Performance Analysis of Access Control on Multi-service Networks

Access Control between heterogeneous networks, such as integrated cellular networks and WLAN (Wireless Local Area Network), plays an important role to utilize radio resources in a more efficient way. In this paper, we propose a dynamic traffic load based QoS (Quality of Service) adjusting access control scheme for the multi-service networks. The contributions of our work are threefold. First, by using network queuing theory, our scheme is presented and analyzed in terms of connection-level QoS. Second, to meet the high QoS requirements of multi-level services and decrease blocking probability, certain services can be transformed between wide-band services and narrow-band services as necessary. Meanwhile, other strategies are also introduced to further ensure the Quality of Service (QoS) of high-priority users and services. Simulation results demonstrate that our scheme can improves system performance compared with existing schemes.