Policy-Enabled Handoffs Across Heterogeneous Wireless Networks
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
A Novel Vertical Handoff Strategy for Integrated IEEE802.11 WLAN/CDMA Networks
Proceedings of the Fourth Annual ACIS International Conference on Computer and Information Science
Mobility management challenges and issues in 4G heterogeneous networks
InterSense '06 Proceedings of the first international conference on Integrated internet ad hoc and sensor networks
An improved GGSN failure restoration mechanism for UMTS
Wireless Networks
Signal threshold adaptation for vertical handoff in heterogeneous wireless networks
Mobile Networks and Applications
A Cross-Layer (Layer 2 + 3) Handoff Management Protocol for Next-Generation Wireless Systems
IEEE Transactions on Mobile Computing
Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS-WLAN Interworking
Wireless Personal Communications: An International Journal
Applying Anticipated Vertical Handover (AVHO) in Next Generation Networks
ECUMN '07 Proceedings of the Fourth European Conference on Universal Multiservice Networks
ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part II
Wireless Personal Communications: An International Journal
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Vertical handoff is one of the most important issues for the next generation heterogeneous wireless networks. However, in many situations, unbeneficial vertical handoffs occur across intersystem heterogeneous networks cause network performance degradation. Therefore, we propose a novel configuration architecture that can be deployed in the next generation of wireless networks. Second, we propose a predictive and adaptive Vertical Handoff Decision Scheme that optimizes the handoff initiation time as well as selection of the most optimal network. The proposed vertical handoff decision algorithm considers the technology type as well as the Signal to Interference Ratio (SIR), the Mobile Station (MS) velocity, the user preferences, the applications requirements and the terminal capabilities as the most important factors to make vertical handoff decision. In order to minimize handoff costs, the proposed decision algorithm uses the dwell timer concept. The handoff costs are analyzed in terms of unnecessary and unbeneficial handoffs rate.The simulation results show that the reduction of unnecessary handoffs proposed in our vertical handoff decision scheme reduces the handoff blocking probability, the packets loss rate and the handoff overhead