QoS Support for Mobile Computing
Steven Pope, Paul Webster · 1997
In recent years small, completely portable computers have become available on the marketplace. There is demand for such computers, termed walkstations, to access network services while retaining their mobility and to operate effectively whilst traversing both indoor Wireless LAN (WLAN) networks and the outdoor Mobile Radio Network (MRN) infra-structure.This paper introduces the traded handoff where connections are rebuilt during a handoff to the most appropriate service, taking into account the properties required by the application and locally available, replicated or compatible services. Network level solutions can only redirect connections back to the original endpoint as the walkstation moves. This is the case even if the connection is to a locally replicated service.