1. Low-power wide area network technologies for Internet-of-Things: a comparative review. IEEE IoT J (2018)
2. Kamarudin LM, Zakaria A, Gunasagaran R, Kanagaraj E, Alimon MSAM, Shakaff AYM, Razali MHM (2015) Internet of Things: sensor to sensor communication. In: 2015 IEEE Sensors
3. Esmail R, Mohammed FH (2015) Survey on IoT services. Int J Sci Res 4:2124–2127
4. Li H, Chen H, Jia X (2011) An introduction to IoT gateway. In: IET international conference on communication technologies and application (ICCTA 2011). IET, Beijing, pp 610–613
5. Meissner S, Thoma M, Meyer K, Braun T (2012) On survey, IoT-services, classification and enterprise integration. In: 2012 IEEE international conference on green computing and communications, Besancon, pp 257–260