Handover Management In Heterogeneous Networks
نویسندگان
چکیده
The continuation of an active call is one of the most important quality measurement in cellular system. Handoff process enables a cellular system to provide such a facility by transferring an active call from one cell to another. In this paper a new vertical handoff decision algorithm, handover necessity estimation (HNE), is proposed to minimize the number of handover failure and unnecessary handover in heterogeneous wireless network. The traveling distance has been predicted and compared against the RSS based method to make a handover decision in order to minimize the probability of handover failures or unnecessary handovers from a cellular network to a WLAN. Simulation result shows that this method reduce the number of handover failures and unnecessary handovers up to 80% and 70%, respectively.
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