Abstract
The aim of this article is to evaluate the applicability of 5G technology as a possible ambient signal for backscattering communications (AmBC). This evaluation considers both urban macro-cellular, small cell as well as rural highway environments. The simulations are performed in outdoor areas including analysis about 5G implementation strategies in different scenarios. Essential aspects of 5G radio network topology such as frequency domain (3.5 GHz and 26 GHz) and antenna locations (offering line-of-sight, LOS) are highlighted and turned to applicability scenarios with AmBC. The LOS scenarios are evaluated to determine the widest applicability area of 5G for AmBC. Typical AmBC applications are studied including collection of data from several sensors to receivers. Evaluation of the applicability of 5G was based on propagation related simulations and calculations utilising the ray tracing technique and the radar equation. The results demonstrate that 5G can be used as an ambient signal for backscattering communications for short ranges for typical sensor sizes. It is also observed that the range of communication is heavily dependent on the the size of the sensor.
Highlights
The internet of things (IoT) is a wireless communication paradigm where sensors are utilised to collect information from the surrounding environment
The aim was to perform propagation simulations in outdoor environments to analyse different ambient signal for backscattering communications (AmBC) configurations and geographical areas which can be supported by 5G networks
The AmBC configurations at most typical 5G frequencies of 3.5 GHz and 26 GHz were analysed and it was expected that LOS communication was available between the TX/RX antenna and the sensor
Summary
The internet of things (IoT) is a wireless communication paradigm where sensors are utilised to collect information from the surrounding environment. These sensors may have the capability to measure a multitude of parameters such as temperature, humidity, location, etc. Some of the use cases of these sensors include traffic, atmosphere, health and environment monitoring. They have the capability to communicate among themselves and with a central server. IoT devices are envisioned to be connected to each other along-with the Faculty of Information Technology and Communication Sciences, Tampere University (Hervanta Campus), Korkeakoulunkatu 1, Tampere 33720, Finland internet in order to exchange and transfer different types of data. The fifth generation (5G) of mobile communications is being developed with the provision of supporting the data needs for such a variety of devices
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