Enhanced performance of a patch antenna using spiral-shaped electromagnetic bandgap structures for high-speed wireless networks

2011 ◽  
Vol 5 (14) ◽  
pp. 1750 ◽  
Author(s):  
A. Ameelia Roseline ◽  
K. Malathi ◽  
A.K. Shrivastav
Keyword(s):  
Wireless Networks ◽  
Patch Antenna ◽  
High Speed ◽  
Electromagnetic Bandgap

Effect of Slice Priority for admission control in 5G Wireless Networks: A comparison study for two Fuzzy-based systems considering Software-Defined-Networks

2020 ◽  
Vol 26 (3) ◽  
pp. 169-183
Author(s):  
Phudit Ampririt ◽  
Yi Liu ◽  
Makoto Ikeda ◽  
Keita Matsuo ◽  
Leonard Barolli ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Admission Control ◽  
High Speed ◽  
Additional Parameter ◽  
Fifth Generation ◽  
Efficient Management ◽  
Grade Of Service ◽  
User Request ◽  
Control Decision ◽  
And Control

The Fifth Generation (5G) networks are expected to be flexible to satisfy demands of high-quality services such as high speed, low latencies and enhanced reliability from customers. Also, the rapidly increasing amount of user devices and high user’s requests becomes a problem. Thus, the Software-Defined Network (SDN) will be the key function for efficient management and control. To deal with these problems, we propose a Fuzzy-based SDN approach. This paper presents and compares two Fuzzy-based Systems for Admission Control (FBSAC) in 5G wireless networks: FBSAC1 and FBSAC2. The FBSAC1 considers for admission control decision three parameters: Grade of Service (GS), User Request Delay Time (URDT) and Network Slice Size (NSS). In FBSAC2, we consider as an additional parameter the Slice Priority (SP). So, FBSAC2 has four input parameters. The simulation results show that the FBSAC2 is more complex than FBSAC1, but it has a better performance for admission control.

scholarly journals Adaptive mobile visualization - the chameleon framework

2015 ◽  
Vol 12 (2) ◽  
pp. 445-464 ◽  
Author(s):  
Paulo Pombinho ◽  
Maria Carmo ◽  
Ana Afonso
Keyword(s):  
Wireless Networks ◽  
Mobile Devices ◽  
Information Visualization ◽  
High Speed ◽  
Ad Hoc ◽  
Resource Constraints ◽  
Specific Domain ◽  
User Context ◽  
Screen Space

The evolution of mobile devices and the development of high speed wireless networks have supported a widespread use of these devices with increasingly more complex applications. This reality has fostered the research in the field of information visualization in mobile devices. However, the limited screen space, resource constraints and interaction restrictions impose difficulties to developers and users of these applications. An approach to address these problems is to adapt the visualization to the user context. However, these proposals are normally designed in an ad-hoc fashion and are difficult to generalize. In addition, existing solutions are focused only in some subset of possible characteristics of the user context or only address a very specific domain and related adaptations. The objective of this paper is to present the design of a framework for adaptive mobile visualization (AMV) applications, denominated Chameleon, and the development and evaluation of prototypes that use this conceptual-based framework.

scholarly journals 28 GHz Microstrip Patch Antennas for Future 5G

2018 ◽  
Vol 2 (4) ◽  
pp. 1-6
Author(s):  
Keyword(s):  
Wireless Networks ◽  
Antenna Array ◽  
Patch Antenna ◽  
Structure Design ◽  
Slot Antenna ◽  
Potential Candidate ◽  
Significant Activity ◽  
Microstrip Patch ◽  
Rectangular Patch ◽  
Compact Size

Recently, the industry and academia there is significant activity in research and development towards the next generation micro and Pico cellular wireless Networks (5th generation). This paper presents, a structure design of microstrip patch antenna array operate at the central frequency of 28 GHz waveband is proposed. The patch antenna array consists of four elements with rectangular patch and uniform distribution. It has a compact size of 26.51 x 20.37 mm with operating frequency at 28 GHz. The inset feed technique is used for the matching between radiating patch and the 50Ω microstrip feedline. The proposed 2x2 antenna array successfully improve the antenna gain up to 8.393dB compare to existing CRLH TL CPW antenna with 2.99 dB, wideband antenna with 7.1 dB and 3.7 dB for broadband elliptical-shaped slot antenna. As a conclusion, the directivity of 10.13 db and efficiency is higher than 80% considered as a potential candidate for the 5G wireless networks and applications.

