Design of Soft handover in third generation mobile

Abstract

The mobile system terminals allow the users to access communication services while on moving. This essential characteristic has been the headmaster of the main factors those drive the growth in mobile network industries to be massive in less than 20 years . There is a great focus on the uplink algorithms in the third generation mobile system or 3G. This thesis study in-depth ,the mobile communications introducing by the first generation through the second generation to the third one by discussing the main features of these generations , advantages and disadvantages without neglecting the comparison between these generations focusing on downlink algorithms in order to improve the capacity for 3G. The more important parameter which affect the quality of service is how to improve the handover . Handover is the greatest factor that determines the performance of the mobile terminals. The soft handover that used in third generation mobile has the best performance compared to that hard handover employed in the second generation. This thesis deeply concentrates on solving the problem occurs by this soft handover . The target is to clear signaling overload which is the problem created by soft handover percentage. The data collected from Sudani network and analyzed by using MATLAB. The results of Sudani network analyses used for traffic generation in a simulation which developed by MATLAB code. Three scenarios carried to optimize the soft handover based on the number of simulation users or factories in the capacity improvements .