Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Basic theorems on the backoff process in 802.11
ACM SIGMETRICS Performance Evaluation Review
IITA'09 Proceedings of the 3rd international conference on Intelligent information technology application
Delay-sensitive routing in multi-rate MANETs
Journal of Parallel and Distributed Computing
A novel CAC scheme for homogeneous 802.11 networks
IEEE Transactions on Wireless Communications
Cross-layer optimization and network coding in CSMA/CA-based wireless multihop networks
IEEE/ACM Transactions on Networking (TON)
Modelling and performance evaluation of the IEEE 802.11 DCF for real-time control
Computer Networks: The International Journal of Computer and Telecommunications Networking
A simple critical-load-based CAC scheme for IEEE 802.11 DCF networks
IEEE/ACM Transactions on Networking (TON)
Cross-layer analysis of the end-to-end delay distribution in wireless sensor networks
IEEE/ACM Transactions on Networking (TON)
On the exact expression for single-stage CSMA/CA's idle period distribution
Computers & Mathematics with Applications
Collaborative approach to mitigating ARP poisoning-based Man-in-the-Middle attacks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Modelling MAC-layer saturation throughput in WLAN mesh networks
International Journal of Ad Hoc and Ubiquitous Computing
A Beacon-Based Collision-Free Channel Access Scheme for IEEE 802.11 WLANs
Wireless Personal Communications: An International Journal
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The MAC access delay in a saturated IEEE 802.11 DCF wireless LAN is analyzed. We develop a unified analytical model and obtain explicit expressions for the first two moments as well as the generating function. We show via comparison with simulation that our model accurately predicts the mean, standard deviation, and distribution of the access delay for a wide range of operating conditions. In addition, we show that the obtained generating function is much more accurate than others that have appeared in the literature. Using our model, we prove that the binary exponential backoff mechanism induces a heavy-tailed delay distribution for the case of unlimited retransmissions. We show using numerical examples that the distribution has a truncated power-law tail when a retransmission limit exists. This finding suggests that DCF is prone to long delays and not suited to carrying delay-sensitive applications