Abstract

The obstruction in cellular network involves the problem when a mobile user travels from one cell to another during a call. As adjacent cell do not use the same radio channels, a call must be transferred from one radio channel to another when a user crosses the line between the adjacent cells. The process of handover takes place that transfer an ongoing call from one cell to another cell as the user moves through the coverage area of a cellular network. There are several different reasons needed to be known to determine whether a handover is required. The signal strength of the base station, along signal strengths of the surrounding stations as in addition the availability of the channels also needed to be known. The mobile monitors the strength of the base stations in cellular network to know for the status of channel availability and the network make decision about the handover. The main goal of this research is to investigate the handover research issues and developing schemes which can handle handovers traffic in order to support on-going calls when mobile users are switching between base stations. The final outcomes of the research will theoretical and mathematical approaches to convince the users as possible to provide effective methods for evaluating handover mechanisms as well as cellular network performance.

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