Performance Analysis of Fast Handover Schemes in IEEE 802.16e Broadband Wireless Networks

摘要

Broadband Wireless Networks based on IEEE 802.16 standard are developed to extend the wired networks with more efficient deployment and lower maintenance cost. IEEE 802.16e standard is proposed to support the mobility up to 60km/h with the data transmission rate up to 2Mbps, so handover has become one of the most important factors that impact the performance of IEEE 802.16e system. In order to reduce the redundancies in IEEE 802.16e handover process, several fast handover schemes, including single neighbor BS scanning, fast ranging and pre-registration, have been proposed. In this paper, handover delay of these schemes is analyzed and compared. The simulation results show that these fast handover schemes can reduce handover delay, thus improve the QoS of IEEE S02.16e broadband wireless networks.