Introduction to the Special Issue: Applications of Internet of Things

Abstract

This editorial introduces the special issue, entitled “Applications of Internet of Things”, of Symmetry. The topics covered in this issue fall under four main parts: (I) communication techniques and applications, (II) data science techniques and applications, (III) smart transportation, and (IV) smart homes. Four papers on sensing techniques and applications are included as follows: (1) “Reliability of improved cooperative communication over wireless sensor networks”, by Chen et al.; (2) “User classification in crowdsourcing-based cooperative spectrum sensing”, by Zhai and Wang; (3) “IoT’s tiny steps towards 5G: Telco’s perspective”, by Cero et al.; and (4) “An Internet of things area coverage analyzer (ITHACA) for complex topographical scenarios”, by Parada et al. One paper on data science techniques and applications is as follows: “Internet of things: a scientometric review”, by Ruiz-Rosero et al. Two papers on smart transportation are as follows: (1) “An Internet of things approach for extracting featured data using an AIS database: an application based on the viewpoint of connected ships”, by He et al.; and (2) “The development of key technologies in applications of vessels connected to the Internet”, by Tian et al. Two papers on smart home are as follows: (1) “A novel approach based on time cluster for activity recognition of daily living in smart homes”, by Liu et al.; and (2) “IoT-based image recognition system for smart home-delivered meal services”, by Tseng et al.

A Survey of Common IOT Communication Protocols and IOT Smart-X Applications of 5G Cellular

“…The LoRaWAN architecture has three main components which are the Internet server, the gateway (GW), and the terminal nodes (Fig. 6) [9][10][11][12][13][14][15][16].…”

“…5G network and 5G based IOT will undoubtedly provide the infrastructures for disaster recovery due to 5G transfer speed, high flexibility, strong security, and low energy consumption. However, no smart grid has started applying 5G technology [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

“…Some organizations are working for equipping homes with technology that allows people to utilize one device to regulate and monitor all electronic devices. This technology targets to environmental monitoring, power management, subsidized living, comfort and convenience, and compatible platforms that use intelligent sensor networks to produce status information of the house [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17].…”

“…The IOT is connecting the industry or factory to a full new range of applications throughout the assembly process. It ranges from connecting factories and industries to the smart grid, machine auto-diagnosis, and assets control, sharing production facilities as services, or enabling greater flexibility and within the assembly system itself and monitoring of temperature or air quality indoor or outdoor [5][6][7][8][9][10][11][12][13][14][15].…”

A Mobile Positioning Method Based on Deep Learning Techniques

“…, and 1,1 b are proved and calculated by Equations (14), (15), (16), (17), (18), (19), (20), (21), (22), and (23), respectively.…”