Performance analysis of mobility procedures in a hybrid space terrestrial IP environment
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue on broadband satellite networks: A networking perspective
Context-aware handover using active network technology
Computer Networks: The International Journal of Computer and Telecommunications Networking
Performance Analysis of Handoff Techniques Based on Mobile IP, TCP-Migrate, and SIP
IEEE Transactions on Mobile Computing
A novel scheme for mobility management in heterogeneous wireless networks
Wireless Personal Communications: An International Journal
Performance evaluation of SIP based handover in heterogeneous access networks
WSEAS TRANSACTIONS on COMMUNICATIONS
Computer Networks: The International Journal of Computer and Telecommunications Networking
A survey of mobility management in next-generation all-IP-based wireless systems
IEEE Wireless Communications
A new method to support UMTS/WLAN vertical handover using SCTP
IEEE Wireless Communications
Mobility management for VoIP in 3G systems: evaluation of low-latency handoff schemes
IEEE Wireless Communications
Analysis of SIP-based mobility management in 4G wireless networks
Computer Communications
OPNET simulation model for performance evaluation of CAHP-C handover procedure
NEHIPISIC'11 Proceeding of 10th WSEAS international conference on electronics, hardware, wireless and optical communications, and 10th WSEAS international conference on signal processing, robotics and automation, and 3rd WSEAS international conference on nanotechnology, and 2nd WSEAS international conference on Plasma-fusion-nuclear physics
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One of the next steps in the current rapid evolution of wireless technologies will be that operators will need to enable users to use communication' services independently of access technologies, so they will have to support seamless handovers in heterogeneous networks. In this paper we present a novel SIP based procedure for congestion aware handover in heterogeneous networks. With newly defined SIP messages the handover decision is based not only on signal strength, but also on target network status. Using the SIP protocol, this approach is completely independent of access technology and the underlying protocol used, and thus can be easily deployed in operator's environments. The proposed procedure was evaluated with a purpose-built simulation model. The results show that, using the proposed procedure, the QoE of VoIP users can be maintained during session by eliminating handovers to target network, which could cause degradation of service in the target network and by triggering handovers to another network, when there could come to degradation of service in the current network.