Proactive Traffic Engineering for IEEE 802.11 Mobile Wireless Networks

As a result of its success, Wi-Fi has been promoted as an access technology to provide full internet connectivity in the municipal area. Supporting application QoS by managing resource provisioning is an important challenge for wireless network operators. This paper proposes a traffic engineering model for managing a Voice over Wi-Fi service in a municipal area with stationary and mobile clients. Our proactive algorithm guarantees the connectivity of the mobile clients while maximizing the number of stationary stations. Simulation results show substantial QoS improvements for mobile clients and a near optimal utilization of the capacity of the wireless access network next to the congested hotspots.