Exploring the Growth of Wireless Communications Systems and Challenges Facing 4G Networks

2018 ◽  
pp. 6094-6105 ◽  
Author(s):  
Amber A. Smith-Ditizio ◽  
Alan D. Smith
Keyword(s):  
Wireless Communications ◽  
Mobile Communications ◽  
Communication Systems ◽  
Global Economy ◽  
Telecommunications Industry ◽  
Wireless Communication Systems ◽  
4G Networks ◽  
History Of ◽  
4G Wireless ◽  
Wireless Communications Systems

Mobile communication and its many applications have been fueling the rapid growth and adoption of wireless communications for years. With this growth has been marked by significant network development and advanced techniques evolving in all the fields of mobile and wireless communications. The transition from 3G communications to 4G communications has extremely boosted the way and speed at which companies and their customer are able to operate in the global economy. The purpose of this chapter is to describe some of the significant impacts of 4G wireless communication systems on the telecommunications industry. Topics describing 4G to include a brief history of mobile communications, what are the major characteristics of 4G networks and its users, advantages of 4G?, challenges that 4G faces, wireless in the field/IT component, future directions of 4G, and some of the potential plans for growth.

Exploring the Growth of Wireless Communications Systems and Challenges Facing 4G Networks

2019 ◽  
pp. 889-902
Author(s):  
Amber A. Smith-Ditizio ◽  
Alan D. Smith
Keyword(s):  
Wireless Communications ◽  
Mobile Communications ◽  
Communication Systems ◽  
Global Economy ◽  
Telecommunications Industry ◽  
Wireless Communication Systems ◽  
4G Networks ◽  
History Of ◽  
4G Wireless ◽  
Wireless Communications Systems

Mobile communication and its many applications have been fueling the rapid growth and adoption of wireless communications for years. This growth has been marked by significant network development and advanced techniques evolving in all the fields of mobile and wireless communications. The transition from 3G communications to 4G communications has extremely boosted the way and speed at which companies and their customer are able to operate in the global economy. The purpose of this chapter is to describe some of the significant impacts of 4G wireless communication systems on the telecommunications industry. Topics describing 4G to include a brief history of mobile communications, what are the major characteristics of 4G networks and its users, advantages of 4G, challenges that 4G faces, wireless in the field/IT component, future directions of 4G, and some of the potential plans for growth.

scholarly journals Omnidirectional Microstrip Patch Antenna for 2.4 GHz Wireless Communications

2021 ◽  
Vol 2114 (1) ◽  
pp. 012051
Author(s):  
Alaa M. Abdulhussein ◽  
Ali H. Khidhi ◽  
Ahmed A. Naser
Keyword(s):  
Computer Simulation ◽  
Wireless Communications ◽  
Wireless Communication ◽  
Patch Antenna ◽  
Communication Systems ◽  
Return Loss ◽  
Microstrip Patch Antenna ◽  
Wireless Communication Systems ◽  
Microstrip Patch ◽  
Operating Bandwidth

Abstract Antenna studies on various wireless communication systems have been carried out by many academics. In this research, the omnidirectional microstrip patch antenna (MPA) is proposed, manufactured, and tested. The operating bandwidth of the antenna is quite suitable for the different applications. The proposed antenna fabricated on the flame retardant (FR-4) substrate with a volume of 75.85 × 57.23 × 1.59 mm3. Computer simulation technology (CST) studio used to design and simulate. Experimental results show that the return loss (RL), bandwidth (BW), voltage standing wave ratio (VSWR) and input impedance (Zin ) are -25.26 dB, 61 MHz, 1.12 and 54.46 Ω, respectively. The antenna operates at 2.42 GHz (from 2.39 to 2.45 GHz), which has good performance in the Wi-Fi, Bluetooth, and ZigBee communications.

