scholarly journals CHANNEL ALLOCATION FOR WIRELESS NETWORKS BASED ON INTELLIGENT METHOD

2021 ◽  
Vol 20 (4) ◽  
pp. 32-37
Author(s):  
Dominik NEZNÍK ◽  
◽  
Ľubomír DOBOŠ
Keyword(s):  
Wireless Networks ◽  
Data Transfer ◽  
Channel Allocation ◽  
Smart Cities ◽  
Data Rates ◽  
Different Types ◽  
Fuzzy Logic Method ◽  
Network Technologies ◽  
Near Future

In this paper, will be presented actual research of the intelligent channel allocation. The intelligent channel allocation is based on combination of fuzzy logic method and game theory attributes to increase quality of link in network. The channel allocations will become an important phenomenon in different types of networks such as 5G technology, wireless networks (IEEE 802.11xx), Z-Wave, LoRa, 3G, 4G, etc. In the near future, new network technologies, Internet of Things (IoT) and Smart Cities will need to have intelligent channel allocation to prevent interference on the channels used for data transfer. These networks along with IoT are considered as promising technology, that interconnects different types of networks into one fully functional network. The aim of this paper is to present the concept of a methods for channel allocation in wireless networks, where channels work as communication medium based on IEEE 802.11xx technology. The simulations prove, that proposed method is able to provide lower interference, improve data rates and increase quality of links.

scholarly journals A Secure Optimization Algorithm for Quality-of-Service Improvement in Hybrid Wireless Networks

2021 ◽  
Vol 3 (1) ◽  
pp. 1-10
Author(s):  
Smys S ◽  
Wang Haoxiang
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Optimization Algorithm ◽  
Communication Systems ◽  
Data Transfer ◽  
Mesh Networks ◽  
Service Improvement ◽  
Complex Data ◽  
Hybrid Wireless Networks

Various industrial, scientific and commercial processes involve wireless mesh networks in the recent days. These technologies improve communication technology to a large extent which has led to an increase in utilization of these systems in various fields. In application with intense and complex data flow, improving the quality of service (QoS) has been a challenge and a focus of research leading to more advanced wireless communication systems. This paper provides a novel optimization algorithm for improving the QoS in hybrid wireless networks while preventing malware and routing attacks. The concept of QoS and hybrid wireless networks are examined at the initial stage. Further, the algorithm for optimizing the service quality in the network is proposed accordingly. The ability of data transfer is benefited by data packets in this algorithm. Load distribution is performed such that overcrowding is prevented and information routing is done efficiently though the nodes. Delay or routing is created and control messages are sent for withholding data when certain nodes are overcrowded. This reduces the delay created by overcrowding by 50% while maintaining the permittivity.

scholarly journals The Impact of Heterogenous Ultra-dense Network Technologies on the Performance of 4G and 5GNetworks

2020 ◽  
Vol 10 (1) ◽  
pp. 35-44
Keyword(s):  
Cost Effective ◽  
Cellular System ◽  
Small Cells ◽  
High Expectations ◽  
Dense Networks ◽  
High Data ◽  
Data Rates ◽  
Network Technologies ◽  
The Impact

The flood of applications that demand massive data has imposed a challenge for 5G cellular network in order to deliver high data rates, a better quality of service, and low energy consumption. Heterogenous ultra- dense networks are one of the major technologies to address such challenges. HUDNs play a big role in a cellular system. They deliver cost-effective coverage with low transmit power and high capacty to face the risen data and the high expectations of the user's performance. In this paper, we introduce the impact of small cells on the cellular system and the technologies the small cells utilize to make the cellular system faces the subscriber's demands. First, we discuss the fundamentals of used technologies in small cells. Next, we studied the small cell management. Then, self-organizing networks are studied. After that, we have reviewed the small cell's power consumption, mobility, and handover. Finally, the real-world experience of mm-waves and MIMO in 5G small cells

scholarly journals The Accuracy of Differential Monorestitution Relative to Conventional Data Transfer Methods for Aerial Photographs

1997 ◽  
Vol 14 (4) ◽  
pp. 183-188
Author(s):  
Jean-Marie Bilodeau ◽  
Kim Lowell
Keyword(s):  
Data Transfer ◽  
Aerial Photographs ◽  
Comparable Amount ◽  
Computing Power ◽  
Different Types ◽  
Efficient Alternative ◽  
Manual Methods ◽  
Forest Maps ◽  
Conventional Methods

Abstract Forest maps are still today being constructed predominantly by transferring information from aerial photographs to maps using relatively imprecise manual tools such as a Sketchmaster. (Another name for this or a similar apparatus is a Zoom Transfer Scope.) Such devices correct for as much photographic distortion as possible using relatively crude manual methods. New geomatics¹ technologies like differential monorestitution (DM) coupled with modern computing power provide an efficient alternative for this data transfer which has the potential to improve the quality of the final forest maps. But the question remains: what is the magnitude of the locational improvement possible with DM and how is it affected by different topography? A study was undertaken to answer this question. Comparisons between DM and conventional data transfer/mapping methods were conducted for forest maps on which three different types of topography were present. The results from each method were also compared to GPS points recorded along a road. Results suggest that DM provides a considerable improvement in accuracy over conventional methods for transferring information from aerial photographs to orthographic maps in forestry. Moreover, DM requires a comparable amount of operator time as conventional methods to obtain this improvement. North. J. Appl. For. 14(4):183-188.

