Low-latency handover in a wireless ATM LAN

摘要

The micro- and picocellular architectures proposed for wirelessnATM LANs lead to wireless terminals frequently changing their point ofnattachment to the network. Because ATM connections have quality ofnservice (QoS) guarantees which must be maintained, handover must be asnseamless as possible. We present a novel architecture and protocol whichnprimarily aims to keep the interruption period due to handover low,nrather than seeking to keep the process entirely lossless. We comparenthe tradeoffs made, with those in other schemes from the literature, andngive quantitative results from an implementation of our scheme on a 10nMbits/s-1 prototype wireless ATM LAN