Mobility management in wireless IP networks

Abstract

Mobility management plays a significant role in the current and the future Internet in delivering effective services to the mobile users on the move. This research proposes a mobility management architectural framework that will incorporate wireless mobility architecture and call admission control. To achieve this we carried out three tasks, (i) the architectural basis for the mobility management strategy for real-time data communication was established, (ii) a suitable call admission criteria and a corresponding call admission control algorithm for the strategy was defined, (iii) a simulated performance evaluation of the strategy was developed. The results obtained are as follows: (i) this study resulted in a strategy that prioritizes calls of the guaranteed services class over calls of other classes, (ii) the higher priority of handoff calls over new calls has been achieved; and (iii) the proposed Call Admission Control (CAC) algorithm shows to have an acceptable performance with an average acceptance rate of calls of up to 83%. In conclusion this study resulted in a CAC algorithm that prioritizes real-time traffic over non real-time traffic as well as handoff calls over new calls.