Ad Hoc Wireless Networks: Protocols and Systems
Ad Hoc Wireless Networks: Protocols and Systems
Performance analysis of optimized smooth handoff in mobile IP
MSWiM '02 Proceedings of the 5th ACM international workshop on Modeling analysis and simulation of wireless and mobile systems
Aggressive Transmissions of Short Messages Over Redundant Paths
IEEE Transactions on Parallel and Distributed Systems
UCAN: a unified cellular and ad-hoc network architecture
Proceedings of the 9th annual international conference on Mobile computing and networking
Enhancing Data Authenticity and Integrity in P2P Systems
IEEE Internet Computing
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
Seamless Handoff Scheme Based on Pre-registration and Pre-authentication for UMTS-WLAN Interworking
Wireless Personal Communications: An International Journal
Vertical Handoff Decision Algorithm for UMTS-WLAN
AUSWIRELESS '07 Proceedings of the The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications
Security in mobile ad hoc networks: challenges and solutions
IEEE Wireless Communications
Vertical handoffs in fourth-generation multinetwork environments
IEEE Wireless Communications
Extensible authentication protocol (EAP) and IEEE 802.1x: tutorial and empirical experience
IEEE Communications Magazine
Handoffs in fourth generation heterogeneous networks
IEEE Communications Magazine
Integrated cellular and ad hoc relaying systems: iCAR
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
International Journal of Information and Communication Technology
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In heterogeneous network environments, it is very important for users to provide seamless services while satisfying quality-of-service, regardless of the connected access network. In this paper, we apply a concept of ad hoc cooperation for the vertical handoff in the heterogeneous network. For the seamless vertical handoff of mobile nodes, a neighbor ad hoc node assists some parts of the handoff procedures requiring large latency, such as authentication and IP registration procedures. Details of the vertical handover operation using the ad hoc cooperation are presented and its performance is evaluated. Numerical results show that the proposed vertical handoff procedure decreases the service disruption time and the probability of packet loss, compared with the conventional handoff methods that do not consider the cooperation of ad hoc node.