Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Enhancing PMIPv6 for Better Handover Performance among Heterogeneous Wireless Networks in a Micromobility Domain | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2010 Article ID 274935 13 pages doi 2010 274935 Research Article Enhancing PMIPv6 for Better Handover Performance among Heterogeneous Wireless Networks in a Micromobility Domain Linoh A. Magagula Olabisi E. Falowo and H. Anthony Chan Department of Electrical Engineering University of Cape Town Rondebosch 7701 South Africa Correspondence should be addressed to Linoh A. Magagula linohm@ Received 8 October 2009 Accepted 24 June 2010 Academic Editor Athanasios Vasilakos Copyright 2010 Linoh A. Magagula et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. This paper analyzes the reduction of handover delay in a network-based localized mobility management framework assisted by IEEE MIH services. It compares the handover signaling procedures with host-based localized MIPv6 HMIPv6 with network-based localized MIPv6 PMIPv6 and with PMIPv6 assisted by IEEE to show how much handover delay reduction can be achieved. Furthermore the paper proposes and gives an in-depth analysis of PMIPv6 optimized with a handover coordinator HC which is a network-based entity to further improve handover performance in terms of handover delay and packet loss while maintaining minimal signaling overhead in the air interface among converged heterogeneous wireless networks. Simulation and analytical results show that indeed handover delay and packet loss are reduced. 1. Introduction The rapid expansion of mobile wireless communications over the last few years has spawned many different wireless communication networks. These networks will be interconnected and interworked with each other to offer access to Internet services for mobile users anytime anywhere. Also the wireless mobile devices are becoming .
