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The hybrid networks of WLAN and WMAN can provide high data rate and enhanced multimedia services, but there are many challenges to obtain handover decision based dynamic QoS information. IEEE 802.21 aims at providing a framework that defines media independent handover (MIH) mechanism that supports seamless handover across hetero geneous networks. In this paper, we propose a new approach network selection...
Wireless networking is becoming a popular and important way to provide global information access to users on the move. Current technologies are different in their characteristics such as bandwidths, latencies, frequencies and media access methods. Most existing wireless network technologies can be divided into two categories: those that provide a low-bandwidth service over a wide area and those that...
In this paper, we consider an interworking architecture of wireless mesh backbone and propose an effective vertical handoff scheme between 802.11 and 802.16 wireless access networks. The proposed vertical handoff scheme aims at reducing handoff signaling overhead on the wireless backbone and providing a lower handoff delay to mobile nodes. The handoff signaling procedure in different scenarios is...
A network based method for an intelligent distribution of transport resources of heterogeneous points of attachment to the network among mobile nodes with multiple network interfaces is presented in this paper. Selection of the used network for a particular multimedia session is based on the QoS situation in access networks available for mobile nodes. A possible realisation using IP multimedia subsystem...
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