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 CN  Vol.6 No.3 , August 2014
Adaptive Distributed Inter Frame Space for IEEE 802.11 MAC Protocol
Abstract: In this research, an Adaptive Distributed Inter Frame Space (ADIFS) has been proposed for IEEE 802.11 Medium Access Control (MAC) protocol. The aim of this approach is to improve Quality of Services (QoS) for IEEE 802.11 MAC protocol in single-hop wireless network. The proposed approach is based on traffic type, Collision Rate (CR), Collision Rate Variation (CRV) and Packet Loss Rate. These parameters are used to adjust the DIFS at runtime. The adjusted DIFS is employed to enhance service differentiation at the MAC layer in single-hop wireless networks. The proposed approach contributes to the enhancement of the average QoS for high priority traffic by 32.9% and 33.4% for the 5 and 10 connections, respectively. While the average QoS for the low priority traffic is improved by 14.3% and 18.2% for the 5 and 10 connections, respectively. The results indicate that, the proposed approach contributes in the enhancement of the QoS in wireless network.
Cite this paper: AL-Saraireh, J. , Saraireh, S. , Saraireh, M. and Younis, M. (2014) Adaptive Distributed Inter Frame Space for IEEE 802.11 MAC Protocol. Communications and Network, 6, 165-174. doi: 10.4236/cn.2014.63018.
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