Throughput maximization and network-wide service differentiation for IEEE802.11e WLAN

Although IEEE 802.11e standard is approved for better QoS support, the bandwidth allocation to individual access categories (ACs) can unpredictably vary, preventing efficient QoS provisioning. In this paper, we propose a scheme that jointly maximizes channel capacity and provides network-wide service differentiation to provide fine grained proportional bandwidth allocation to ACs without depending on the number of nodes and channel condition. The proposed scheme is analytically grounded and extensively investigated through computer simulations.