A Survey of Wireless Communication  Technologies &amp; Their Performance  for High Speed Railways

There is no doubt that wireless communication technologies have been one of the most interesting innovation fields in the telecommunications industry in recent years. The spectacular rate of innovation in this field has enforced the vision of ubiquitous connectivity: the vision of a world where every human being and every electronic device, from high-end supercomputers to tiny sensors of temperature in your car, can talk to each other through a dense web of communication links. A vision of this kind, although more “human-centric,” is proposed, for example, in the “Book of Visions” (2001) published by the Wireless World Research Forum. Of course, wireless communication technologies are instrumental in accomplishing this vision, as we cannot possibly imagine to connect everything by means of cables. Moreover, wireless communications offer the advantage of supporting mobility even at high speed.

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Innovation in Wireless Technologies

Encyclopedia of Developing Regional Communities with Information and Communication Technology ◽

10.4018/978-1-59140-575-7.ch080 ◽

2005 ◽

pp. 458-462

Author(s):

Diego Ragazzi

Keyword(s):

Wireless Communications ◽

Wireless Communication ◽

High Speed ◽

Electronic Device ◽

Communication Technologies ◽

Telecommunications Industry ◽

Human Being ◽

Wireless Technologies ◽

Communication Links

There is no doubt that wireless communication technologies have been one of the most interesting innovation fields in the telecommunications industry in recent years. The spectacular rate of innovation in this field has enforced the vision of ubiquitous connectivity: the vision of a world where every human being and every electronic device, from high-end supercomputers to tiny sensors of temperature in your car, can talk to each other through a dense web of communication links. A vision of this kind, although more “human-centric,” is proposed, for example, in the “Book of Visions” (2001) published by the Wireless World Research Forum. Of course, wireless communication technologies are instrumental in accomplishing this vision, as we cannot possibly imagine to connect everything by means of cables. Moreover, wireless communications offer the advantage of supporting mobility even at high speed.

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Analysis of Inter-Satellite Optical Wireless Communication System

International Journal of Advanced Research in Computer Science and Software Engineering ◽

10.23956/ijarcsse.v7i10.267 ◽

2017 ◽

Vol 7 (10) ◽

pp. 10

Author(s):

Rajbir Singh

Keyword(s):

Wireless Communication ◽

Optical Networks ◽

Data Transmission ◽

High Speed ◽

Open Space ◽

Communication Link ◽

Optical Wireless Communication ◽

Optical Wireless ◽

High Speed Data ◽

Speed Data Transmission

Optical networks are bandwidth efficient networks are used for long haul communication providing seamless data transfer. For high speed data transmission in open space between different satellites, Inter-satellite Optical wireless communication (IsOWC) is widely used .In this paper we have evaluated the performance of IsOWC communication link for high speed data transmission .The performance of the system is evaluated on the basis of qualitative parameters such as Q-factor and BER using optisystem simulator.

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Convergence in norming and control of modern wireless technologies electromagnetic fields

Russian Journal of Occupational Health and Industrial Ecology ◽

10.31089/1026-9428-2020-60-9-610-613 ◽

2020 ◽

Vol 60 (9) ◽

pp. 610-613

Author(s):

Michail Yu. Maslov ◽

Yuri M. Spodobaev

Keyword(s):

