Dynamic slot allocation multiple access protocol for wireless ATM networks
Xiaowen Wu, Shiqi Wu, Sun Hairong, Lemin Li · 2002
In this paper, a novel multiple access scheme named DSAMA protocol is proposed for wireless ATM networks. DSAMA is the combination of reservation multiple access protocol and dynamic slot allocation algorithm. The orthogonal code is used for reservation in the DSAMA system. Hence, the packet collisions are prevented while several packets apply for reservation slot simultaneously. In addition, due to bandwidth limitation, the dynamic slot allocation algorithm with bound variable for bursty traffic is also proposed in this paper, so that the QoS of multimedia traffic is guaranteed in wireless ATM networks. A computer simulation is utilized to validate the DSAMA protocol. From the analysis and simulation results, we know that the slot utilization in the DSAMA system is higher than that of the other well-known integrated services multiple access (e.g., PRMA, PRMA++). Furthermore, the performance of bursty traffic in the DSAMA system outperforms the case without dynamic slot allocation. We are sure that DSAMA protocol is a competitive candidate to be adopted in the wireless ATM networks.