Call admission control for adaptive multimedia in wireless/mobile networks

Abstract

Recently there is a growing interest in adaptive multimedia networking where the bandwidth of an ongoing multimedia call is variable. In this paper we propose a call admission control framework for adaptive multimedia services in wireless/mobile networks. We introduce the degradation period ratio (DPR) QoS parameter, which represents the portion of a call's lifetime that it is allocated bandwidth below a predefined target bandwidth to the whole service time of the call. Based on DPR, we present how to guarantee QoS to users analytically. Simulations reveal that adaptive multimedia framework outperforms the non-adaptive multimedia services.