Analytical Modeling of the Link Delay Characteristics for IEEE 802.11 DCF Multi-Rate WLANs

Joshi, Tanuja; Mukherjee, Anindo; Agrawal, Dharma P.

doi:10.1109/ccece.2006.277561

Cited by 5 publications

(7 citation statements)

References 7 publications

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“…In [33], the authors define different types of delays such as the delay in successful frame transmission, frame drop and delay between two successful frame transmission. There are few approaches to analyze the MAC delay IEEE 802.11 DCF in network unsaturation in the presence of hidden terminals [34], fading channel effect [35], variable frame length [36], multi rate WLAN [37] and assuming selfish station in the network [24].…”

Section: B Unsaturation Conditionmentioning

confidence: 99%

A survey on performance modeling of IEEE 802.11 DCF in Power Save Mode

Swain

2013

2013 International Conference on Green Computing, Communication and Conservation of Energy (ICGCE)

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The IEEE 802.11 standard has a power save management algorithm for both infrastructure and Independent Basic Service Set (IBSS) mode. The standard design distributed coordination function (DCF) for channel access. The DCF is a carrier sense multiple access with collision avoidance (CSMA/CA) scheme with binary exponential backoff (BEB) algorithm. Several analytical models are presented for analysis of the IEEE 802.11 DCF to provide a better understanding of the research challenges. The analytical models are based on the IEEE 802.11 DCF for saturated and unsaturated traffic conditions. This paper presents detailed investigation of current analytical models of performance analysis of IEEE 802.11 DCF with Power Save Mode (PSM) and without PSM. The possible future research works in this field of research interests are also discussed, with an objective to explore new research interests in this field.

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Section: B Unsaturation Conditionmentioning

confidence: 99%

A survey on performance modeling of IEEE 802.11 DCF in Power Save Mode

Swain

2013

2013 International Conference on Green Computing, Communication and Conservation of Energy (ICGCE)

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“…In [15], the authors were the first to observe that in multirate networks the aggregate throughput is strongly influenced by that of the slowest contending station; such a phenomenon is denoted as "performance anomaly of the DCF of IEEE 802.11 protocol". In [16], authors provide an analytical framework for analyzing the link delay of multirate networks. In [18], authors provide DCF models for finite load sources with multirate capabilities, while in [17] authors propose a DCF model for networks with multirate stations and derive the saturation throughput.…”

Section: Introductionmentioning

confidence: 99%

Modelling and Analysis of the Distributed Coordination Function of IEEE 802.11 with Multirate Capability

Daneshgaran

Laddomada

Mesiti

et al. 2008

2008 IEEE Wireless Communications and Networking Conference

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Abstract-The aim of this paper is twofold. On one hand, it presents a multi-dimensional Markovian state transition model characterizing the behavior at the Medium Access Control (MAC) layer by including transmission states that account for packet transmission failures due to errors caused by propagation through the channel, along with a state characterizing the system when there are no packets to be transmitted in the queue of a station (to model non-saturated traffic conditions). On the other hand, it provides a throughput analysis of the IEEE 802.11 protocol at the data link layer in both saturated and non-saturated traffic conditions taking into account the impact of both transmission channel and multirate transmission in Rayleigh fading environment. Simulation results closely match the theoretical derivations confirming the effectiveness of the proposed model.

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“…Second, we argue that the ratio in (20) should indeed be equal to instead of Rmax R . The justification for this follows from the fact that the ratio of the contention windows should take into account any protocol overheads (Physical layer, ACKs, and so forth) and payload sizes.…”

Section: The Contention Window Scaling Protocol (Cwsp)mentioning

confidence: 99%

“…This section provides a simple yet accurate analytical framework to study the performance of multirate networks. A shorter version of this section is published in [20]. We begin by deriving the link-delay characteristics for multirate networks following the IEEE 802.11 DCF as a MAC protocol.…”

Section: Analytical Modeling Of Multirate Networkmentioning

confidence: 99%

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Airtime Fairness for IEEE 802.11 Multirate Networks

Joshi

Mukherjee

Yoo

et al. 2008

IEEE Trans. on Mobile Comput.

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Abstract-Under a multirate network scenario, the IEEE 802.11 DCF MAC fails to provide airtime fairness for all competing stations since the protocol is designed for ensuring max-min throughput fairness. As such, the maximum achievable throughput by any station gets bounded by the slowest transmitting peer. In this paper, we present an analytical model to study the delay and throughput characteristics of such networks so that the rate anomaly problem of IEEE DCF multirate networks could be mitigated. We call our proposal Time Fair CSMA (TFCSMA) which utilizes an interesting baseline property for estimating a target throughput for each competing station so that its minimum contention window could be adjusted in a distributed manner. As opposed to the previous work in this area, TFCSMA is ideally suited for practical scenarios where stations frequently adapt their data rates to changing channel conditions. In addition, TFCSMA also accounts for packet errors due to the time varying properties of the wireless channel. We thoroughly compare the performance of our proposed protocol with IEEE 802.11 and other existing protocols under different network scenarios and traffic conditions. Our comprehensive simulations validate the efficacy of our method toward providing high throughput and time fair channel allocation.

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Analytical Modeling of the Link Delay Characteristics for IEEE 802.11 DCF Multi-Rate WLANs

Cited by 5 publications

References 7 publications

A survey on performance modeling of IEEE 802.11 DCF in Power Save Mode

A survey on performance modeling of IEEE 802.11 DCF in Power Save Mode

Modelling and Analysis of the Distributed Coordination Function of IEEE 802.11 with Multirate Capability

Airtime Fairness for IEEE 802.11 Multirate Networks

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