期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2014
卷号：69
期号：1
出版社：Journal of Theoretical and Applied
摘要：Multimedia applications in wireless communication have been increased in recent years. A variety of wireless access technologies are introduced for various needs. The abundant increase in mobile computing devices and different networking systems leads to the support of user�s mobility in Heterogeneous Wireless Networks (HWN).This paper addresses a Scheduling Based Vertical Handover Management Scheme (SBVHM) when a user migrate between WLAN and WiMAX for seamless and ubiquitous access. Various wireless technologies such as wireless LAN, WiMAX and 3GPP are interlaced to support many wireless services in global environment. In addition QoS has become more significant in many applications where wireless network resources are utilized. The proposed scheduling based vertical Handover management scheme analyses the QoS enhancement of the mobile user in a Heterogeneous network. Our simulation results show that by introducing proper scheduling, the QoS parameters such as Reauthentication delay and Signalling Cost are reduced significantly. The algorithms Genetic Queuing, Proportionally Fair Queuing and WiMAX QoS Aware Load Balancing are proposed in the scheduling process during handover. The simulation is implemented using NS-2 and the experimental results are obtained for the proposed algorithms and compared with the standard scheme.
关键词：Heterogeneous Network; Quality of Service; Reauthentication Delay; 3GPP; Signalling Cost.
