Results 71 to 80 of about 2,093,139 (198)

A TDM synchronization system for multiple access satellite communication [PDF]

open access: yes
Time Division Multiple Access /TDMA/ system for satellite communication with ground station ...
Allen, W. K., Singleton, J. L.
core   +1 more source

Link budget comparison of different mobile communication systems based on EIRP and EISL [PDF]

open access: yesAdvances in Radio Science, 2004
The metric EISL (Equivalent Isotropic Sensitivity Level) describing the effective sensitivity level usable at the air interface of a mobile or a basestation is used to compare mobile communication systems either based on time division or code division ...
G. Fischer, F. Pivit, W. Wiebeck
doaj  

An analytical model for wireless mesh networks with collision-free TDMA and finite queues

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Wireless mesh networks are a promising technology for connecting sensors and actuators with high flexibility and low investment costs. In industrial applications, however, reliability is essential.
Florian Kauer, Volker Turau
doaj   +1 more source

Dynamic WDM-TDM Access Networks Featuring Wired-Wireless Convergence

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2016
Growth in the use of devices with Internet access and migration of telecommunications to IP technology have made the bandwidth demanded by users appear for the first time in a long time a limited resource.
Elkin Fabián Aguas-Martínez   +2 more
doaj   +1 more source

Circuit-switch architecture for a 30/20-GHz FDMA/TDM geostationary satellite communications network [PDF]

open access: yes
A circuit switching architecture is described for a 30/20 GHz frequency division, multiple access uplink/time division multiplexed downlink (FDMA/TDM) geostationary satellite communications network.
Ivancic, William D.
core   +1 more source

Hybrid NOMA-TDMA for Multiple Access Channels with Non-Ideal Batteries and Circuit Cost

open access: yes, 2018
We consider a multiple-access channel where the users are powered from batteries having non-negligible internal resistance. When power is drawn from the battery, a variable fraction of the power, which is a function of the power drawn from the battery ...
Bhat, Rajshekhar Vishweshwar   +2 more
core   +1 more source

Loosely synchronized spreading code aided network performance of quasi-synchronous UTRA-like TDD/CDMA systems

open access: yes, 2005
In this paper we investigate the achievable capacity of a UTRA-like Time Division Duplex (TDD) Code Division Multiple Access (CDMA) system employing Loosely Synchronized (LS) spreading codes. The family of operational CDMA systems is interference limited,
Hanzo, L., Hua, W., Ni, S.
core  

Loosely Synchronised Spreading Code Aided Network Performance of Quasi-Synchronous UTRA-like TDD and FDD CDMA Systems

open access: yes, 2005
It is demonstrated that loosely synchronised (LS) spreading codes exhibit a so-called interference-free window, where both the autocorrelation and cross-correlation of the codes become zero.
Hanzo, L., Hua, W., Ni, S.
core   +1 more source

Time Division Multiple Access–Non-Orthogonal Multiple Access-Assisted Heterogeneous Semantic and Bit Communications

open access: yesElectronics
Considering the coexistence of semantic and bit transmissions in future networks, transmission policy design is crucial for heterogeneous semantic and bit communications to improve transmission efficiency. In this paper, we investigate downlink semantic and bit data transmissions from the access point (AP) to several semantic users and a bit user, and ...
Wei Jiang   +3 more
openaire   +1 more source

Service offerings and interfaces for the ACTS network of Earth stations [PDF]

open access: yes
The Advanced Communications Satellite (ACTS) is capable of two modes of communication. Mode 1 is a mesh network of Earth stations using baseband-switched, time-division multiple-access (BBS-TDMA) and hopping beams.
Coney, Thom A.
core   +1 more source

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