Results 11 to 20 of about 2,418,601 (257)

A Survey of Physical Layer Security Techniques for 5G Wireless Networks and Challenges Ahead [PDF]

open access: yes, 2018
Physical layer security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently.
Caire, Giuseppe   +5 more
core   +2 more sources

Combined Optical Fiber Transmission System Based on QNSC and BER-LM

open access: yesPhotonics, 2023
A quantum noise stream cipher (QNSC) is a physical layer encryption technology based on quantum noise. Bit error rate loopback measurement (BER-LM) is a method to measure the BER of a loopback channel and extract channel characteristics.
Xiaokun Yang   +6 more
doaj   +1 more source

Precoder Design for Physical Layer Multicasting [PDF]

open access: yes, 2012
This paper studies the instantaneous rate maximization and the weighted sum delay minimization problems over a K-user multicast channel, where multiple antennas are available at the transmitter as well as at all the receivers.
Prasad, Narayan   +2 more
core   +1 more source

Molecular-Based Nano-Communication Network: A Ring Topology Nano-Bots for In-Vivo Drug Delivery Systems

open access: yesIEEE Access, 2019
Compared to traditional machines in computer networks, nano-bots in nano-networks face challenges due to the limitations of processing capabilities and power management. Under these limitations, these nano-bots can only perform simple tasks.
Daniel Tunc Mcguiness   +2 more
doaj   +1 more source

Physical-layer MIMO relaying [PDF]

open access: yes2011 IEEE International Symposium on Information Theory Proceedings, 2011
5 pages, 3 figures, submitted to ISIT ...
Khina, A., Kochman, Y., Erez, U.
openaire   +2 more sources

Wireless physical layer security [PDF]

open access: yesProceedings of the National Academy of Sciences, 2016
Significance Security is a very important issue in the design and use of wireless networks. Traditional methods of providing security in such networks are impractical for some emerging types of wireless networks due to the light computational abilities of some wireless devices [such as radio-frequency identification (RFID) tags, certain ...
H. Vincent Poor, Rafael F. Schaefer
openaire   +2 more sources

Beam Management in Millimeter-Wave Communications for 5G and Beyond

open access: yesIEEE Access, 2020
Massive MIMO is one of the promising techniques to improve spectral efficiency and network performance for reaching its targeted multi-gigabit throughput in 5G systems.
Yu-Ngok Ruyue Li   +3 more
doaj   +1 more source

A Walk-through towards Network Steganography Techniques

open access: yesИнформатика и автоматизация, 2023
2D and 3D digital multimedia files offer numerous benefits like excellent quality, compression, editing, reliable copying, etc. These qualities of the multimedia files, on the other hand, are the cause of fear including the fear of getting access to data
Urmila Pilania   +3 more
doaj   +1 more source

Distributed MAC Protocol Supporting Physical-Layer Network Coding [PDF]

open access: yes, 2012
Physical-layer network coding (PNC) is a promising approach for wireless networks. It allows nodes to transmit simultaneously. Due to the difficulties of scheduling simultaneous transmissions, existing works on PNC are based on simplified medium access ...
Jamalipour, Abbas   +3 more
core   +1 more source

A Glimpse of Physical Layer Decision Mechanisms: Facts, Challenges, and Remedies

open access: yesIEEE Open Journal of the Communications Society, 2022
Communications are realized as a result of successive decisions at the physical layer, from modulation selection to multi-antenna strategy, and each decision affects the performance of the communication systems.
Selen Gecgel Cetin   +3 more
doaj   +1 more source

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