Saturated distributed coordination function Markov model for noisy soft‐real‐time industrial wireless networks

Maadani, Mohsen; Motamedi, Seyed Ahmad; Safdarkhani, Hadi; Parsa, Mahshad

doi:10.1049/iet-com.2013.0384

Cited by 12 publications

(7 citation statements)

References 41 publications

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“…Similarly, in [8] authors derive a closed-form expression from finding the packet delay using the Markov chain model. Madani et al in [10] considers the backoff freezing and busy channel to estimate the collision probabilities more accurately. Similar to the previous work, Motamedi et al in [11] evaluate the DCF in noisy wireless networks.…”

Section: Literature Surveymentioning

confidence: 99%

A Novel Channel Access Mechanism for IEEE 802.15.4e to Promote Internet of Things

Kumar*,

Kumar

2019

IJITEE

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IEEE 802.15.4e defines the specification of PHY layer and MAC layer. Although distinguished by its popularity and strength for Wireless Sensor Networks (WSNs), it still suffers from several limitations that deteriorates its performance. One such restriction is a high collision probability that degrades the performance of a dense network. In this article, we develop a Slotted Access Window (SAW) mechanism, a medium access technique to mitigate high collision probability and energy consumption in dense and battery constrained networks. An accurate analytical model is presented to assess the effectiveness of SAW mechanism and validated using the ns-3 simulator. Finally, results show that the SAW mechanism significantly improves the throughput, energy efficiency, and delay in contrast to the default medium access mechanism.

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Section: Literature Surveymentioning

confidence: 99%

A Novel Channel Access Mechanism for IEEE 802.15.4e to Promote Internet of Things

Kumar*,

Kumar

2019

IJITEE

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“…The performance of the IEEE 802.11 DCF scheme has been extensively studied in the literature using different methods and simplifying assumptions. Because of the lack of a comprehensive model, this performance analysis has been going on up to now . Bianchi's 2D Markov chain model is the first and mostly used one (because of its simplicity) describing the BEB mechanism of DCF.…”

Section: Related Pieces Of Workmentioning

confidence: 99%

“…Most of the models have extended the Bianchi's model to account for other parameters and situations, such as nonsaturated traffic and finite buffer size , finite retransmission attempts , error‐prone channel , channel capture , hidden terminal , and improving the accuracy of the model in predicting performance metrics by considering backoff freezing and so on . From a traffic point of view, most papers assume the saturation condition; each node always has a packet waiting to be transmitted . This can be considered as the worst‐case scenario that simplifies the network analysis and also results in an upper (lower) bound estimation about the normal/noncongested situation of the network delay (throughput).…”

Section: Related Pieces Of Workmentioning

confidence: 99%

“…Maadani et al . have proposed a few closed‐form packet delay analytical models and a DCF model considering realistic industrial situations. Some papers have proposed modifications to the standard, to improve the performance for industrial applications: Vitturi et al .…”

Section: Related Pieces Of Workmentioning

confidence: 99%

“…Similar to some other literature , the authors have been developing a MATLAB‐based SIM code (m‐file) in recent years, to simulate the IEEE 802.11 protocol, having saturated traffic, in various PHY and network conditions. This simulator has been used in some of the authors' previous pieces of work, especially to evaluate different multiple‐input multiple‐output schemes and multipath fading at the PHY . As mentioned before, the typical wireless industrial network has cluster architecture; different sensors and actuators are located near each other around a single instrument, and this architecture repeats factorywide.…”

Section: Model Validationmentioning

confidence: 99%

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A comprehensive DCF performance analysis in noisy industrial wireless networks

Maadani

Motamedi

2014

Int J Communication

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Summary The use of wireless technology in industrial networks is becoming more popular because of its flexibility, reduction of cable cost, and deployment time. Providing an accurate model to study the most important parameters of these networks, the timeliness and reliability, is essential in assessing the network metrics and choosing proper protocol settings. The Institute of Electrical and Electronics Engineers (IEEE) 802.11 is a common and established wireless technology, and several analytical models have been proposed to assess its performance; however, most of them are accurate only for a limited network situation, especially data networks that have large packet payloads and are used at high signal to noise ratios, and cannot be applied to study the performance of industrial networks that have short packet lengths and are used in harsh and noisy environments. In this paper, a novel three‐dimensional discrete‐time Markov chain model has been proposed for the IEEE 802.11‐based industrial wireless networks using the distributed coordination function as the medium access control mechanism in the worst‐case saturated traffic. It considers both causes of the backoff freezing: busy channel and the successive interframe space waiting time. In this way, it provides a much more accurate estimation of the channel access and error probabilities, resulting in a more accurate network parameter calculation. Also, based on the proposed model, a comprehensive packet delay analysis, including average, jitter, and cumulative distribution function, has been provided for the near 100% reliable industrial scenario and error‐prone channel condition, which in comparison with similar pieces of work provides much more accurate results. Copyright © 2014 John Wiley & Sons, Ltd.

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AGEN-AODV: an Intelligent Energy-Aware Routing Protocol for Heterogeneous Mobile Ad-Hoc Networks

2021

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Saturated distributed coordination function Markov model for noisy soft‐real‐time industrial wireless networks

Cited by 12 publications

References 41 publications

A Novel Channel Access Mechanism for IEEE 802.15.4e to Promote Internet of Things

A Novel Channel Access Mechanism for IEEE 802.15.4e to Promote Internet of Things

A comprehensive DCF performance analysis in noisy industrial wireless networks

AGEN-AODV: an Intelligent Energy-Aware Routing Protocol for Heterogeneous Mobile Ad-Hoc Networks

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