2007/04/13 by Inanc Inan, Feyza Keceli, Inan, Inanc +4
Computer Science · #Cooperative Communication and Network Coding #FOS: Computer and information sciences #Mobile Ad Hoc Networks #Other Computer Science (cs.OH) #Wireless Networks and Protocols #cs.OH
paper · pdf · doi:10.48550/arxiv.0704.1838
arxiv created 2007/04/13 · openalex publication_date 2007/04/13 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The recently ratified IEEE 802.11e standard defines the Enhanced Distributed Channel Access (EDCA) function for Quality-of-Service (QoS) provisioning in the Wireless Local Area Networks (WLANs). The EDCA uses Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) and slotted Binary Exponential Backoff (BEB) mechanism. We present a simple mathematical analysis framework for the EDCA function. Our analysis considers the fact that the distributed random access systems exhibit cyclic behavior where each station successfully transmits a packet in a cycle. Our analysis shows that an AC-specific cycle time exists for the EDCA function. Validating the theoretical results via simulations, we show that the proposed analysis accurately captures EDCA saturation performance in terms of average throughput, medium access delay, and packet loss ratio. The cycle time analysis is a simple and insightful substitute for previously proposed more complex EDCA models.