5G Networks

2021 ◽  
pp. 708-741
Author(s):  
Noman Islam ◽  
Ainuddin Wahid Abdul Wahab
Keyword(s):  
Mobile Communication ◽  
Mobile Network ◽  
Future Research ◽  
5G Networks ◽  
Holistic View ◽  
Research Issues ◽  
Enabling Technologies ◽  
5G Network ◽  
New Generation ◽  
Roll Out

Mobile communication witnesses a new generation after every 10 years. Following the same trend, the roll out of next generation called 5G network is anticipated by 2020. In this chapter, a critical review of enabling technologies and research issues of 5G network is provided. The novelty of the chapter lies in providing a holistic view of 5G networks spanning discussions on technologies and issues across all the layers of protocol stack. Specifically, the chapter talks about the higher-level research issues of 5G network. The chapter is primarily structured as follows: It starts with a brief overview of various generations of mobile communication. Then, the problems with existing generation of mobile communication are presented, thus providing the motivation for a new generation of mobile network. A survey of different enabling technologies of 5G network is provided afterwards. After having brief discussions on key enablers, the chapter presents various research issues of 5G network. The chapter concludes with highlighting current challenges and future research issues.

5G Networks

2019 ◽  
pp. 37-70 ◽  
Author(s):  
Noman Islam ◽  
Ainuddin Wahid Abdul Wahab
Keyword(s):  
Mobile Communication ◽  
Mobile Network ◽  
Future Research ◽  
5G Networks ◽  
Holistic View ◽  
Research Issues ◽  
Enabling Technologies ◽  
5G Network ◽  
New Generation ◽  
Roll Out

Mobile communication witnesses a new generation after every 10 years. Following the same trend, the roll out of next generation called 5G network is anticipated by 2020. In this chapter, a critical review of enabling technologies and research issues of 5G network is provided. The novelty of the chapter lies in providing a holistic view of 5G networks spanning discussions on technologies and issues across all the layers of protocol stack. Specifically, the chapter talks about the higher-level research issues of 5G network. The chapter is primarily structured as follows: It starts with a brief overview of various generations of mobile communication. Then, the problems with existing generation of mobile communication are presented, thus providing the motivation for a new generation of mobile network. A survey of different enabling technologies of 5G network is provided afterwards. After having brief discussions on key enablers, the chapter presents various research issues of 5G network. The chapter concludes with highlighting current challenges and future research issues.

scholarly journals A Comprehensive Overview of TCP Congestion Control in 5G Networks: Research Challenges and Future Perspectives

Sensors ◽  
2021 ◽  
Vol 21 (13) ◽  
pp. 4510
Author(s):  
Josip Lorincz ◽  
Zvonimir Klarin ◽  
Julije Ožegović
Keyword(s):  
Congestion Control ◽  
Transmission Control Protocol ◽  
Mobile Network ◽  
Future Research ◽  
Core Network ◽  
5G Networks ◽  
Comprehensive Overview ◽  
Survey Paper ◽  
High Penetration ◽  
Reliable Communications

In today’s data networks, the main protocol used to ensure reliable communications is the transmission control protocol (TCP). The TCP performance is largely determined by the used congestion control (CC) algorithm. TCP CC algorithms have evolved over the past three decades and a large number of CC algorithm variations have been developed to accommodate various network environments. The fifth-generation (5G) mobile network presents a new challenge for the implementation of the TCP CC mechanism, since networks will operate in environments with huge user device density and vast traffic flows. In contrast to the pre-5G networks that operate in the sub-6 GHz bands, the implementation of TCP CC algorithms in 5G mmWave communications will be further compromised with high variations in channel quality and susceptibility to blockages due to high penetration losses and atmospheric absorptions. These challenges will be particularly present in environments such as sensor networks and Internet of Things (IoT) applications. To alleviate these challenges, this paper provides an overview of the most popular single-flow and multy-flow TCP CC algorithms used in pre-5G networks. The related work on the previous examinations of TCP CC algorithm performance in 5G networks is further presented. A possible implementation of TCP CC algorithms is thoroughly analysed with respect to the specificities of 5G networks, such as the usage of high frequencies in the mmWave spectrum, the frequent horizontal and vertical handovers, the implementation of the 5G core network, the usage of beamforming and data buffering, the exploitation of edge computing, and the constantly transmitted always-on signals. Moreover, the capabilities of machine learning technique implementations for the improvement of TCPs CC performance have been presented last, with a discussion on future research opportunities that can contribute to the improvement of TCP CC implementation in 5G networks. This survey paper can serve as the basis for the development of novel solutions that will ensure the reliable implementation of TCP CC in different usage scenarios of 5G networks.

