Title :
Comparisons of channel-assignment strategies in cellular mobile telephone systems
Author :
Zhang, Ming ; Yum, Tak-Shing P.
Author_Institution :
Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong
fDate :
11/1/1989 12:00:00 AM
Abstract :
Two novel channel-assignment strategies are proposed: 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 strategy that has given the lowest blocking probability in previous research). Computer simulations on a 49-cell network for both uniform and nonuniform traffic showed that the average call-blocking probability of the BDCL strategy is always the lowest. The LODA performance is comparable with that of BCO under nonuniform traffic conditions but is inferior under uniform traffic conditions
Keywords :
cellular radio; radiotelephony; telecommunication channels; BCO; BDCL strategy; LODA performance; 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 conditions; uniform traffic conditions; Base stations; Computer simulation; FCC; Helium; Mobile communication; Radio spectrum management; Telecommunication traffic; Telephony; Traffic control; Urban areas;
Journal_Title :
Vehicular Technology, IEEE Transactions on
