Adaptive Spectrum Aggregation Regimen for Downlink NR-gNodeB and Device to Device Systems in 5G
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Adaptive Spectrum Aggregation Regimen for Downlink NR-gNodeB and Device to Device Systems in 5G Naveena A. Priyadharsini1 · S. Tamil Selvi2 Accepted: 29 October 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Device to device communication (D2D) and internet of things are anticipated to rule the globe in the upcoming days. The ever increasing demand for data traffic and throughput pose a unique venture in fifth generation (5G) industry, including limited spectrum and mass device connectivity. The proposed system signifies the specifications putforth by third generation partnership project for D2D communication underlying cellular network. It is highly focused on design and development of its physical layer and link layer. This hybrid 5G non-standalone system is adaptive to operate in different frequency bands. Since the users of D2D and new radio g-NodeB apportion same spectrum, interference would be the resultant. To quell such interference effects and also to maintain high capacity and throughput, here two mechanisms, namely spectrum aggregation and scheduling are emphasized. More over scheduling on component carriers are implemented successfully. At the end, the experimental outcomes prove that the aforementioned two methods results in rapid data transfer rate and eminent capacity with 0.5 ms latency in the controlled path loss environment. Keywords 5G · D2D · gNodeB · Spectrum aggregation · Component carriers
1 Introduction Today the Internet becomes the backbone of entire communication system. There are billions of cellular and data users in the Geography. Since the globe rotates in the axis of wireless technology, there is a huge demand for cellular traffic. Now a days handheld devices are enriched with artificial intelligence, so they not only used for personal communication but also for multitasking such as live video streaming, home automation, health monitoring, on line computations, IoT etc. Also the 5G communication system encourages device to device communication and smart applications. Here the devices are operated under heterogeneous network fashion. This too increases the demand for radio resources.
* Naveena A. Priyadharsini [email protected] 1
ECE Department, Arunachala College of Engineering for Women, Kanyakumari District, India
2
ECE, National Engineering College, Kovilpatti, India
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N. A. Priyadharsini, S. Tamil Selvi
The 3GPP is highly involved in the design and implementation of 5G. The requirements and design specifications of 5G system are stated in its release 15 and 16 [1, 2]. Accordingly it expects a drastic increase in the capacity of the system, throughput, spectral efficiency and faster connectivity. Also data rate is expected in Giga bits Per Second (Gbps) with minimal latency. So we are insisted to migrate to a new technology. The upcoming 5G system relies on D2D communication and IoT with artificial intelligence and avoids the human interactions. Also to fuel the ever increasing spectral demand in 5G cell
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