Wireless Technologies

2010 ◽  
pp. 1244-1255 ◽  
Author(s):  
Simona Fabrizi
Keyword(s):  
Wireless Networks ◽  
Theoretical Explanation ◽  
Additional Cost ◽  
Apparent Paradox ◽  
Wireless Technologies ◽  
Different Types ◽  
Upgrading Strategies ◽  
Do So

Mobile Operators (MOs) in several countries are constantly challenged with the urge to further enhance the quality of their existing wireless networks, often dictated by the need to meet the newest technological standards as progress in wireless technologies is made. While the pressure to upgrade wireless networks is constantly felt by MOs in this market, it is not uncommon to observe some MOs upgrading their networks earlier than others. This article provides a theoretical explanation for this apparent paradox of why some MOs postpone the upgrading while others do not. It is shown that in the presence of different types of users - conservative versus quality-seeking - MOs may find it more profitable to adopt asymmetric upgrading strategies. Furthermore, it is argued that the incentives by some MOs not to upgrade are the largest when the share of conservative users in the market is sufficiently high, relative to the additional cost that upgrading entails. In such a case the MOs that do not upgrade their networks enjoy higher profits than the ones that do so.

Urban Development Through Smart Cities in India

2016 ◽  
Vol 3 (3) ◽  
pp. 36-49 ◽  
Author(s):  
Neeta Baporikar
Keyword(s):  
Smart City ◽  
Smart Cities ◽  
Democratic Governance ◽  
Management Control ◽  
Shared Knowledge ◽  
Paradigm Shifts ◽  
City Life ◽  
Urban Problems ◽  
Near Future

India is on the path of developing its smart cities at a faster pace in near future. But what constitutes a smart city and what is purpose of this focus remains to be explored. Through in depth literature review and grounded approach this paper, appraises the genesis of smart city to develop a better understanding of urban problems. It explores how smart cities intend to relate the infrastructure, operational functioning, planning through management, control and optimization to ensure equity, fairness for realizing better quality of city life. The paper also attempts to review how informed participation creates shared knowledge for democratic governance. Anticipated paradigm shifts that will occur in this area of research and the expected impacts in developing and planning smart cities in general and in particular the steps being taken in India in development of smart cities is delved into.

Security in Mobile Ad Hoc Networks

2009 ◽  
pp. 541-558 ◽  
Author(s):  
Ekata Mehul ◽  
Vikram Limaye
Keyword(s):  
Wireless Networks ◽  
Quality Of Service ◽  
Mobile Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Transfer ◽  
Research Work ◽  
Secure Routing ◽  
Hoc Networks ◽  
Network Administrators

Securing a “Wireless Ad Hoc Network” (WAHN) is a major concern of network administrators. This is particularly so in case of the wireless networks due to their unique characteristics that varies from the traditional networks. For example, WAHN are vulnerable to internal as well as external attacks relatively easily, as compared with traditional networks, because of their ability to be accessible from anywhere within their range. Many solutions have been proposed in this area and they are also being continuously improved. Most of these solutions involve encryption; secure routing, quality of service, and so forth. However, each of these solutions is designed to operate in a particular situation; and it may fail to work successfully in other scenarios. This particular research work offers an alternate to improving the trustworthiness of the neighbourhood and securing the routing procedure. This security is achieved by dynamically computing the trust in neighbours and selecting the most secure route from the available ones for the data transfer. There is also a provision to detect the compromised node and virtually removing it from the network.

scholarly journals Multilayered Network Model for Mobile Network Infrastructure Disruption

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5491
Author(s):  
David Hrabcak ◽  
Lubomir Dobos ◽  
Jan Papaj ◽  
Lubos Ovsenik
Keyword(s):  
Network Model ◽  
Ad Hoc ◽  
Mobile Network ◽  
Network Infrastructure ◽  
Safety And Health ◽  
Network Concept ◽  
Different Types ◽  
Hoc Networks ◽  
Network Technologies ◽  
Near Future

