What is it about?
channel observation-based scaled backoff (COSB) mechanism is based on channel collision probability to adaptively increase and decrease contention window size. The COSB mechanism enhances the WLAN efficiency of highly dense networks.
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Why is it important?
The current implementation of backoff mechanism in WLANs is a blind increase/decrease of contention window process. The efficiency of current mechanism drastically degrades with the increase of the number of contenders. However, the proposed COSB mechanism is purely medium observation-based and adjusts the contention window size based on the observed channel collision probability. This characteristic of COSB results in enhanced network performance in terms of throughput and delay.
Perspectives
Writing this article was a great pleasure as it has co-authors with whom I have had long-standing collaborations.
Rashid Ali
Yeungnam University
Read the Original
This page is a summary of: Channel observation-based scaled backoff mechanism for high-efficiency WLANs , Electronics Letters, April 2018, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/el.2018.0617.
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