Wireless Communication ◽

Electromagnetic Fields ◽

Communication Systems ◽

Communication Technologies ◽

Telecommunications Industry ◽

High Tech ◽

Wireless Technologies ◽

Almost All ◽

Network Technologies ◽

And Control

Telecommunications industry evolution shows the highest rates of transition to high-tech systems and is accompanied by a trend of deep mutual penetration of technologies - convergence. The dominant telecommunication technologies have become wireless communication systems. The widespread use of modern wireless technologies has led to the saturation of the environment with technological electromagnetic fields and the actualization of the problems of protecting the population from them. This fundamental restructuring has led to a uniform dense placement of radiating fragments of network technologies in the mudflow areas. The changed parameters of the emitted fields became the reason for the revision of the regulatory and methodological support of electromagnetic safety. A fragmented structural, functional and parametric analysis of the problem of protecting the population from the technological fields of network technologies revealed uncertainty in the interpretation of real situations, vulnerability, weakness and groundlessness of the methodological basis of sanitary-hygienic approaches. It is shown that this applies to all stages of the electromagnetic examination of the emitting fragments of network technologies. Distrust arises on the part of specialists and the population in not only the system of sanitary-hygienic control, but also the safety of modern network technologies is being called into question. Growing social tensions and radio phobia are everywhere accompanying the development of wireless communication technologies. The basis for solving almost all problems of protecting the population can be the transfer of subjective methods and means of monitoring and sanitary-hygienic control of electromagnetic fields into the field of IT.

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Design and Implementation of an Efficient Parallel LFSR Architecture for Wireless Communication Systems

Current Signal Transduction Therapy ◽

10.2174/1574362414666191016155707 ◽

2019 ◽

Vol 14 ◽

Author(s):

A. Suresh Babu ◽

B. Anand

Keyword(s):

Wireless Communication ◽

Power Consumption ◽

Low Power ◽

Communication Systems ◽

High Speed ◽

Design Tool ◽

Shift Register ◽

Linear Feedback ◽

Wireless Communication Systems ◽

Coverage Area

: A Linear Feedback Shift Register (LFSR) considers a linear function typically an XOR operation of the previous state as an input to the current state. This paper describes in detail the recent Wireless Communication Systems (WCS) and techniques related to LFSR. Cryptographic methods and reconfigurable computing are two different applications used in the proposed shift register with improved speed and decreased power consumption. Comparing with the existing individual applications, the proposed shift register obtained >15 to <=45% of decreased power consumption with 30% of reduced coverage area. Hence this proposed low power high speed LFSR design suits for various low power high speed applications, for example wireless communication. The entire design architecture is simulated and verified in VHDL language. To synthesis a standard cell library of 0.7um CMOS is used. A custom design tool has been developed for measuring the power. From the results, it is obtained that the cryptographic efficiency is improved regarding time and complexity comparing with the existing algorithms. Hence, the proposed LFSR architecture can be used for any wireless applications due to parallel processing, multiple access and cryptographic methods.

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A Novel Image Encryption Algorithm Using Multiple Encryption Techniques for Mobile Devices

International Journal of Sensors Wireless Communications and Control ◽

10.2174/2210327909666190408094102 ◽

2020 ◽

Vol 10 (2) ◽

pp. 123-142

Author(s):

Showkat Ahmad Bhat ◽

Amandeep Singh

Keyword(s):

Wireless Communication ◽

Communication Networks ◽

Image Encryption ◽

High Speed ◽

Security Analysis ◽

Encryption Algorithm ◽

Multiple Encryption ◽

Communication Devices ◽

Cryptographic Attacks ◽

Image Encryption Algorithm

Background & Objective: Digital multimedia exchange between different mobile communication devices has increased rapidly with the invention of the high-speed data services like LTE-A, LTE, and WiMAX. However, there are always certain security risks associated with the use of wireless communication technologies. Methods: To protect the digital images against cryptographic attacks different image encryption algorithms are being employed in the wireless communication networks. These algorithms use comparatively less key spaces and accordingly offer inadequate security. The proposed algorithm described in this paper based on Rubik’s cube principle because of its high confusion and diffusion properties, Arnold function having effective scrambling power, blocking cipher with block encryption and permutation powers. The main strength of the proposed algorithm lies in the large key spaces and the combination of different high power encryption techniques at each stage of algorithm. The different operations employed on the image are with four security keys of different key spaces at multiple stages of the algorithm. Results & Conclusion: Finally, the effectiveness and the security analysis results shows that the proposed image encryption algorithm attains high encryption and security capabilities along with high resistance against cryptanalytic attacks, differential attacks and statistical attacks.

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