Quality of service and overload concepts in wireless multimedia networks based on cellular ATM

The need for wireless ATM networks is motivated by an anticipated demand for wireless extension of integrated multimedia services. This wireless extension gives the mobile access part of a backbone ATM-based broadband services fixed network (B-ISDN) for future integrated communications. One of the major mobility-related functions, is connection hand-off when a mobile terminal roams between radio cells. Using the virtual connection tree already proposed for high-speed cellular radio networks based on an ATM backbone, this paper presents an implementation of the Quality of Service (QoS) and overload concepts in a wireless ATM system. Simulation results are presented for a voice and multimedia scenario