New Cloud-Based Service for Broadcasting and Identification for Solving Data Traffic Re-Using for Mobile Communications

Abstract

In recent decades, the majority of mobile communications data traffic has relied on RF technology. Even if optimization efficiency for use or reuse is implemented, there are limits to the growing traffic demand for RF communications. Visible light communications (VLC) is a new technology that can work with RF to overcome these limitations. The standard for VLC was published in 2011 as IEEE 802.15.7, which specifies specifications for the MAC layer and PHY layer. This standard is one of the first for this technology. The light emission decoding operation at the receiver in IEEE 802.15.7 is mainly based on photo detectors. However, with the development of image sensors (photodiode arrays) in smart devices, changes to the IEEE 802.15.7 specification are being considered. This expansion will primarily focus on communications with image sensors, called optical camera communications (OCC). In this paper, we analyze the performance of camera communication systems based on different types of image sensor architectures. We then propose OCC-ID, a novel streaming service application that uses camera communication and a cloud model. The proposed architecture is a general implementation scenario for camera communications. Optical camera communication has great potential in future wireless communications due to the advantages of VLC and business trends. A revision of the IEEE 802.17.5 standard is currently under study. However, OCC's issues regarding timing, data rate, and interference still need to be resolved. Synchronization is an important issue because the signal received from the camera is a discrete image from the transmitter without any feedback information and because camera communication applications are based on a transmission topology. Roller blinds have more advantages in terms of timing than overall blinds. In this study, we present and evaluate the performance of two image detection techniques, namely rolling shutter and global shutter. The performance of the two image sensors and their considerations will play an important role in the standard's contribution. Finally, we propose a new service application for OCC based on cloud architecture, called OCC-ID. Invisible identification can be accomplished using visible light communications, camera communications, and cloud computing technology. The ID is integrated into the optical channel using OOK or OOK frequency shift modulation. The receiver uses the camera to decode the information embedded in the LED and then transmits it to the cloud server transmission link based on the detected ID. The OCC-ID system shows the advantages of dynamic content management compared to traditional identification systems.