【文件属性】：
文件名称：Cross Layer Design for Mobile IP Handoff
文件大小：198KB
文件格式：PDF
更新时间：2013-07-01 15:33:14
Mobile IP; handoff; mobility management;
Wireless and mobile Internet access has brought
increased significance to the evolution of 3G packet-based
communications and a vision of a future based on all-IP
networking. To reduce handoff latency and signaling cost are two
major issues. Certain link-layer technologies are capable of
providing various link status information to the IP module. It has
been identified that receiving explicit hints from the layer 2 (link
layer) would expedite the layer 3 (network layer) movement
detection process, which in turn will reduce the handoff latency.
In this paper, a likelihood function based method for
implementing link layer hints is defined. Then the function is used
to estimate layer 3 movement in two levels: (1) a mobile node is
moving into a new subnet and (2) a mobile node is requiring an
inter-system handoff. Next, the use of the likelihood function is
applied to a pre-registration inter-system handoff protocol.
Finally, performance analysis demonstrates significant gains in
signaling cost from the proposed method.