Assessment of Rural Intelligent Transportation System Wireless Communications Solutions

2000 ◽  
Vol 1739 (1) ◽  
pp. 51-58 ◽  
Author(s):  
Qingyan Yang ◽  
Virginia Sisiopiku ◽  
Jim A. Arnold ◽  
Paul Pisano ◽  
Gary G. Nelson
Keyword(s):  
Wireless Communications ◽  
Wireless Communication ◽  
Intelligent Transportation Systems ◽  
Urban Areas ◽  
Communication Systems ◽  
Intelligent Transportation ◽  
Transportation Systems ◽  
Future Research ◽  
Wireless Communication Systems ◽  
Rural Environments

Rural transportation systems have different features and needs than their urban counterparts. To address safety and efficiency concerns in rural environments, advanced rural transportation systems (ARTS) test and deploy appropriate intelligent transportation systems (ITS) technologies, many of which require communication support. However, wireless communication systems that currently serve urban areas often are not available or suitable in rural environments. Thus, a need exists to identify communication solutions that are likely to address successfully the needs and features of ARTS applications. Current and emerging wireless communications systems and technologies have been systematically assessed with respect to rural ITS applications. Wireless communication functions associated with rural ITS functions are first identified. Then requirements for applicable communication technologies in the rural environment are defined. Existing and emerging wireless communication systems and technologies are reviewed and evaluated by a systematic process of assessing rural ITS wireless solutions. Finally, recommendations for future research and operational tests are offered. The analysis results are expected to benefit rural ITS planners by identifying suitable wireless solutions for different rural contexts.

scholarly journals Direct Transmission of Digital Message via Programmable Coding Metasurface

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Tie Jun Cui ◽  
Shuo Liu ◽  
Guo Dong Bai ◽  
Qian Ma
Keyword(s):  
Wireless Communications ◽  
High Frequency ◽  
Communication Systems ◽  
Wireless Communication Systems ◽  
Digital Information ◽  
Direct Transmission ◽  
The Past ◽  
Multiple Receivers ◽  
High Frequency Microwave ◽  
Passive Microwave Devices

In modern wireless communications, digital information is firstly converted to analog signal by a digital-analog convertor, which is then mixed to high-frequency microwave to be transmitted through a series of devices including modulator, mixer, amplifier, filter, and antenna and is finally received by terminals via a reversed process. Although the wireless communication systems have evolved significantly over the past thirty years, the basic architecture has not been challenged. Here, we propose a method to transmit digital information directly via programmable coding metasurface. Since the coding metasurface is composed of ‘0’ and ‘1’ digital units with opposite phase responses, the digital information can be directly modulated to the metasurface with certain coding sequences and sent to space under the illumination of feeding antenna. The information, being modulated in radiation patterns of the metasurface, can be correctly received by multiple receivers distributed in different locations. This method provides a completely new architecture for wireless communications without using complicated digital-analog convertor and a series of active/passive microwave devices. We build up a prototype to validate the new architecture experimentally, which may find promising applications where information security is highly demanded.

scholarly journals A COMPACT MICROSTRIP ANTENNA BASED ON H-FRACTAL GEOMETRY FOR MULTI- BAND OPERATION

2021 ◽  
Vol 25 (Special) ◽  
pp. 1-49-1-55
Author(s):  
Zainab S. Muqdad ◽  
◽  
Taha A. Elwi ◽  
Zaid A. Abdul Hassain ◽  
◽  
...  
Keyword(s):  
Mobile Communications ◽  
Fractal Geometry ◽  
Microstrip Antenna ◽  
Communication Systems ◽  
Ground Plane ◽  
Wireless Communication Systems ◽  
Total Size ◽  
Antenna Structure ◽  
Rectangular Patch ◽  
Resonance Frequencies

This paper presents a compact, tri-bands, rectangular patch antenna based on H-Tree fractal slots structure for modern wireless communication systems has been introduced. The antenna structure consists of a 70.70×56mm2 rectangular patch printed on 173×173×1.6mm3 FR4 substrate. H-Tree slots fractal geometry with the defective ground plane on the other side to enhance gain and bandwidth. The suggested antenna is fed by a 50 Ω microstrip line. The antenna shows three resonance frequencies: 0.784, 1.158, and 1.772 GHz. The suggested antenna offers a total size reduction of about 75 %. The designed antenna possesses fractional bandwidths of 3.976 %, 7 %, and 2.7866 % for the first, second, and third resonances, respectively. Finally, the proposed antenna is a candidate for Global System for Mobile communications (GSM).

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