Since the number of users in mobile cellular system is increasing day by day, there is scarcity of free channels available for call handoff. Also the handoff process should respond faster and appropriately to maintain satisfactory QoS in microcellular environment. To take care of these problems and constraints, an algorithm is proposed, based on fuzzy logic, which considers signal strengths and availability of free channels in surrounding cells for appropriate handoff decision. The algorithm is studied, tested and found to give satisfactory results.
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