Supporting multimedia with bandwidth reservation multiple access protocol

Supporting multimedia traffic over wireless chan nels in a cellular network requires effective control of the channel's limited capacity. The challenge is to guarantee different quality of service (QoS) parameters for different types of traffic while achieving high throughput. We propose and study the performance of a bandwidth reservation multiple access (BRMA) protocol in micro (or pico) cellular networks where the propagation delays are insignificant. The admission and bandwidth allocation functionality is realized through a neural network (NN) according the available bandwidth, traffic patterns and QoS parameters of the new calls. An optimal frame length that controls the scheduling of packets transmission from multiple users is determined such that a worst-case packet loss rate or delay limit can be guaranteed while the throughput is maximized. A service ratio is determined such that the number of transmission slots/frame allocated to each user (group of users) guarantees an "minimum" service rate. This protocol achieves satisfactory performance due to the bandwidth allocation on a call level and the efficient collision-free transmission scheduling.