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\section{Introduction}  Wireless Sensor Networks (WPNs) are crucial to development of the Internet Of Things, yet these pose various challenges in terms of multiplexing, power efficiency, range and transmission speed. This document delivers high-level comparison of \textbf{IEEE 802.15.4}, \textbf{6LoWPAN}, \textbf{Bluetooth Low Energy}, \textvf{LoRa} \textbf{LoRa}  and \textbf{Narrowband-IoT}.