performance is compared with the fixed assignment (FA) strategy (currently used on certain systems) and the borrowing with channel ordering (BCO) strategy (the stability that has given the lowest blocking probability in previous research). Computer simulations on a 49-cell network for both uniform and nonuniform traffic show that the average call-blocking probability of the BDCL strategy is always the lowest. The LODA performance is comparable with BCO under nonuniform traffic conditions but is inferior under uniform traffic conditions
Keywords :
cellular radio; frequency allocation; radiotelephony; 49-cell network; borrowing with channel ordering; borrowing with directional channel locking; call-blocking probability; cellular mobile telephone systems; channel assignment strategies; fixed assignment; locally optimized dynamic assignment; nonuniform traffic; uniform traffic; Base stations; Channel spacing; Computer simulation; Frequency; Mobile communication; Radio spectrum management; Telecommunication traffic; Telephony; Traffic control; Urban areas;
Conference_Titel :
Communications, 1989. ICC '89, BOSTONICC/89. Conference record. 'World Prosperity Through Communications', IEEE International Conference on
Conference_Location :
Boston, MA
DOI :
10.1109/ICC.1989.49741
