An Adaptive MAC Protocol for Wireless LANs

This paper focuses on contention-based Medium Access Control (MAC) protocols used in Wireless Local Area Networks (WLANs). We propose a novel MAC protocol called Adaptive Backoff Tuning MAC (ABTMAC) based on IEEE 802.11 DCF. In our proposed MAC protocol, we utilize a fixed transmission attempt rate...

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Bibliographic Details
Published in:arXiv.org 2014-11
Main Authors: Jamali, Amin, Seyed Mostafa Safavi Hemami, Berenjkoub, Mehdi, Saidi, Hossein
Format: Article
Language:English
Subjects:
Access control
Local area networks
Performance degradation
Protocol
Protocol (computers)
Wireless networks
Online Access:Get full text
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Summary:This paper focuses on contention-based Medium Access Control (MAC) protocols used in Wireless Local Area Networks (WLANs). We propose a novel MAC protocol called Adaptive Backoff Tuning MAC (ABTMAC) based on IEEE 802.11 DCF. In our proposed MAC protocol, we utilize a fixed transmission attempt rate and each node dynamically adjusts its backoff window size considering the current network status. We determined the appropriate transmission attempt rate for both cases where the Request-To-Send/Clear-To-Send (RTS/CTS) mechanism was and was not employed. Robustness against performance degradation caused by the difference between desired and actual values of the attempt rate parameter is considered when setting it. The performance of the protocol is evaluated analytically and through simulations. These results indicate that a wireless network utilizing ABTMAC performs better than one using IEEE 802.11 DCF.
ISSN:2331-8422
DOI:10.48550/arxiv.1411.0246