A priority scheme for IEEE 802.11 with guaranteeing QoS

  • Kim, Yong-Joong (Department of Electronics Engineering, Ph.D. Course of Engineering, Inha University) ;
  • Park, Hyo-Dal (Department of Electronics Engineering, Faculty of Engineering, Inha University)
  • Published : 2002.07.01

Abstract

In this paper, we proposed the IEEE 802.11 CSMA/CA protocol with the priority scheme. The IEEE 802.11 CSMA/CA protocol is the standard in wireless LAN We applied the proposed method to the aeronautical mobile telecommunication environment. The CSMA/CA protocol has two frames : one is PCF frame for real time service like voice and image and the other DCF frame for contention services like data transmission. Now we proposed the priority scheme that has the different CW region according to the transmitted data. The simmulation results shows the proposed method's performance is improved, Because the collision probability is reduced by allowing the different CW between stations. And the time dalay results show the priority scheme is very appropriated.

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