PHY-Layer Design Challenges in Reconfigurable Intelligent Surface Aided 6G Wireless Networks

2021 ◽  
pp. 53-81
Author(s):  
Hang Liu ◽  
Xiaojun Yuan ◽  
Ying-Jun Angela Zhang
Keyword(s):  
Wireless Networks ◽  
Phy Layer ◽  
Design Challenges

Game Theory for PHY Layer and MAC Sublayer in Wireless Telecommunications

2010 ◽  
pp. 804-819
Author(s):  
J. Joaquín Escudero-Garzás ◽  
Ana García-Armada
Keyword(s):  
Game Theory ◽  
Wireless Networks ◽  
Applied Mathematics ◽  
Complex Problems ◽  
Game Player ◽  
Wireless Telecommunications ◽  
Wireless Environments ◽  
Phy Layer ◽  
Novel Concept

The aim of this chapter is to address the role of a novel concept in wireless telecommunications: Game theory. Game theory is a branch of applied mathematics, which has recently drawn attention as a powerful tool to solve complex problems in wireless environments. To fulfil the intended goal, this chapter introduces the most relevant concepts of game theory such as game, player, and strategy, and give an overview of the applications of game theory in wireless networks.

scholarly journals A Review on 5G Sub-6 GHz Base Station Antenna Design Challenges

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 2000
Author(s):  
Madiha Farasat ◽  
Dushmantha N. Thalakotuna ◽  
Zhonghao Hu ◽  
Yang Yang
Keyword(s):  
Wireless Networks ◽  
Return Loss ◽  
Base Station ◽  
Antenna Design ◽  
Compact Antenna ◽  
Base Station Antennas ◽  
Close Proximity ◽  
Design Challenges ◽  
Design Techniques

Modern wireless networks such as 5G require multiband MIMO-supported Base Station Antennas. As a result, antennas have multiple ports to support a range of frequency bands leading to multiple arrays within one compact antenna enclosure. The close proximity of the arrays results in significant scattering degrading pattern performance of each band while coupling between arrays leads to degradation in return loss and port-to-port isolations. Different design techniques are adopted in the literature to overcome such challenges. This paper provides a classification of challenges in BSA design and a cohesive list of design techniques adopted in the literature to overcome such challenges.

scholarly journals Partial Packets in Wireless Networks: A Review

2019 ◽  
Author(s):  
Kurniawan D. Irianto ◽  
Giang T. Nguyen ◽  
Hani Salah ◽  
Frank H.P. Fitzek
Keyword(s):  
Wireless Networks ◽  
Network Coding ◽  
Data Transmission ◽  
Soft Information ◽  
Wireless Data ◽  
Packet Recovery ◽  
Review Study ◽  
Phy Layer

Data transmission in wireless networks is vulnerable to errors, due to the nature of wireless characteristics. As a result, corrupted packets are a common case in wireless data transmissions. Many techniques have been proposed to tackle these issues and one of the recommended techniques is the partial packet recovery (PPR) scheme. There are various existing PPR methods that have been proposed, in the last two decades, in wireless networks. In addition, recent works have shown the possibility of network coding along with its capabilities in recovering the partial packets. This paper presents a review study of PPR approaches in wireless networks. We classify the approaches into several groups based on the soft information in the PHY layer. Furthermore, we describe the PPR techniques that have used in each of these groups. Our studies found that there are twenty-four protocols have been proposed using PPR to improve the performance in wireless networks.

scholarly journals Rate splitting for MIMO wireless networks: a promising PHY-layer strategy for LTE evolution

2016 ◽  
Vol 54 (5) ◽  
pp. 98-105 ◽  
Author(s):  
Bruno Clerckx ◽  
Hamdi Joudeh ◽  
Chenxi Hao ◽  
Mingbo Dai ◽  
Borzoo Rassouli
Keyword(s):  
Wireless Networks ◽  
Rate Splitting ◽  
Phy Layer

scholarly journals Information Security of PHY Layer in Wireless Networks

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Weidong Fang ◽  
Fengrong Li ◽  
Yanzan Sun ◽  
Lianhai Shan ◽  
Shanji Chen ◽  
...  
Keyword(s):  
Wireless Networks ◽  
Time Domain ◽  
Physical Layer Security ◽  
Focus Of Attention ◽  
Wireless Channel ◽  
Research Issues ◽  
Security Issues ◽  
Open Research ◽  
Pros And Cons ◽  
Phy Layer

Since the characteristics of wireless channel are open and broadcasting, wireless networks are very vulnerable to be attacked via eavesdropping, jamming, and interference. As traditional secure technologies are not suitable for PHY layer of wireless networks, physical-layer security issues become a focus of attention. In this paper, we firstly identify and summarize the threats and vulnerabilities in PHY layer of wireless networks. Then, we give a holistic overview of PHY layer secure schemes, which are divided into three categories: spatial domain-based, time domain-based, and frequency domain-based. Along the way, we analyze the pros and cons of current secure technologies in each category. In addition, we also conclude the techniques and methods used in these categories and point out the open research issues and directions in this area.

Design challenges and scope for cognitive radio wireless networks in Bangladesh

2011 ◽  
Author(s):  
Tasnia Jahed ◽  
Ipshita Das ◽  
Niaz Iqbal ◽  
Sanjida Hossain Sabah ◽  
Hasan Shahid Ferdous
Keyword(s):  
Wireless Networks ◽  
Cognitive Radio ◽  
Design Challenges
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