针对IEEE802.16中继网络链路层切换所需信令交互较多,将快速移动IPv6协议使用在IEEE802.16中继网络中将引起更大的信令开销和处理时延的问题,提出适用于IEEE802.16中继网络的快速移动IPv6切换解决方案,通过底层信息的交互提前进行跨子网切换的判断,以减少底层信息的交互,加快网络层切换的速度.仿真结果表明,新方案可减小系统切换的信令开销和切换时延.
Aiming at the problem of link layer handover requires more signaling interaction,which increases the signal cost and handle delay when fast mobile IPv6 is used to wireless IEEE802. 16-based relay networks,a fast handover scheme is proposed to apply fast mobile IPv6 to IEEE802. 16j networks, that determines the cross-subnet handover in advance through the interaction of link layer messages,so as to reduce the handover signal cost and speed up the handover. Simulations show that the handover signal cost and handover delay are decreased in proposed scheme.