Call admission control for voice and data traffic in wireless communications

摘要

Call admission control (CAC) in multimedia wireless communications is to guarantee quality of service (QoS) to mobile users and to achieve a high resource utilization efficiency. It is a challenging issue due to user mobility, limited radio spectrum, heterogeneous nature of multimedia traffic. This paper proposes a CAC policy for a wireless system supporting both constant-rate voice calls and available -rate data calls. The parameters of the proposed policy is determined in a systematic way by using an optimization approach.