A strategy for flexible channel assignment in mobile communication systems

Satellite constellation design and radio resource management using genetic algorithm

“…The maximum efficiency is equivalent to maximum utilization of every channel in the system. It is obvious that the shorter the channel reuse distance, the greater the channel reuse over the whole service aiea [47][48].…”

Dynamic channel allocation in interference-limited cellular systems with uneven traffic distribution

“…DCA represents a complete sharing of the channels. Intermediate policies differ in the amount of resource sharing they allow and include hybrid strategies [4], adjustment of parameters according to load [7], and channel borrowing [2], [8]. Proposed channel assignment strategies vary along a spectrum from random assignment, which randomly assigns any free channel satisfying the admission control policy to a new call, to global assignment, which uses information about all existing channel assignments in the entire service region to assign a channel that will in some sense minimize the system-wide detrimental effects.…”

Multi-period Channel Assignment

“…In fact, usually frequency plan dimensioning is based on an over-sizing of traffic data [1][6] [17] and unused channels in lightly loaded cell are not reassigned to heavily loaded ones. To overcome this handicap, many alternative strategies have been adopted as dynamic channel assignment [1] [3], hybrid channel assignment [15] and channel borrowing [16]. Usually those techniques perform badly in heavy traffic or require additional signaling loads to ensure channel readjustment [8].…”