Traffic management for wireless ATM networks

To support multimedia traffic consisting of diverse traffic classes for mobile devices, a traffic management scheme should be developed to provide a seamless wireless ATM based communication system. We propose a novel traffic management scheme based on the Packet Reservation Multiple Access (PRMA) protocol to support QoS guarantee for downlink traffic. The proposed traffic management scheme involves cell scheduling, buffer management, traffic shaping, traffic control, and flow control. The simulation results reveal that the proposed scheme can guarantee QoS (cell delay and cell loss ratio) for both real time (CBR, VBR) and non real time (ABR) traffic in the wireless ATM networks, reduce the buffer size in the Base Station (BS), and enhance the utilization of wireless bandwidth.