Dynamic bandwidth allocation algorithms for high-speed data wireless networks

2002 ◽  
Vol 3 (3) ◽  
pp. 30-49 ◽  
Author(s):  
Matthew Andrews ◽  
Simon C. Borst ◽  
Francis Dominique ◽  
Predrag R. Jelenkovic ◽  
Krishnan Kumaran ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Bandwidth Allocation ◽  
High Speed ◽  
Dynamic Bandwidth Allocation ◽  
High Speed Data ◽  
Dynamic Bandwidth ◽  
Allocation Algorithms

Enabling continuous connectivity services for ambrosus blockchain application by incorporating 5G-multilevel machine learning orchestrations

2022 ◽  
pp. 1-16
Author(s):  
Nagaraj Varatharaj ◽  
Sumithira Thulasimani Ramalingam
Keyword(s):  
Machine Learning ◽  
Wireless Networks ◽  
High Speed ◽  
Dynamic Condition ◽  
Main Idea ◽  
Base Station ◽  
Performance Comparison ◽  
Wide Range ◽  
Unit Layer ◽  
Block Chain

Most revolutionary applications extending far beyond smartphones and high configured mobile device use to the future generation wireless networks’ are high potential capabilities in recent days. One of the advanced wireless networks and mobile technology is 5G, where it provides high speed, better reliability, and amended capacity. 5 G offers complete coverage, which is accommodates any IoT device, connectivity, and intelligent edge algorithms. So that 5 G has a high demand in a wide range of commercial applications. Ambrosus is a commercial company that integrates block-chain security, IoT network, and supply chain management for medical and food enterprises. This paper proposed a novel framework that integrates 5 G technology, Machine Learning (ML) algorithms, and block-chain security. The main idea of this work is to incorporate the 5 G technology into Machine learning architectures for the Ambrosus application. 5 G technology provides continuous connection among the network user/nodes, where choosing the right user, base station, and the controller is obtained by using for ML architecture. The proposed framework comprises 5 G technology incorporate, a novel network orchestration, Radio Access Network, and a centralized distributor, and a radio unit layer. The radio unit layer is used for integrating all the components of the framework. The ML algorithm is evaluated the dynamic condition of the base station, like as IoT nodes, Ambrosus users, channels, and the route to enhance the efficiency of the communication. The performance of the proposed framework is evaluated in terms of prediction by simulating the model in MATLAB software. From the performance comparison, it is noticed that the proposed unified architecture obtained 98.6% of accuracy which is higher than the accuracy of the existing decision tree algorithm 97.1% .

Evaluation of Arab Municipal Websites

2011 ◽  
pp. 51-65
Author(s):  
Hana Abdullah Al-Nuaim
Keyword(s):  
Wireless Networks ◽  
Growth And Development ◽  
High Speed ◽  
Public Services ◽  
Government Agencies ◽  
Immediate Feedback ◽  
Web Based ◽  
Basic Services ◽  
The Way

High speed wireless networks and mobile and web-based services are changing the way we, as consumers of information, communicate, learn, do business and receive services. Successful e-commerce models have raised the expectations of citizens to have government agencies and organizations provide public services that are timely and efficient. With the growth and development of Arab cities, especially in the capitals, life becomes a little bit harder for citizens dealing with highly bureaucratic government agencies as their demands for basic services increase. Although e-readiness in the region has grown considerably with impressive progress, Arab cities have been clearly absent from studies on worldwide e-municipal websites. In this study, an evaluation checklist for was used to evaluate official municipal websites of Arab capitals. The study found that these websites were not citizen centered, suffered from fundamental problems, had some features that were inoperable and did not follow basic guidelines for any municipal website. These sites were dominated by aesthetics and technical novelties alone, providing inactive information rather than the inclusion of interactive e-services with immediate feedback and easy to use, navigable interfaces.

Sign in / Sign up

Export Citation Format

Share Document