Improving the Heterogeneous Traffic Performance over Wireless LAN IEEE 802.11

C.-S. Yang, Y.-C. Su, C.-W. Lee, B.-E. Wu, and J.-H. Liu (Taiwan)


IEEE 802.11, WLAN, PCF, Multimedia, QoS


In order to grapple with the continuously increasing demand on the multimedia traffic over high speed wireless LAN, we need a QoS-oriented MAC for wireless multimedia system. In this paper, we propose an efficient MAC protocol with centralized scheduling approach in IEEE 802.11 to satisfy heterogeneous traffic mix. There are two main algorithms to achieve the goal. The first is a queue management algorithm for downlink and uplink to satisfy video traffic's high bandwidth requirement. The second is a polling list management method to enhance the efficiency of the polling scheme for transmitting voice traffic.

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