• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 17 Issue 5
Oct.  2004
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Article Contents
ZHANGLian-bo, FANGXu-ming. Simulation Investigation of Channel AccessMechanism for 802.11e EDCF[J]. Journal of Southwest Jiaotong University, 2004, 17(5): 660-664.
Citation: ZHANGLian-bo, FANGXu-ming. Simulation Investigation of Channel Access Mechanism for 802.11e EDCF[J]. Journal of Southwest Jiaotong University, 2004, 17(5): 660-664.

Simulation Investigation of Channel Access Mechanism for 802.11e EDCF

  • Publish Date: 25 Oct 2004
  • To deeply discuss the mathematics model for EDCF (enhanced distributed coordination function), the performances of two access mechanisms, 802.11 DCF (distributed coordination function) and 802.11e EDCF, were analyzed and compared through simulation. The differences between 802.11 DCF and 802.11e EDCFwere discussed, and the principle of EDCF providing the quality of service (QoS) was investigated. Simulation result shows that EDCF can provide the guarantee of QoS forwireless LANs (local area network), but systemperformance deteriorates if there are many data streamswith high priority contend for a channel.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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