The Study of Quality-of-Service in IEEE 802.11 WLAN

• Main Authors: Chen Li-Hung, 陳立宏
• Other Authors: Jan-Ray Liao
• Format: Others
• Language: en_US
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/77628333409934153526

碩士 === 國立中興大學 === 電機工程學系 === 92 === Today''s computing environment has more and more quality-of-service (QoS) requirements, especially in wireless networking. We will present the most popular wireless network standard - the IEEE 802.11 Wireless LAN. We seek to provide service differentiation in IEEE 802.11 Distributed Coordination Function (DCF) mode under Medium Access Control (MAC) layer. We simulated these differentiation mechanisms. There are three differentiation mechanisms simulated: Backoff Increase Function, Minimum Contention Window Size (CWmin) and Distributed Inter Frame Space time (DIFS). We showed the simulated results of these three differentiation mechanisms in individual and combined situations. We observed that combining two or more differentiation mechanisms increase throughput differentiation.