3rd International ICST Conference on Quality of Service in Heterogeneous Wired/Wireless Networks

Research Article

An adaptive MAC scheme to achieve high channel throughput and QoS differentiation in a heterogeneous WLAN

  • @INPROCEEDINGS{10.1145/1185373.1185407,
        author={Wei  Zha and Rose Qingyang  Hu and Yi  Qian and Yu Cheng},
        title={An adaptive MAC scheme to achieve high channel throughput and QoS differentiation in a heterogeneous WLAN},
        proceedings={3rd International ICST Conference on Quality of Service in Heterogeneous Wired/Wireless Networks},
        publisher={ACM},
        proceedings_a={QSHINE},
        year={2006},
        month={8},
        keywords={},
        doi={10.1145/1185373.1185407}
    }
    
  • Wei Zha
    Rose Qingyang Hu
    Yi Qian
    Yu Cheng
    Year: 2006
    An adaptive MAC scheme to achieve high channel throughput and QoS differentiation in a heterogeneous WLAN
    QSHINE
    ACM
    DOI: 10.1145/1185373.1185407
Wei Zha1,2,*, Rose Qingyang Hu1,2,*, Yi Qian3,*, Yu Cheng4,*
  • 1: Department of Electrical and Computer Engineering, Mississippi State University,
  • 2: Mississippi State, MS 39762-9571, USA
  • 3: Department of Electrical and Computer Engineering, University of Puerto Rico at Mayaguez, Mayaguez, Puerto Rico.
  • 4: Department of Electrical and Computer Engineering, University of Toronto, Canada
*Contact email: wz34@ece.msstate.edu, hu@ece.msstate.edu, yqian@ece.uprm.edu, y.cheng@utoronto.ca

Abstract

In this paper, we propose an adaptive p-persistent based IEEE 802.11 medium access control (MAC) scheme in a heterogeneous WLAN. Quality of Service in a DCF based heterogeneous WLAN is a challenging task due to the lack of centralized scheduling capability. The proposed scheme can maximize the total channel throughput and provide the service differentiation among different traffic stations. This is achieved by updating the transmission probability for each station in a timely manner based on the real-time network measurements. The simulation results show that the scheme can quickly adapt the station transmission probabilities to the desirable values in order to achieve maximum throughput and QoS provisioning in a dynamic WLAN environment.