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Design and Modeling of Self-Adapting MAC (SaMAC) Protocol with Inconstant Contention Loss Probabilities
Joint Authors
Ožegović, Julije
Kristić, Ante
Kedžo, Ivan
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-25, 25 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-12
Country of Publication
Egypt
No. of Pages
25
Main Subjects
Information Technology and Computer Science
Abstract EN
Networks based on IEEE 802.11 standard are one of the main options for deployment in industrial environment.
Degradation of throughput in congested networks and short-term unfairness are well-known drawbacks of 802.11 DCF and similar MAC protocols.
Those shortcomings represent significant limitation in forecasted growth of wireless usage.
This is especially important in industrial wireless networks (IWN) where the scalability of wireless MAC is one of the main requirements.
In this paper, a novel self-adapting MAC protocol (SaMAC) is defined and mathematically modeled.
SaMAC employs constrained countdown freezing enhanced with shifted window mechanism.
As a result, the protocol outperforms 802.11 DCF standard as well as shifted contention window (SCW) and constrained countdown freezing (CPCF) protocols in achieved throughput, fairness, and jitter, while keeping simple implementation.
Despite protocol’s simple design, it is shown that its mathematical model is extremely complex.
For proposed protocol, the assumption of constant contention loss probability, which is normally used for modeling of MAC schemes, does not hold.
In the presented multidimensional Markov chain model, a unique iterative method for determining contention loss probability is developed as well as a method for throughput calculation based on such a chain.
Accuracy of the presented model is verified in several network scenarios.
Considering the performance of the proposed protocol, authors believe that it could be of benefit to deploy it in heavily loaded wireless networks with timing constraints, such as IWNs.
American Psychological Association (APA)
Kristić, Ante& Ožegović, Julije& Kedžo, Ivan. 2018. Design and Modeling of Self-Adapting MAC (SaMAC) Protocol with Inconstant Contention Loss Probabilities. Wireless Communications and Mobile Computing،Vol. 2018, no. 2018, pp.1-25.
https://search.emarefa.net/detail/BIM-1216148
Modern Language Association (MLA)
Kristić, Ante…[et al.]. Design and Modeling of Self-Adapting MAC (SaMAC) Protocol with Inconstant Contention Loss Probabilities. Wireless Communications and Mobile Computing No. 2018 (2018), pp.1-25.
https://search.emarefa.net/detail/BIM-1216148
American Medical Association (AMA)
Kristić, Ante& Ožegović, Julije& Kedžo, Ivan. Design and Modeling of Self-Adapting MAC (SaMAC) Protocol with Inconstant Contention Loss Probabilities. Wireless Communications and Mobile Computing. 2018. Vol. 2018, no. 2018, pp.1-25.
https://search.emarefa.net/detail/BIM-1216148
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1216148