High Capacity Wireless Networks through Collaboration and Intelligent Information Storage

2018 ◽  
Author(s):  
Leandros Tassiulas
Keyword(s):  
Wireless Networks ◽  
High Capacity ◽  
Information Storage ◽  
Intelligent Information

scholarly journals Application of cell-free massive MIMO in 5G and beyond 5G wireless networks: a survey

2021 ◽  
Vol 68 (1) ◽  
Author(s):  
Hope Ikoghene Obakhena ◽  
Agbotiname Lucky Imoize ◽  
Francis Ifeanyi Anyasi ◽  
K. V. N. Kavitha
Keyword(s):  
Wireless Networks ◽  
Massive Mimo ◽  
System Modeling ◽  
High Capacity ◽  
High Energy ◽  
Lessons Learned ◽  
Base Stations ◽  
Innovative Technology ◽  
Processing Unit ◽  
Central Processing

AbstractIn recent times, the rapid growth in mobile subscriptions and the associated demand for high data rates fuels the need for a robust wireless network design to meet the required capacity and coverage. Deploying massive numbers of cellular base stations (BSs) over a geographic area to fulfill high-capacity demands and broad network coverage is quite challenging due to inter-cell interference and significant rate variations. Cell-free massive MIMO (CF-mMIMO), a key enabler for 5G and 6G wireless networks, has been identified as an innovative technology to address this problem. In CF-mMIMO, many irregularly scattered single access points (APs) are linked to a central processing unit (CPU) via a backhaul network that coherently serves a limited number of mobile stations (MSs) to achieve high energy efficiency (EE) and spectral gains. This paper presents key areas of applications of CF-mMIMO in the ubiquitous 5G, and the envisioned 6G wireless networks. First, a foundational background on massive MIMO solutions-cellular massive MIMO, network MIMO, and CF-mMIMO is presented, focusing on the application areas and associated challenges. Additionally, CF-mMIMO architectures, design considerations, and system modeling are discussed extensively. Furthermore, the key areas of application of CF-mMIMO such as simultaneous wireless information and power transfer (SWIPT), channel hardening, hardware efficiency, power control, non-orthogonal multiple access (NOMA), spectral efficiency (SE), and EE are discussed exhaustively. Finally, the research directions, open issues, and lessons learned to stimulate cutting-edge research in this emerging domain of wireless communications are highlighted.

scholarly journals Simultaneously Achieving High Capacity Storage and Multilevel Anti-Counterfeiting Using Electrochromic and Electrofluorochromic Dual-Functional AIE Polymers

2021 ◽  
Author(s):  
Lin Lu ◽  
Kaojin Wang ◽  
Haozhong Wu ◽  
Anjun Qin ◽  
Ben Zhong Tang
Keyword(s):  
Color Change ◽  
Dimensional Space ◽  
High Capacity ◽  
Information Storage ◽  
Great Promise ◽  
Security Technology ◽  
Color Code ◽  
Display Devices ◽  
Dual Functional ◽  
Multidimensional Information

With the advent of the big data era, information storage and security are becoming increasingly important. However, high capacity information storage and multilevel anti-counterfeiting are typically difficult to simultaneously achieve. To address this challenge, herein, two electrochromic and electrofluorochromic dual-functional polymers with aggregation-induced emission (AIE) features are skillfully designed. Upon application of voltage, the absorption and fluorescence spectra of the two polymers can undergo reversible changes, accompanying with the variation of appearance color and emission. By utilizing the controllable characteristics of polymers, the dual-mode display devices are fabricated via a simple spraying method. More interestingly, the color code device was elaborately constructed by adding color change multiplexing to two-dimensional space, thereby achieving high capacity information storage. Moreover, the color code device can also be applied in the multilevel anti-counterfeiting areas. The encrypted information can be dynamically converted under different voltages. The AIE polymers show great promise in the applications of multidimensional information storage and dynamic anti-counterfeiting and the design strategy may provide a new path for advanced information storage and high security technology.<br><div><br></div>

Sub-THz components for high capacity point to multipoint wireless networks

2019 ◽  
Author(s):  
Claudio Paoloni ◽  
Trung Le ◽  
Ralph Zimmerman ◽  
Sebastian Boppel ◽  
Viktor Krozer ◽  
...  
Keyword(s):  
Wireless Networks ◽  
High Capacity

High capacity relay protocols for wireless networks

2009 ◽  
Vol 11 (2) ◽  
pp. 196-206 ◽  
Author(s):  
Yijia Fan ◽  
Ioannis Krikidis ◽  
Chao Wang ◽  
John S. Thompson ◽  
H. Vincent Poor
Keyword(s):  
Wireless Networks ◽  
High Capacity

scholarly journals Simultaneously achieving high capacity storage and multilevel anti-counterfeiting using electrochromic and electrofluorochromic dual-functional AIE polymers

2021 ◽  
Author(s):  
Lin Lu ◽  
Kaojin Wang ◽  
Haozhong Wu ◽  
Anjun Qin ◽  
Ben Zhong Tang
Keyword(s):  
Big Data ◽  
High Capacity ◽  
Information Storage ◽  
Dual Functional

With the advent of the big data era, information storage and security are becoming increasingly important. However, high capacity information storage and multilevel anti-counterfeiting are typically difficult to simultaneously achieve....

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