The Dynamic Packet Reservation Multiple Access Scheme For Multimedia Traffic - Communications, 1998. ICC 98. Conference Record.1998 IEEE International Conference on

T h e performance of t he D y n a m i c Packe t Reservat ion Multiple Access ( D P R M A ) , which was introduced in previous publications, i s investigated. In particular, we show here how t h e D P R M A scheme integrates three dif ferent t r a f i c types: voice, video, and data, through a single access control m e c h a n i s m tha t permi t s users t o specify their immed ia te bandwidth requirements. T h e p r i m a r y feature of t he D P R M A i s t he dynamic ma tch ing of t he traJgic source generat ion rates w i th t h e assigned fract i o n of t he channel capacity. T h i s i s accomplished by a multiple-threshold-driven control algorithm wi th hysteresis that regulates t h e actual a m o u n t of channel capacity assigned t o users . W e discuss h o w t h e multiple thresholds are selected for t he three t r a f i c types and demonstrate the improvemen t of t h e D P R M A m e c h a n i s m in increased throughput and reduced n u m b e r of collisions.