Enabling Key Technologies and Emerging Research Challenges Ahead of 5G Networks: An Extensive Survey

2018 ◽  
Vol 2 (3) ◽  
pp. 133 ◽  
Author(s):  
C. Amali ◽  
B. Ramachandran
Keyword(s):  
Cellular Networks ◽  
Network Capacity ◽  
Network Function Virtualization ◽  
Smart Devices ◽  
Future Research ◽  
Technical Solution ◽  
5G Networks ◽  
Modulation Formats ◽  
Research Issues ◽  
Key Technologies

The evolution towards 5G networks is expected to slake the growing thirst of internet traffic with improved Quality of Service (QoS) and reduced energy consumption and cost. The increased penetration of smart devices and induction of arising multimedia applications, together with high quality video services are already crafting a milestone on existing cellular networks. These surging demands dictate that radical enhancements need to be made in cellular architecture to drift towards ultra-dense networks. The 5G system is envisioned to achieve improved data rate, increased capacity, decreased latency, and enhanced spectral efficiency in order to provide technical solution for the challenges behind the cellular networks. Thus, the 5G era is emerging to quench the increasing demand for network capacity, to manage explosive growth of traffic patterns and to face the challenges caused by the proliferation of versatile applications and high-end devices. In this paper, we make a broad survey on 5G cellular network architecture and some of the promising key technologies such as cloud RAN (Radio Access Network), Software-Defined Networking (SDN), Network Function Virtualization (NFV) and modulation formats. Finally, this ground-breaking survey highlights major existing research issues and possible future research directions in the next new era of mobile wireless networks.

scholarly journals Connected Objects Geo-Localization Based on SS-RSRP of 5G Networks

Electronics ◽  
2021 ◽  
Vol 10 (22) ◽  
pp. 2750
Author(s):  
Ahmed Bannour ◽  
Ahmed Harbaoui ◽  
Fawaz Alsolami
Keyword(s):  
Global Positioning System ◽  
Data Transfer ◽  
Quality Measurement ◽  
Mobile Network ◽  
5G Networks ◽  
5G Network ◽  
Global Positioning ◽  
Generation Network ◽  
Dense Urban Area ◽  
Set Up

The Global Positioning System (GPS) is not the only way to solve connected objects’ geo-localization problems; it is also possible to use the mobile network infrastructure to geo-locate objects connected to the network, using antennas and signals designed for voice and data transfer, such as the 5th generation network. 5G is considered as a least expensive solution because there is no specific equipment to set up. As long as the object is in an area covered by the network, it connects to the nearest 5G Micro-Cell (MC). Through exchange of signals with the MC node we can locate the object. Currently, this location is very fast with less than 5 s but not very precise because it depends on the number of MC antennas of the operator in question and their distance. This paper presents a novel technique to geo-locate connected object in a covered 5G area. We exploit the 5G SS-RSRP used for signal quality measurement, to estimate the distance between two Connected Objects (COs) in move and in a dense urban area. The overall goal is to present a new concept laying on the 5G SS-RSRP signalling. The proposed solution takes into consideration the Deterministic and the Stochastic effect of the received signals which is not treated by the previous works. The accuracy is optimum even after approaching to the distance of one meter which is not reached in previous works too. Our method can also be deployed in the upcoming 5G network since it relies on 5G signals itself. This work and that of Wang are both based on RSRP and give comparable theoretical complexities therefore comparable theoretical execution times as well. However, to obtain a reliable learning Wang requires a huge amount of data which makes it difficult to get a real time aspect of this algorithm. The use of RSRP and the elimination of the learning phase will give more chance to our work to achieve desired performances. Numerical results show the appropriateness of the proposed algorithms and good location accuracy of around one meter. The Cramer Rao Lower Bound derivations shows the robustness of the proposed estimator and consolidate the work.

