Location Management in GSM

When mobile user is moving from one cell to another cell, Base Station (BS) changes. During the transfer from one BS to another, many times the signal strength gets affected. In the proposed paper, it is tried to improve the signal strength during this change, so as to avoid call drops during handoff and to improve call efficiency. Handoff is the process of changing the channel associated with the current base station and allocates a channel associated with the neighboring base station while a call is in progress. In the proposed paper, the algorithm is developed for increasing the efficiency of vertical handoff and to improve the quality of service (QoS). The vertical handover algorithm is implemented in MATLAB simulation environment. MATLAB GUI is used to develop the cellular structure for front end. Our proposed approach provides better performance and reduces the complexity of VHO.