A Comparative Study of Wireless Technologies Coexistence Mechanisms in IoT: A Survey

Abstract

The new communication model, Internet of Things (IoT) leads in the deployment of multiple and heterogeneous technologies in same frequency bands: the unlicensed bands. With the increase of connected devices, this cohabitation generates a lot of interferences which are the main source of performances degradation in wireless networks. In literature, coexistence of heterogeneous networks has been studied in many situations, especially in the WPAN (Wireless Personal Area Network) and WLAN (Wireless Local Area Network) colocation on 2.4 GHz band and in the spectrum sharing between Wi-fi and LTE (Long Term Evolution) on 5 GHz bands and not enough in IoT framework. The goal of this paper is to review wireless networks coexistence techniques developed on the MAC layer, then make a coexistence methods classification, bring a comparative analysis of these methods performances and finally study their adaptability in IoT context, regarding the applications, topologies, density and traffic.