scholarly journals Expanding GÉANT Testbeds Service to Support Pan-European 5G Network Slices for Research in the EuWireless Project

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Álvaro Rios ◽  
Barbara Valera-Muros ◽  
Pedro Merino-Gomez ◽  
Jerry Sobieski
Keyword(s):  
Mobile Network ◽  
5G Networks ◽  
Transport Networks ◽  
Network Slicing ◽  
Horizon 2020 ◽  
Wired Networks ◽  
Radio Access ◽  
5G Network ◽  
Potential Impact ◽  
Design Options

This paper presents the design options for creating a Pan-European mobile network for research in the context of the European Horizon 2020 EuWireless project. The most likely direction is a platform that makes it easier to create network slices for research. In this context, we identify one promising technology to implement network slicing in 5G networks: the framework GÉANT Testbeds Service (GTS). GTS is currently a production service by GÉANT that offers remote construction and use of virtual testbeds for wired networks mapped to the real GÉANT infrastructure. These GTS-virtualized testbed environments conform to Software Define Networks (SDNs) principles and offer compute, storage, and switching resources, at scale and with line rate performance. In this paper, we explain how the current (wired oriented) GTS can be extended with the 5G components, such as radio access nodes (gNBs), transport networks, user devices, etc., in order to implement 5G network slices. Our first conclusion is that using GTS for EuWireless implementation is feasible, dramatically increasing the potential impact of this service in the research community.

A set-theoretic approach to identifying effective configurations ofpromotional attributes

2021 ◽  
Vol 38 (6) ◽  
pp. 626-637
Author(s):  
Suntong Qi ◽  
Ling Peng ◽  
Yu-Jen Chen
Keyword(s):  
Purchase Intention ◽  
Field Data ◽  
Future Research ◽  
Theoretic Approach ◽  
Controlled Experiments ◽  
Brand Strength ◽  
Holistic View ◽  
Research Issues ◽  
Content Type ◽  
Integrative Effect

Purpose Most previous studies have indicated promotional attributes separately (e.g. time pressure, giveaways, price discounts, exclusivity) and found controversial effects. This paper aims to explore how different attributes can be aligned with each other and integrated with different levels of brand strength to influence sales or purchase intention according to the fit logic. Design/methodology/approach Both field data and controlled experiments are used to understand the effectiveness of promotion configurations. This paper first conducts an exploratory study using qualitative comparative analysis, based on 625 online promotion campaigns. This paper identifies several effective configurations of promotion attributes, leading to the development of two hypotheses. Three experiments are then designed to test the validity of these two hypotheses. Findings The results show that strong brands should adopt nonmonetary promotion, whereas weak brands should adopt monetary promotion; exclusivity and time limitation should be used separately. Research limitations/implications This paper provides empirical insights on how promotion elicits sales in terms of the configuration of promotional attributes and brand strength. This paper examines the integrative effect of types of giveaways, promotion duration and promotion target as well as brand strength on promotion effectiveness. Future research can explore other promotional attributes. This study is a first attempt to introduce and apply the set-theoretic approach to address strategic research issues and inform strategic decisions and managerial actions. Practical implications The findings can facilitate marketers’ understanding and predictions of deal recipients’ responses to promotions. Originality/value This paper adopts a holistic view to investigate how different promotion attributes interact with one another to stimulate sales. It explores the integrative effect from field data and finds converging evidence through a set-theoretic approach and controlled experiments.

