A Hybrid-FAIL Dynamic Channel Allocation Method in GSM System
Journal Title: International Journal of Science and Research (IJSR) - Year 2013, Vol 2, Issue 1
Abstract
Global system for mobile communication (GSM) uses wireless channel to communicate between a mobile stations (MS) to others mobile unit. In GSM the finite number of channel should be efficiently allocated to maximize throughput and avoid co-channel interference. Fixed Channel Allocation (FCA) suffers from the effective channel utilization; whereas Dynamic Channel Allocation (DCA) offers the possibility of capturing unused channel by allocating unused resources to achieve maximize capacity. DCA can reduce the possibility of being a channel idle while a call is waiting to establish. This paper begins by examining channel allocation techniques currently used in DCA. Following this, a solution is proposed that utilize the Hybrid-FAIL algorithm to efficiently allocate channels dynamically from the system. Furthermore, in this paper the main two strategies for channel assignment (DCA and FCA) are briefly discussed and compared. From the simulation of DCA (with the proposed algorithm) and FCA, it is seen that the Grade of Service (GOS) is far better in DCA than that in FCA.
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