Public mobile network for IoT device communication

Internet stvari je dio digitalne transformacije koja obuhvaća cijelo društvo i zajednicu, a područja primjene su poprilično raznolike. Tijekom zadnjih nekoliko godina su objavljena M2M komunikacijska rješenja koja povezuju uređaje i aplikacije kojima upravljaju ljudi. Postoji nekoliko globalnih standarda koji standardiziraju M2M komunikacijska rješenja, a neka od njih su One M2M koji objedinjuje standarde različitih svjetskih krovnih organizacija i 3GPP koji se nalazi iza evolucije i održavanja sustava pokretne mreže. NB-IoT i LTE-M su IoT standardi koji se ističu za javnu pokretnu mrežu, a oni djeluju u licenciranom spektru unutar redovne LTE mreže i koegzistiraju s ostalim dostupnim LTE mrežnim uslugama. U ovom radu je posebna pozornost posvećena NB-IoT tehnologiji. Glavne komponente NB-IoT tehnologije koje su pokazatelj uspješnosti su da se pokrivenost toliko proširila da dohvaća zabačena i nepristupačna područja, visok kapacitet koji može podržati masovni IoT i velik broj uređaja i podataka, prihvatljivo kašnjenje, mala složenost uređaja, dug vijek baterije te vršne brzine prijenosa koje ne opterećuju sustav. U praktičnom dijelu rada su proučeni razni simulatori s mogućnošću simulacije IoT-a. U Visual System Simulator-u i LTE Toolbox-u su provedene simulacije u kojima su slani podaci preko NB-IoT tehnologije i analizirane njezine mogućnosti.The Internet of Things is part of a digital transformation which includes whole society and community with many various areas of application. Over the past few years, a significant number of M2M communication technologies have been developed and released which improves connection between smart devices and applications. There are several global standards that standardize M2M communication solutions and some of them are One M2M which combines the standards of various global organizations and 3GPP which is behind the evolution and maintenance of cellular networks. NB-IoT and LTE-M are IoT standards that stand out for the cellular network and they operate in the licensed spectrum within the regular LTE network and coexist with other available LTE network services. In this paper, special attention is paid to NB-IoT technology. The main components of NB-IoT technology that are an indicator of success are that coverage has expanded so much that it reaches remote and inaccessible areas, high capacity which can support massive IoT and a large number of devices and data, acceptable latency, low device complexity, long battery life and peak rates that do not overload the system. In the practical part of the paper, various simulators with the possibility of IoT simulation were studied. Simulations were performed in Visual System Simulator and LTE Toolbox in which data were sent via NB-IoT technology and where its capabilities were analyzed