Vertical Handoffs in Wireless Overlay Networks

Vertical Handoffs in Wireless Overlay Networks (1996)

Cached

Download Links

Other Repositories/Bibliography

DBLP

by Mark Stemm

Citations:

252 - 4 self

BibTeX

@MISC{Stemm96verticalhandoffs,
    author = {Mark Stemm},
    title = {Vertical Handoffs in Wireless Overlay Networks},
    year = {1996}
}

OpenURL

Abstract

We present extensions to a traditional cellular [Ses95] handoff system to handle the simultaneous operation of multiple wireless network interfaces. This new system allows mobile users to roam in a "Wireless Overlay Network" structure consisting of room-size, building-size, and wide-area data networks. In this structure, the user can connect to the wired network through multiple wireless subnets, and offers the best possible connectivity given the user's geographic location and local wireless connectivity. We present the basic handoff system and show that the handoff latency is bounded by the amount of time that the mobile host takes to discover that it has moved in or out of a new wireless overlay. To efficiently support applications that can not tolerate these disruptions, we present optimizations to this basic scheme that assume no knowledge about specific channel characteristics. For handoffs between room-size and building-size overlays, these optimizations lead to a handoff latenc...

Keyphrases

wireless overlay network vertical handoff mobile user traditional cellular ses95 handoff system basic handoff system specific channel characteristic simultaneous operation handoff latency basic scheme handoff latenc mobile host wide-area data network local wireless connectivity geographic location present extension wireless overlay network structure possible connectivity building-size overlay new wireless overlay multiple wireless subnets multiple wireless network interface new system wired network