In this paper, the novel study of the multilayered network model for the disrupted infrastructure of the 5G mobile network is introduced. The aim of this study is to present the new way of incorporating different types of networks, such as Wireless Sensor Networks (WSN), Mobile Ad-Hoc Networks (MANET), and DRONET Networks into one fully functional multilayered network. The proposed multilayered network model also presents the resilient way to deal with infrastructure disruption due to different reasons, such as disaster scenarios or malicious actions. In the near future, new network technologies of 5G networks and the phenomenon known as the Internet of Things (IoT) will empower the functionality of different types of networks and interconnects them into one complex network. The proposed concept is oriented on resilient, smart city applications such as public safety and health and it is able to provide critical communication when fixed network infrastructure is destroyed by deploying smart sensors and unmanned aerial vehicles. The provided simulations shows that the proposed multilayered network concept is able to perform better than traditional WSN network in term of delivery time, average number of hops and data rate speed, when disruption scenario occurs.

scholarly journals Research of Various Techniques for Evaluating Nodal Trust in Hierarchical WSN

2019 ◽  
Vol 8 (2S11) ◽  
pp. 894-899
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Data Transfer ◽  
Smart Cities ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Modern World ◽  
Collaborative Behavior ◽  
Different Types ◽  
Trust Models

In today’s modern world the wireless sensor networks have become a crucial tool to serve various purposes. The applications falling in range of wireless sensor networks are vast and tend to conquer our everyday life. It was initially designed for surveillance and monitoring for defense related operations but then it also proved to be boon for the health, traffic, consumer and industrial areas. Also, it is one of the most popular technologies for smart cities. However, the wireless sensor networks are highly prone to security attacks, and due to the dynamic, collective and collaborative behavior of sensor networks a secure data transfer has become a challenging task. The deployed sensor nodes, especially in the multi hop environment can get compromised and can behave maliciously. Therefore it becomes necessary to assess the trust worthiness or reliance of the sensor node over the other present in the network. Several researches have investigated various techniques for determining the nodal trust in WSN. This paper discusses the major challenges in wireless sensor network, potential attacks occurring due to compromised nodes along with the different types of trust models. It also figures out some of the existing trust models which are used in evaluating nodal trust in wireless sensor networks.`

scholarly journals A Testbed for GNSS-Based Positioning and Navigation Technologies in Smart Cities: The HANSEL Project

Smart Cities ◽  
2020 ◽  
Vol 3 (4) ◽  
pp. 1219-1241
Author(s):  
Alex Minetto ◽  
Fabio Dovis ◽  
Andrea Vesco ◽  
Miquel Garcia-Fernandez ◽  
Àlex López-Cruces ◽  
...  
Keyword(s):  
Smart Cities ◽  
Low Cost ◽  
Satellite System ◽  
Cooperative Positioning ◽  
Snapshot Positioning ◽  
Gnss Receivers ◽  
Urban Contexts ◽  
Global Navigation Satellite ◽  
Network Technologies

In urban contexts, the increasing density of electronic devices equipped with Global Navigation Satellite System (GNSS) receivers and complementary positioning technologies is attracting research and development efforts devoted to an improvement of the quality of life towards the smart city paradigm. Vehicular and pedestrian positioning and navigation capabilities are among the major drivers for innovation in this process. Ultra-low-cost electronics such as smartphones and Internet of Things (IoT) sensors aim at providing accurate and reliable positioning solutions through a set of promising solutions. Among these, snapshot positioning allows to remotely perform the post-processing of GNSS signals in IoT sensor networks while Wi-Fi™ ranging and cooperative positioning provide auxiliary anchors of opportunity to enhance indoor/outdoor positioning capabilities. This paper presents an innovative platform to perform a centralised testing and assessment of such positioning and navigation technologies along with a set of results obtained in the context of the European project HANSEL, by relying on current network technologies and infrastructures (i.e., Wi-Fi™ and cellular connectivity).

Analysis of Internet of Things Based on Characteristics, Functionalities, and Challenges

2021 ◽  
Vol 5 (1) ◽  
pp. 44-62
Author(s):  
Ganesh Khekare ◽  
Pushpneel Verma ◽  
Urvashi Dhanre ◽  
Seema Raut ◽  
Ganesh Yenurkar
Keyword(s):  
Internet Of Things ◽  
Smart Cities ◽  
Fog Computing ◽  
Smart Devices ◽  
The Internet ◽  
Private Companies ◽  
Internet Availability ◽  
Near Future ◽  
The Internet Of Things

The internet of things (IoT) is transpiring technology. In the last decade, demand of IoT has been increased due to various things like the use of smart devices; increased demand for voice-based services; the concept of smart cities has been evolved; more requirements of processed data in fields of artificial intelligence and machine learning; fog computing, deep learning, etc. IoT is expected to reach the milestone of 30 billion IoT units at the end of the year 2020. Internet of things is the network of statutory things like houses, private companies, automobiles, and various objects integrated with sensors, actuators, software, electronic equipment, and internet availability that provides the facility to devices to interchange their data. The main contribution of this article is to provide state of art about the characteristics, functionalities, and challenges of the internet of things and the journey of IoT right from start to how it will make an impact on people's quality of life throughout the world in the near future.

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