Adaptive Scanning and Handover Triggering for Mobile WiMAX
Handover delay in mobile communication causes degradation in system, performance, especially when implemented in real-time applications. The first and most consuming phase in the handover process is the scanning phase. This paper focuses on the trigger and the sequence in which the scanning is done to optimize this process. In this paper, a scanning and handover triggering scheme is proposed. It combines between the multi-scanning concept and the dynamic adaptation of the scanning activity triggering according to the changing down rate of the signal strength of the serving base stations. In addition, an adaptive handover threshold is considered to adapt the handover triggering. Numerical results show that the proposed scheme reduces the handover delay and enhances the resources utilization.
handover mobile WiMAX Received Signal Strength Indication (RSSI) scanning time
Rania Elkotby Rawya Rizk Mahmoud Marie
Port Said University Port-Said, 42523, Egypt Computer Engineering and Systems El-Azhar University, Cairo, Egypt
国际会议
重庆
英文
662-667
2011-08-20（万方平台首次上网日期，不代表论文的发表时间）