Results 21 to 30 of about 5,642,826 (267)

Efficient Coding of the Embedded Signal in Steganographic Systems with Multiple Access [PDF]

Problems of the Regional Energetics, 2021
Today, steganographic systems with multiple access are of considerable importance. In such sys-tems, the orthogonal Walsh-Hadamard transform is most often used for multiplexing and divid-ing channels, which leads to the need for efficient coding of the ...
Kobozeva A.A., Kobozeva A.A.,
doaj   +1 more source

New Multiple Access Technologies for Satellite Internet of Things System

天地一体化信息网络, 2023
For satellite internet of things (IoT) scenarios with high propagation delay and the need to serve a larger number of users, firstly the shortcomings of IoT NTN in terms of technical solutions were analyzed, and then a new type of multi access solution ...
Wei BAI, Yujie ZHANG, Shaoli KANG, Deshan MIAO, Shaohui SUN, Shanzhi CHEN   +5 more
doaj  

Time-Hopping Concentration-Position Shift Keying for Multiple Access in Concentration-Encoded Molecular Communication

Applied Sciences
Molecular communication (MC) represents a paradigm shift in communication technologies, extending beyond traditional electromagnetic methods by incorporating advances in nanotechnology, biotechnology, and communication theory.
Su-Jin Kim, Pankaj Singh, Sung-Yoon Jung
doaj   +1 more source

Deep Reinforcement Learning-Based Multi-Access in Massive Machine-Type Communication

IEEE Access
The diverse applications of Machine-Type Communication (MTC) lead to exponential growth in Machine to Machine traffic. In connection with MTC deployment, a large number of devices are expected to access the wireless network simultaneously, resulting in ...
Nasim Ravi, Nuno Lourenco, Marilia Curado, and Edmundo Monteiro   +3 more
doaj   +1 more source

A Survey on Fluid Antenna Multiple Access for 6G: A New Multiple Access Technology That Provides Great Diversity in a Small Space

IEEE Access
In recent times, a fluid antenna system (FAS) has gained attention as a potential contender for 6G wireless networks. Fluid antenna multiple access (FAMA) is a new technology that allows each user to constantly move to the position with the strongest ...
A. F. M. Shahen Shah, Muhammet Ali Karabulut, Eyup Cinar, Khaled M. Rabie   +3 more
doaj   +1 more source

Multi-Users Dynamic Bandwidth Allocation Technology of SDTN

天地一体化信息网络, 2022
The TT＆amp;C and data transmission of spacecraft are divided into two methods: space-based and ground-based.Among them, space-based method has the advantages of global coverage, access at any time, and real-time information return, and have a wide range ...
Jianxiang CHU, Yin HUANG, Chong WANG, Yunze CAO   +3 more
doaj  

A Multiple Access Protocol Based on Gray Forecast for Satellite Network

Future Internet, 2018
A satellite network’s multiple access protocol must be well designed to efficiently occupy channel resources and meet various qualities of service requirements. In this paper, a combined free/demand assignment multiple access protocol based on gray
Chong Han, Zilong Li, Jian Zhou, Lijuan Sun, Siyu Chen   +4 more
doaj   +1 more source

LEO Mega-Constellations for 6G Global Coverage: Challenges and Opportunities

IEEE Access, 2021
Mega-constellations have the potential for providing 6G Internet owing to the unique advantage of global coverage. However, current satellite technologies are not omnipotent.
Haoran Xie, Yafeng Zhan, Guanming Zeng, Xiaohan Pan   +3 more
doaj   +1 more source

Queue-Sharing Multiple Access [PDF]

Proceedings of the 23rd International ACM Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, 2020
Queue-Sharing Multiple Access (QSMA) is introduced and analyzed. The new channel-access method consists of establishing and maintaining a distributed transmission queue among nodes sharing a common channel and results in a sequence of queue cycles, with each cycle having one or multiple queue turns with collision-free transmissions from nodes that have
Garcia-Luna-Aceves, J.J., Cirimelli-Low, Dylan   +1 more
openaire   +2 more sources

Guiding Multiple Sclerosis Care: An Update to the 2013 Consensus Statement from the MS in the 21st Century Steering Group

Neurology and Therapy
Introduction In 2013, the “MS in the 21st Century” (MS21) initiative established a consensus statement for multiple sclerosis (MS) standards of care, with an overall vision including “Full access to personalised treatment, with reimbursement, to achieve ...
Raed Alroughani, Elisabeth G. Celius, Helen Gray, Elisabeth Kasilingam, Paola Kruger, Amanda Montague, Celia Oreja-Guevara, Amber Plant, Maija Pontaga, Peter Rieckmann, Leslie Ritter, Marja-Liisa Sumelahti   +11 more
doaj   +1 more source