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Performance Analysis and Evaluation of EDCF Supporting Fairness in Wireless LANs  

Choi, Kee-Hyun (성균관대학교 정보통신 공학부)
Lee, Jae-Kyung (충주대학교 정보제어공학과)
Shin, Dong-Ryeol (성균관대학교 정보통신 공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.8B, 2008 , pp. 615-623 More about this Journal
Abstract
Wireless LAN (WLAN) has greatly benefited from the introduction of various technologies, such as MAC protocol and scheduling algorithm. The majority of these technologies focus on fairness or service differentiation. However, it is difficult to use these technologies to provide many benefits to WLAN simultaneously because the current WLAN system only focuses on the provision of a single aspect of QoS. Unfortunately, multimedia applications require both service differentiation and fairness. Therefore, this paper combines Distributed Fair Scheduling (DFS) and Enhanced Distributed Coordinate Function (EDCF), to provide both fairness and service differentiation simultaneously. Furthermore, we show numerical analysis using Markov process. The simulation results demonstrate that F-EDCF outperforms the EDCF, in terms of throughput, fairness, and delay viewpoints.
Keywords
WLAN; QoS; EDCF; DFS; Fairness;
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  • Reference
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