scholarly journals RECONFIGURABLE INTELLIGENT SURFACES FOR WIRELESS COMMUNICATIONS: BEYOND 5G

2021 ◽  
Vol 6 (4) ◽  
Author(s):  
Chandrala M S ◽  
Dr. Kiran V
Keyword(s):  
Wireless Communications ◽  
Critical Analysis ◽  
Physical Layer ◽  
Reliable Transmission ◽  
Wireless Environment ◽  
Intended Receiver ◽  
Reflecting Surfaces

The advancement in the technology has led to the tremendous variance in the 5G domain. Development in some of the physical layer technologies would help think beyond 5G. One such technology is Intelligent Reflecting Surfaces (IRS). IRS caters to focusing the reception of the signal, only to the intended receiver, without loss of power. This otherwise termed as beamforming. In this a new and vast dimension, the wireless environment, in which signal propagates, to be tuned, for reliable transmission. The paper deals about what are Intelligent Reflecting Surfaces, features, false ideas, and critical analysis of how IRS can be a part of future beyond 5G.

scholarly journals Secure Wireless Communications Based On Antenna Array Elements

2020 ◽  
Vol 2 (2) ◽  
pp. 18-24
Author(s):  
Shaddrack Yaw Nusenu
Keyword(s):  
Wireless Communications ◽  
Antenna Array ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Modulation Scheme ◽  
Security Level ◽  
Transmission Period ◽  
Frequency Diverse Array ◽  
Point To Point ◽  
Intended Receiver

Configuration of antenna array system to offer directional dependent modulation has the capability of enhancing the security level of data transmission against eavesdroppers’ attacks. In this paper, Frequency diverse array (FDA) antenna for physical–layer security in wireless communications has been proposed. The proposed method provide a range and angle dependent directional modulation scheme using FDA with frequency increments to improve physical-layer security point-to-point communications. It maintains the objective of changing the progressive phase shifts at each symbol transmission. Thus the emitted pattern at each symbol transmission period will be range and angle dependent. Consequently, the proposed method offers a robust physical-layer security for wireless transmission, as the transmitted signal will be deliberately distorted along the undesired positions, but can be successfully decoded by the intended receiver position. Numerical results are presented to validate the effectiveness of the proposed method. Keywords: Frequency diverse array; Physical-layer security; Directional antenna modulation; Wireless communication; Range and angle dependent.

scholarly journals Joint Beam and Polarization Forming of Intelligent Reflecting Surfaces for Wireless Communications

2021 ◽  
pp. 1-1
Author(s):  
Shinya Sugiura ◽  
Yuto Kawai ◽  
Takayuki Matsui ◽  
Taehwa Lee ◽  
Hideo Iizuka
Keyword(s):  
Wireless Communications ◽  
Reflecting Surfaces

scholarly journals Deep Learning for Signal Demodulation in Physical Layer Wireless Communications: Prototype Platform, Open Dataset, and Analytics

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 30792-30801 ◽  
Author(s):  
Hongmei Wang ◽  
Zhenzhen Wu ◽  
Shuai Ma ◽  
Songtao Lu ◽  
Han Zhang ◽  
...  
Keyword(s):  
Deep Learning ◽  
Wireless Communications ◽  
Physical Layer ◽  
Signal Demodulation

scholarly journals Toward Smart Wireless Communications via Intelligent Reflecting Surfaces: A Contemporary Survey

2020 ◽  
Vol 22 (4) ◽  
pp. 2283-2314 ◽  
Author(s):  
Shimin Gong ◽  
Xiao Lu ◽  
Dinh Thai Hoang ◽  
Dusit Niyato ◽  
Lei Shu ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Reflecting Surfaces

scholarly journals On the Implementation of a Dynamic Direction Modulation System with Vector Modulators

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Edith Annette Cabrera-Hernández ◽  
Josep Parron ◽  
Alan Tennant
Keyword(s):  
Wireless Communications ◽  
Physical Layer Security ◽  
Physical Layer ◽  
Efficient Technique ◽  
Synthesis Methods ◽  
System Architectures ◽  
Flexible Framework ◽  
Communications System ◽  
Nonideal Behavior ◽  
Directional Modulation

Dynamic directional modulation (DDM) has already proven to be an efficient technique to achieve physical layer security in wireless communications. System architectures based on vector modulators provide a flexible framework to implement synthesis methods that allow us to obtain increased security and/or independent multichannel transmissions. However, the implementation of DDM with vector modulators requires an accurate calibration (amplitude and phase) of every component in the RF path. In this contribution, we study the sensitivity of the response of a DDM system based on commercial vector modulators showing how to correct the nonideal behavior of all the components thanks to the flexibility provided by the vector modulator.

scholarly journals Cryptographic Primitives and Design Frameworks of Physical Layer Encryption for Wireless Communications

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 63660-63673 ◽  
Author(s):  
Wei Li ◽  
Des Mclernon ◽  
Jing Lei ◽  
Mounir Ghogho ◽  
Syed Ali Raza Zaidi ◽  
...  
Keyword(s):  
Wireless Communications ◽  
Physical Layer ◽  
Cryptographic Primitives ◽  
Physical Layer Encryption
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