A new MAC algorithm for QoS support in ad hoc networks

Supporting real-time traffic in wireless LANs is one of the interesting QoS issues. However, the wireless ad hoc networks are severely affected by bandwidth, and establishing a QoS in these networks face problems. In this paper, we have proposed a fully distributed MAC algorithm to support the QoS in ad hoc networks. This algorithm provides delay fairness and delay differentiation for real-time flows. This algorithm also uses the fixed and/or less stationary nodes for the transmission of real-time flows by increasing the QoS of the multimedia flows. By simulation, we show that our mechanism achieves delay fairness and differentiation, and functions adequately to support real-time traffic in practical environments where real-time traffic and non-real-time traffic coexist in an identical wireless Ad hoc networks.