Features of voice traffic transmission using IEEE 802.11ac wireless networks
DOI:
https://doi.org/10.30837/rt.2024.1.216.09Keywords:
codec, network, prioritization, quality, telephony, voice, wirelessAbstract
The purpose of the research is to find out the features of voice traffic transmission for the organization of IP telephony service in office premises using the IEEE 802.11ac network to ensure the high-quality provision of the specified service for a sufficiently large number of users even in the case of intensive transmission of a mixed traffic. The analytical study is based on traditional probabilistic approaches to evaluating the operational characteristics of wireless networks of the 802.11 standard. The 802.11ac network with a channel bandwidth of 20 MHz in the mode with one spatial stream was studied. In the specified network, a scenario was considered in which, for the provision of IP-telephony services, prioritization was carried out in accordance with the IEEE 802.11e specification, with AC_VO priority given to a voice traffic, and AC_BK priority to other data transmitted over the same network. It is mathematically substantiated that if there are stations in the IEEE 802.11ac network transmitting low-priority traffic of the AS_BK class, even under saturated load conditions, the simultaneous operation of a large number of stations transmitting voice traffic is possible. Estimates of the effect of frame sizes of low-priority traffic, as well as the impact of collisions on conditions of voice traffic transmission are obtained. The work uses an original method of studying the conditions of transmission of high-priority traffic in networks with a mixed load. The research results will be useful to specialists in the field of planning and maintenance of IEEE 802.11 wireless networks to ensure high quality indicators of voice services.
References
Cameron Johnson . What Is VoIP? The Newbie’s Guide to Voice over IP. URL:
https://www.nextiva.com/blog/what-is-voip.html
Josh Epstein. 5 Ways to Troubleshoot WiFi Issues with VoIP. URL: https://telzio.com/blog/5-ways-troubleshoot-wifi-voip
How to optimize your Wi-Fi network for VoIP. URL: https://info.teledynamics.com/blog/how-to-optimize-your-wi-fi-network-for-voip
802.11 QoS Tutorial. URL: https://www.ieee802.org/1/files/public/docs2008/avb-gs-802-11-qos-tutorial-1108.pdf
Matthew S. Gast. 802.11ac: A Survival Guide. O'Reilly Media, 136 p., USA, 2015. URL: https://freecomputerbooks.com/802.11ac-A-Survival-Guide.html
Why and How To Implement Wi-Fi QoS? URL: https://community.fs.com/article/why-and-how-to-implement-wifi-qos.html
Wireless VoIP QoS Best Practices. (Last updated Aug 24, 2023). URL: https://documentation.meraki.com/Architectures_and_Best_Practices/Cisco_Meraki_Best_Practice_Design/Best_Practice_Design_-_MR_Wireless/Wireless_VoIP_QoS_Best_Practices
Joe Manna. What Is VoIP QoS & How Does It Improve Call Quality? November 2, 2023. URL: https://www.nextiva.com/blog/voip-qos.html
Howard. Why and How To Implement Wi-Fi QoS? December 21, 2023 – URL: https://community.fs.com/article/why-and-how-to-implement-wifi-qos.html
Voice Codecs. URL:https://www.gl.com/voice-codecs.html
The wonderful world of voice codecs. URL:https://info.teledynamics.com/blog/the-wonderful-world-of-voice-codecs
Chuck Lukaszewski, Liang Li. Very High-Density 802.11ac Networks Theory Guide // Aruba Networks, 62 p. URL: https://howwirelessworks.com/wp-content/uploads/Aruba_VHD_VRD_Theory_Guide.pdf.
IP Protocol Header Fundamentals Explained with Diagrams. URL: https://www.thegeekstuff.com/2012/03/ip-protocol-header/
Daniel Andrews. VoIP vs. VoWiFi: Comparing Benefits & Highlighting Differences. URL:
https://www.calilio.com/blogs/voip-vs-vowifi-comparison-differences
White Paper of Home Wi-Fi Networks with Optimal User Experience. URL: https://carrier.huawei.com/~/media/CNBG/Downloads/Technical%20Topics/Fixed%20Network/White%20Paper%20of%20Home%20Wi-Fi%20-en.pdf
Interframe Space (RIFS, SIFS, PIFS, DIFS, AIFS, EIFS). URL: https://wifisharks.com/2020/11/14/interframe-space/
Wi-Fi Signal Attenuation. URL: https://blog.wavlink.com/en-us/article/TechnicalNews/92442c2444eaa02541dd27fe90bed782.html
Lazebnyi V.S., Yin Ch., Omelyanets O.O. Doslidzhennya realnoyi propusknoyi zdatnosti bezdrotovoyi informatsiynoyi merezhi spetsyfikatsiyi 802. [Study of the real bandwidth of the wireless information network of the 802.11n specification.] // Scientific notes of the Tavria National University named after V. I. Vernadsky Series: Technical Sciences. 2018. № 5. Part 1.Vol. 29 (68). Р. 155–160.
Lazebnyi V.S., Yin Ch. Estimation of probabilistic processes in wireless networks of 802.11 standard // Microsystems, electronics and acoustics. 2017. № 5. Р. 47–53. URL: https://www.researchgate.net/publication/322016385_Estimation_of_probabilistic_processes_in_wireless_networks_of_80211_standard
Downloads
Published
How to Cite
Issue
Section
License
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).