Results 21 to 30 of about 2,093,139 (198)

Study on Wireless Communication Network Architecture and Access Control Algorithm in Aircraft [PDF]

open access: yesJisuanji kexue, 2022
With the rapid development of avionics system,a large number of devices and sensors are connected to the in-plane network,which makes the architecture of the in-plane communication network complex and heavy.Wireless communication network can effectively ...
GUO Peng-jun, ZHANG Jing-zhou, YANG Yuan-fan, YANG Shen-xiang
doaj   +1 more source

Energy-efficiency improvements for optical access [PDF]

open access: yes, 2014
This article discusses novel approaches to improve energy efficiency of different optical access technologies, including time division multiplexing passive optical network (TDM-PON), time and wavelength division multiplexing PON (TWDM-PON), point-to ...
Anthapadmanabhan, P   +8 more
core   +1 more source

Study on interleave-division multiple-access technology over complicated time-variant channels

open access: yes上海师范大学学报. 自然科学版, 2015
In this paper,the IDMA technology is studied in complicated time-variant multipath channels.A theoretical derivation of iterative process in the receiver which is suitable for WBAN transmission property will be given based on central-limit theorem.By the
ZHU Ya, ZHOU Xiaolin
doaj   +1 more source

Hybrid Space-Frequency Access for Underwater Acoustic Networks

open access: yesIEEE Access, 2022
Underwater acoustic networks have recently risen as an effective support to several marine and oceanic applications. However, the potential presence of a large number of nodes simultaneously connected has pushed the scientific community to address the ...
Andrea Petroni   +6 more
doaj   +1 more source

Wavelength switched hybrid TDMA/WDM (TWDM) PON: a flexible next-generation optical access solution [PDF]

open access: yes, 2012
In this paper, we propose the system concepts of a next-generation wavelength switched hybrid time division multiple access and wavelength division multiplexing (TWDM) passive optical network (PON) architecture. In this architecture, wavelength selective
Colle, Didier   +4 more
core   +2 more sources

Energy-Efficient Beamforming and Resource Allocation for Multi-Antenna MEC Systems

open access: yesIEEE Access, 2022
This paper studies an energy-efficient beamforming and resource allocation for multi-access edge computing (MEC) systems consisting of multi-antenna access points (APs) and single-antenna users.
Hunwoo Lim, Taewon Hwang
doaj   +1 more source

Analyses of Frequency Division Multiple Access (FDMA) Schemes for Global Mobile Satellite Communications (GMSC) [PDF]

open access: yesTransNav, 2020
This paper introduces analyzes of the Frequency Division Multiple Access (FDMA) applicable in Global Mobile Satellite Communications (GMSC). In satellite systems, as a rule, especially in GMSC many users are active at the same time.
Stojce Dimov Ilcev
doaj   +1 more source

N-time Division Multiple Access Dynamic Slot Allocation Protocol Based on I-Sequential Vertex Coloring Algorithm [PDF]

open access: yesJisuanji gongcheng, 2016
According to the characteristics of Medium Access Control(MAC) layer protocol in mobile Ad Hoc network,combining with the actual engineering requirements,N-time Division Multiple Access(TDMA) dynamic slot allocation protocol based on I-sequential Vertex ...
WANG Lingzhi,CHEN Lingyu,YUAN Aisha
doaj   +1 more source

OCA-MAC: A Cooperative TDMA-Based MAC Protocol for Vehicular Ad Hoc Networks

open access: yesSensors, 2019
Cooperative communication is an effective method of improving the transmission performance for vehicular ad hoc networks. However, the rapid movement of vehicles leads to frequent changes in network topology and reduces the probability of successful data
Yao Liu, Hongjing Zhou, Jiawei Huang
doaj   +1 more source

Preamble time-division multiple access fixed slot assignment protocol for secure mobile ad hoc networks

open access: yesInternational Journal of Distributed Sensor Networks, 2020
Mobile ad hoc networks are the “spontaneous networks” which create a temporary network in any place and any time without using any extra fixed radio device of a full infrastructure network.
Khalid Hussain Mohammadani   +4 more
doaj   +1 more source

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