Scheduling start time in CDMA burst admission

Abstract

Burst transmission protocols have been proposed in the next generation CDMA cellular systems to support short-time high-speed data communications. The existing burst admission algorithm considers only the current interference condition in the system. The burst transmission request will be rejected if the interference in the system will exceed the acceptable level with the burst admitted. In this paper we propose a new burst admission algorithm where a currently-unacceptable burst request can be assigned to start at a later time when the system interference level is lower. The interference prediction is based on the establishing, updating, and exchanging the load and burst scheduling tables among the neighboring cells. Simulations show that our method can reduce the burst blocking probability and improve the system resource utilization.