Current topics in wireless and mobile ATM networks: QoS control, IP support and legacy service integration

This paper presents a selection of current topics related to emerging wireless and mobile ATM network technologies. A summary of the wireless ATM system architecture and related radio access layer and "M" UNI/NNI protocols is given. As technical approaches for these radio access and mobile network protocols are now entering the convergence phase, we identify several systems-oriented issues that need to be addressed next for efficient and flexible use of the mobile/wireless ATM networking platform. Specific topics discussed include: (1) quality-of-service (QoS) control in wireless ATM systems; (2) interworking with legacy wireless services such as GSM and IS-95/136; and (3) IP support alternatives such as IP-over-mobile ATM, IP switching (Ipsofacto), and IP routing over WATM link layer.