Accurate delay distribution for IEEE 802.11 DCF
نویسندگان
چکیده
منابع مشابه
A thorough analysis of the performance of delay distribution models for IEEE 802.11 DCF
Deriving the complete distribution of the end-to-end delay in a wireless multi-hop network is of paramount interest when delay-sensitive flows have to be conveyed over such networks. First works have proposed models to derive the total delay distribution of networks assuming the well-known IEEE802.11 DCF medium access (MAC) protocol. Current derivations can be decomposed into two main steps: (i...
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Throughput, delay, and fairness are three most important performance metrics in IEEE 802.11-based wireless networks. In this paper, we provide a simple but precise analytical model to evaluate the above three metrics. Different from the previous models that have focused either on throughput or on delay, our model is unique as we obtain throughput, delay, and fairness all together. Moreover, by ...
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Today’s networks, including WLANs, transport different classes of services. A service differentiation is then essential to provide QoS. However, IEEE 802.11 for WLANs was primarily designed for best effort traffic and did not provide QoS specifications. IEEE 802.11e MAC has been then described to support QoS in WLAN. In this paper, we propose a new scheme for service differentiation which is ba...
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One of the key factors for the wide acceptance and deployment of IEEE 802.11 Wireless Local Area Networks (WLANs) is the simplicity and robustness of the Medium Access Control (MAC) protocol. Based on the well-known carrier sense paradigm, with an exponential backoff mechanism devised to minimize the probability of simultaneous transmission attempts by multiple stations, the protocol is able to...
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The paper presents a new analytical saturation throughput model of IEEE 802.11 DCF (Distributed Coordination Function) with basic access in adhoc mode. The model takes into account freezing of the backoff timer when a station senses a busy channel. It is shown that taking into account this feature of DCF is important in modeling saturation throughput – yields more accurate results than models k...
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ژورنال
عنوان ژورنال: IEEE Communications Letters
سال: 2006
ISSN: 1089-7798
DOI: 10.1109/lcomm.2006.1613759