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To improve efficiency of wide channel usage in dense scenarios, Wi-Fi community is currently developing a new amendment — 802.11ax — which introduces OFDMA in Wi-Fi. To provide backward compatibility, OFDMA works on top of CSMA/CA, native for Wi-Fi. Although OFDMA transmission is much more efficient than traditional one, the straightforward usage of 802.11ax functionality leads to the low ratio of...
Nowadays the concept of the Internet of Things (IoT) becomes more and more popular. However, state-of-the-art wireless technologies do not meet the IoT requirements for low power consumption and big number of simultaneously connected devices. To meet IoT requirements, IEEE 802.11 Working Group is developing a new low-power long-range Wi-Fi, called HaLow, which is described in the new IEEE 802.11ah...
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