The IEEE 802.16 standard was designed to
provide rapid deployment, high bandwidth, and low-cost
fixed broadband wireless access (BWA). As an enhancement,
IEEE 802.16e standard was developed for further
supporting mobility. As media streaming services are
extending to mobile stations, it is crucial to minimize the
handover delay and service disruption time so as to
maintain the sustained connection of IP sessions. In this
work, we propose a cross-layer IPv6 fast handover scheme
which features integrated layer 2/layer 3 messages and fast
network re-entry methods. Compared with the fast mobile
IPv6 over 802.16e network scheme in predictive mode, our
proposed scheme can reduce the service disruption time by
more than 90% and 85% for downlink and uplink,
respectively so that the quality of service (QoS) for real-time
applications can be improved significantly

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Establishing peer-to-peer (P2P) live streaming for mobile ad hoc network (MANET) requires an efficient scheme to deliver the realtime data in the infrastructure-less disaster environment. However, P2P membership management is difficult in the dynamic mobility and resource limited MANET. In this paper, we present a cross-layer design for P2P-MANET which integrates P2P DHT-based routing protocol and IPv6 routing protocol. Therefore, the proposed scheme can manage and recover the P2P overlay as well as selecting efficient routing path to multicast video streaming. The simulation results demonstrate that the proposed scheme performs relatively better than the layered approach or the off-the-shelf design in terms of the playback continuity and signaling overhead. key words: IPv6, wireless ad hoc, P2P streaming