Conclusion

2017 ◽  
Author(s):  
Georg Menz
Keyword(s):  
Energy Security ◽  
Renewable Energy Sources ◽  
Economic Transformation ◽  
Energy Sources ◽  
Future Research ◽  
Comparative Political Economy ◽  
Economic Sectors ◽  
Economic Changes ◽  
Culturally Based ◽  
Roll Out

This chapter summarizes some of the book’s main arguments and provides avenues for future research. We point to the ideational turn as well as to culturally based enquiries into Comparative Political Economy as offering particular promise. Finally, this chapter additionally points to two major sources of societal and economic transformation, discussing in passing other major economic changes, such as increasing automation, advances in artificial intelligence, and the roll-out of robots across a variety of economic sectors. These two potentially explosive sources of change include energy security, a field in which the race for autarchy is juxtaposed with limits to the practical applicability of renewable energy sources. Environmental factors and environmental degradation similarly impose dramatic constraints to further economic development and might induce a dramatic reconfiguration.

scholarly journals 5G Mobile Services and Scenarios: Challenges and Solutions

2018 ◽  
Vol 10 (10) ◽  
pp. 3626 ◽  
Author(s):  
Yousaf Zikria ◽  
Sung Kim ◽  
Muhammad Afzal ◽  
Haoxiang Wang ◽  
Mubashir Rehmani
Keyword(s):  
Mobile Network ◽  
Future Internet ◽  
Autonomous Driving ◽  
Mobile Services ◽  
Data Traffic ◽  
Fifth Generation ◽  
Wide Range ◽  
Industrial Iot ◽  
5G Network ◽  
Massive Number

The Fifth generation (5G) network is projected to support large amount of data traffic and massive number of wireless connections. Different data traffic has different Quality of Service (QoS) requirements. 5G mobile network aims to address the limitations of previous cellular standards (i.e., 2G/3G/4G) and be a prospective key enabler for future Internet of Things (IoT). 5G networks support a wide range of applications such as smart home, autonomous driving, drone operations, health and mission critical applications, Industrial IoT (IIoT), and entertainment and multimedia. Based on end users’ experience, several 5G services are categorized into immersive 5G services, intelligent 5G services, omnipresent 5G services, autonomous 5G services, and public 5G services. In this paper, we present a brief overview of 5G technical scenarios. We then provide a brief overview of accepted papers in our Special Issue on 5G mobile services and scenarios. Finally, we conclude this paper.

scholarly journals 6G Enabled Smart Infrastructure for Sustainable Society: Opportunities, Challenges, and Research Roadmap

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1709
Author(s):  
Agbotiname Lucky Imoize ◽  
Oluwadara Adedeji ◽  
Nistha Tandiya ◽  
Sachin Shetty
Keyword(s):  
Wireless Communication ◽  
Psychological Health ◽  
Future Research ◽  
Agriculture Education ◽  
Social Psychological ◽  
Research Issues ◽  
Data Intensive ◽  
Wireless Communication Network ◽  
Data Intensive Applications

The 5G wireless communication network is currently faced with the challenge of limited data speed exacerbated by the proliferation of billions of data-intensive applications. To address this problem, researchers are developing cutting-edge technologies for the envisioned 6G wireless communication standards to satisfy the escalating wireless services demands. Though some of the candidate technologies in the 5G standards will apply to 6G wireless networks, key disruptive technologies that will guarantee the desired quality of physical experience to achieve ubiquitous wireless connectivity are expected in 6G. This article first provides a foundational background on the evolution of different wireless communication standards to have a proper insight into the vision and requirements of 6G. Second, we provide a panoramic view of the enabling technologies proposed to facilitate 6G and introduce emerging 6G applications such as multi-sensory–extended reality, digital replica, and more. Next, the technology-driven challenges, social, psychological, health and commercialization issues posed to actualizing 6G, and the probable solutions to tackle these challenges are discussed extensively. Additionally, we present new use cases of the 6G technology in agriculture, education, media and entertainment, logistics and transportation, and tourism. Furthermore, we discuss the multi-faceted communication capabilities of 6G that will contribute significantly to global sustainability and how 6G will bring about a dramatic change in the business arena. Finally, we highlight the research trends, open research issues, and key take-away lessons for future research exploration in 6G wireless communication.

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