Effective handoff method using mobile location information

The performance of an intercell handoff algorithm is critical to the overall performance of a cellular mobile communication system. This paper presents a handoff algorithm that uses adaptive handoff hysteresis values based on mobile location information and cell RF propagation statistics. Analysis is focused on the probability of handoff and the probability of dropped calls in the system. The simulation results show that the probability of unnecessary handoff is reduced using the adaptive handoff algorithm with a minor increase in the dropped-call probability. This improvement is significant if the propagation signal varies rapidly in the cell