Affiliation:
1. Faculty of Engineering Yokohama National University Yokohama Kanagawa Japan
2. Technology Unit Internet Initiative Japan Inc. Tokyo Japan
Abstract
AbstractIn the IEEE 802.11 specifications, a wireless fidelity (Wi‐Fi) access point (AP) broadcasts a beacon frame every 0.1024 s, and the received signal strength indicator (RSSI) is measured at a user terminal. RSSI is used as a metric for AP selection, but it does unlikely correlate with the actual quality of service, as has been pointed out in previous literature. In this letter, a simple metric is proposed that correlates with the effective throughput offered by a public Wi‐Fi AP. Specifically, the number of beacon frames within a time window is counted instead of using RSSI. The proposed metric can be easily calculated as it does not rely on advanced techniques such as machine learning. In a realistic IEEE 802.11a/n/ac network, the correlation coefficient between the proposed metric and the effective total throughput is 0.874 in the time window of 1 s, which is higher than a conventional metric, indicating the potential for low‐latency identification of whether a public Wi‐Fi AP can provide good throughput.
Publisher
Institution of Engineering and Technology (IET)
Subject
Electrical and Electronic Engineering
Reference14 articles.
1. IEEE Standard for information technology–telecommunications and information exchange between systems local and metropolitan area networks. In: IEEE Std 802.11‐2020 (Revision of IEEE Std 802.11‐2016) pp. 1–4379. IEEE Piscataway NJ(2021)
2. The IEEE 802.11 universe
3. Understanding channel selection dynamics in dense Wi-Fi networks
4. IEEE 802.11be Wi-Fi 7: New Challenges and Opportunities
5. IEEE 802.11ad: directional 60 GHz communication for multi-Gigabit-per-second Wi-Fi [Invited Paper]