Controlling Contention Window to Ensure QoS for Multimedia Data in Wireless Network

  • Hai-Anh Ngo
  • Pham Thanh Giang Institute of Information Technology, Vietnam Academy of Science and Technology
Keywords: ad hoc network, IEEE 802.11e EDCA, service differentiation, traffic differentiation


The IEEE-802.11e standard was published with
the goal of ensuring quality of service, especially with multimedia data. However, this standard only assigns different
priorities for different types of data but does not control
the sharing of bandwidth among different data flows. In this
paper, we will propose a method of sharing bandwidth for
proportional data flows and controlling Contention Window
of each priority flow to achieve that ratio.