Wi-Fi was originally designed to provide broadband wireless Internet access for devices which generate rather heavy streams. And Wi-Fi succeeded. The coming revolution of the Internet of Things with myriads of autonomous devices and machine type communications (MTC) traffic raises a question: can the Wi-Fi success story be repeated in the area of MTC? Started in 2010, IEEE 802.11 Task Group ah (TGah) has developed a draft amendment to the IEEE 802.11 standard, adapting Wi-Fi for MTC requirements. The performance of novel channel access enhancements in MTC scenarios can hardly be studied with models from Bianchi's clan, which typically assume that traffic load does not change with time. This paper contributes with a pioneer analytical approach to study Wi-Fi-based MTC, which can be used to investigate and customize many mechanisms developed by TGah.
翻译:Wi-Fi最初的设计是为产生相当重流的装置提供宽带无线互联网接入。Wi-Fi成功。即将到来的具有各种自主装置和机器类型通信(MTC)交通量的事物互联网革命提出了一个问题:无线-Fi成功故事能否在MTC领域重演?始于2010年,IEEE 802.11工作组(TGah)已经制定了IEEE 802.11标准的修正案草案,根据MTC的要求调整了Wi-Fi。在MTC情景中新增加频道接入的功能很难用比安奇氏部族的模式进行研究,这些模式通常假定交通量不会随时间变化。本文为研究Wi-Fi MTC提供了先导性的分析方法,该方法可用于调查和定制TGah开发的许多机制。