Demand assigned multiple access systems using collision type request channels - Stability and delay considerations

Stability and delay characteristics are developed for a demand assigned multiple access (DAMA) scheme which employs multiple message channels and multiple collision type request channels and which is capable of high traffic capacity. Tradeoffs among delay, stability, and bandwidth utilization, are investigated using an approximate analysis based on expected value performance measures. It is shown that by operating slightly below capacity a dramatic decrease in average delay is attainable while maintaining absolute stability. The scheme is particularly appropriate for single channel per carrier applications with many low duty cycle users.