Optimized Handoff Scheme Using Fuzzy Logic

Provided by: ISR JOURNALS
Topic: Mobility
Format: PDF
In this paper, the authors describe an optimized solution for handover across heterogeneous networks using fuzzy-logic. Handoff algorithm metrics such as Received Signal Strength (RSS), Signal to Interference Ratio (SIR), transmit powers (Eb) are compared with Fuzzy-Logic based handoff algorithm for making handoff decision. Traditional handoff algorithm is based on stochastic and heuristic models. Because of statistical fluctuations in signal strength due to fading, a call gets repeatedly handoff back and forth between neighboring base stations (ping-pong effect) before it is associated with single base station, or is forced to terminate as the signal strength falls below acceptable levels.

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