A Decisive Best Effort Service Algorithm Designed to Rationalize Call Failures in Cellular Network

The paper proposes an admission control scheme based on adaptive bandwidth reservation to provide QOS guarantees for multimedia traffic carried in highspeed wireless cellular networks. The proposed scheme allocates bandwidth to a connection in the cell where the connection request originates and reserves bandwidth in all neighboring cells. It combines admission The proposed scheme adjusts the amount of reserved bandwidth based on the current network conditions. It distinguishes new calls and hand-off calls. It gives higher priority to hand-off calls to provide higher connectivity to users who are already accepted in the network. It reduces the bandwidth assigned to non-real time calls (i.e., low priority calls) to provide higher quality of service to real time calls (i.e., high priority calls), if necessary. The proposed scheme is performed at each base station in a distributed manner. The amount of bandwidth reserved is adjusted dynamically.