What is it about?
In this Letter we describe an analytical model to estimate the performance of the carrier sense multiple access with collision avoidance (CSMA/CA) protocol during the simultaneous transmit/receive (STR) operation of the upcoming IEEE 802.11ax amendment for WLANs. Furthermore, based on that model, we propose an enhancement to the operation of CSMA/CA to increase its performance during the STR mode.
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Why is it important?
This Letter has a dual purpose. First, we examine the performance of the current MAC-layer functionality (i.e., CSMA/CA) during STR mode in IEEE 802.11ax WLANs. To accomplish that goal, an analytical model based on Markov chains is provided. Since the IEEE 802.11ax standardisation process is still ongoing, we believe that such a study is necessary in order to establish a performance reference point. Next, we describe an enhancement modification to the functionality of the CSMA/CA protocol in order to facilitate the STR operation mode.
Perspectives
We hope that this work will help the design of a suitable MAC-layer protocol for STR mode in IEEE 802.11ax WLANs.
Anastasios Politis
Technological and Educational Institute of Central Macedonia
Read the Original
This page is a summary of: CSMA/CA analysis and enhancement for IEEE 802.11ax WLANs operating in STR mode , Electronics Letters, April 2018, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/el.2018.0716.
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