Real-time optical wireless mobile communication with high physical layer reliability Using GRA Method
Authors: Chunduru Vinay , Gonepally Srinivas , Amuda Kishor Kumar , Kumbum Praveen Kumar , Adari Vijay Kumar 
Published: November 2024

The demand for mobile data communication is escalating, particularly at lower radio frequencies, exacerbating the spectrum crisis due to
rapid growth. To address the need for ultra-high data rate mobile communications, utilizing high frequencies such as millimeter waves becomes
imperative to tap into spectrum resources effectively. In mobile platform interconnections, the conventional standard of Free Space Optics (FSO)
usage presents numerous intriguing challenges within FSO setups, amplifying the complexity of establishing links between mobile platforms.
The paper examines barriers within mobile communications, particularly focusing on the connections between platforms and fixed Free Space
Optics (FSO) communications. It delves into several key challenges, such as alignment and monitoring issues, investigating the influence of weather
on connectivity, and ensuring seamless communication for reliable connections. The feasibility of these connections is also explored as part of
the study.In commercial, academic, and military sectors, there’s a continual drive for advancements in system designs, particularly in fiber optic
telecommunication. Leveraging Commercial Off-The-Shelf (COTS) technology from various fields, the focus remains on enhancing data rates and
utilizing modulation patterns within standard designs. To address existing limitations, this paper presents a novel approach centered around
mobile terminals. It introduces an analytical framework tailored for mobile Optical Wireless Communication (OWC) networks, which encompasses
capturing channel characteristics. Notably, the downlink utilizes visible light technology, while the uplink relies on infrared light transmission.
The communication protocol we’re developing is multi-technological and operates across multiple layers of networking. However, this presents
several challenges, particularly in supporting user mobility. One of the innovative technologies we’re exploring is Optical Camera Communication
(OCC).Our proposal involves conducting experimental validations to demonstrate the feasibility and effectiveness of OCC. This includes testing its
performance in various scenarios such as sea-mobile connections, land mobile connections, and satellite downlinks.In multi-hop wireless networks,
the utilization of Free-Space Optical (FSO) communication technology is imperative. Our approach involves employing FSO widely within these
networks. The broader significance of our work lies in its potential to revolutionize Optical Wireless Communication (OWC). However, it’s crucial
to note that FSO technology exhibits position sensitivity and may not be suitable for ultra-high throughput mobile communications.In industrial
manufacturing settings, there is a growing interest in utilizing Optical Wireless Communication (OWC). As this interest expands, it becomes crucial
to address challenging requirements such as reliability and low latency in application. Among the factors influencing this, the correlation coefficient
is determined through the use of GRA (Grey Relational Analysis). Additionally, factors impacting food security are being studied, with a focus on
a layered and multi-hierarchical architecture, where ISM (Industrial, Scientific, and Medical) frequencies are employed for installation purposes.
Infant formula and milk disinfection data in China were analyzed using the GRA-ISM method, incorporating hierarchical analysis. This classical
approach expands the utility of the GRA method to new applications. Additionally, the proposed method was illustrated using a case study on Electric
Vehicle Charging Stations (EVCS) for site selection. Furthermore, the proposed method was applied to assess the quality of pasteurized milk and to
conduct risk assessment, demonstrating the effectiveness of the GRA-HMM method in achieving high accuracy in risk assessment results.Ubiquity
Design is got the first rank whereas is the Flexibility is having the Lowest rank.
Keywords: Ubiquity, Flexibility, Accessibility, High Bandwidth and Low Attenuation.