Results 131 to 140 of about 330 (175)

Satcom Access in the Evolved Packet Core

2012
Satellite communications (Satcom) networks are increasingly integrating with terrestrial communications networks, namely Next Generation Networks (NGN). In the area of NGN the Evolved Packet Core (EPC) is a new network architecture that can support multiple access technologies. When Satcom is considered as another access technology, EPC can provide the
Cano Soveri, M.D., Norp, A.H.J., Popova, M.P.   +2 more
openaire   +3 more sources

Performance considerations for protected wideband satcom

MILCOM 2015 - 2015 IEEE Military Communications Conference, 2015
There is increased interest in using transponded payloads to provide jam-resistant links to users. In the type of system we consider, multiple user terminals transmit to a satellite using a coordinated frequency hopping waveform, and the received signals are relayed to a ground processing “hub” terminal for baseband processing.
Thomas C. Royster IV, James Streitman
openaire   +1 more source

Reliability of SATCOM transmission for PPDR usage

2016 IEEE 12th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2016
Satellite transmission based on IP may play important role for communication between event site and PPDR centers during large planned scenarios and disaster/unplanned ones. Geostationary SATCOM links that can be installed ad-hoc in any location present reliable and efficient way to transmit IP data even for voice communication based on VoIP.
Henryk Gierszal, Evangelos Sdongos, Lukasz Kiedrowski, Dariusz Korzeniowki, Kamil Plucinski, Lukasz Brajer, Piotr Tyczka, Pedro Santo Antonio, Michalis Tsagkaropoulos, Natasha McCrone, James Jackson   +10 more
openaire   +1 more source

Ka-band Integrated Transmitter for SATCOM

2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS), 2020
This paper presents a direct conversion transmitter integrated circuit (IC) implemented in 0.13um SiGe BiCMOS, targeting Ka-band satellite communications. The IC is comprised of an active IQ baseband filter with adjustable cutoff frequency 90 - 720MHz, IQ up-converter with gain control and local oscillator (LO) leakage compensation, LO generation ...
Nikos Naskas, Nikos Alexiou, Spyros Gkardiakos, Aris Agathokleous, Nikos Tsoutsos, Kostas Kontaxis, George Ntounas   +6 more
openaire   +1 more source

SATCOM innovation: Priorities for modern development

MILCOM 2017 - 2017 IEEE Military Communications Conference (MILCOM), 2017
As DoD SATCOM stakeholders and developers, it is vital to understand innovative technical trends and both leverage and influence them in order to best address our priorities. These SATCOM development priorities are growth, adoption of open commercial standards, systemic availability and simplification.
Armando J. Vigil, Mark Jasen, Dahesh A. Khalil   +2 more
openaire   +1 more source

An Algorithmic Approach to Highly Resilient SATCOM

MILCOM 2019 - 2019 IEEE Military Communications Conference (MILCOM), 2019
This paper proposes a generic SATCOM control loop in a generic multivector structure to facilitate predictive analysis for achieving resiliency under time varying circumstances. The control loop provides strategies and actions in the context of game theory to optimize the resources for SATCOM networks.
Lan K. Nguyen, Joseph W. Tringe, Clayton Bosler, David Brunnenmeyer   +3 more
openaire   +1 more source

Innovations in aerospace satcoms

Aircraft Engineering and Aerospace Technology, 1996
Looks at the changes taking place in air traffic services due to the increasing amount of traffic and subsequent pressure from airlines. Describes limitations in using radar and satellite solutions provided by giving examples of satcoms used by airlines today. Details the current trials of ADS (automatic dependent surveillance).
openaire   +1 more source

Review on Cognitive Radio Technology for SatComs

2018
The demand on the crowded spectrum in satellite communication (SatComs) is greatly increasing due to the explosive growth of mobile terminals and applications. However, the present spectrum allocation policy suffers from a lot of drawbacks, because it leaves spectrum holes for the incumbent users.
Hao Yin, Zhenyu Na, Zhian Deng
openaire   +1 more source

Antennas for Satcom-on-the-Move, Review

2014 International Conference on Engineering and Telecommunication, 2014
This article presents a survey on vehicular antennas for on-the-move satellite communication. Main technologies developed for this service are discussed. Antennas designed by different research groups and companies are considered.
Sergey Borisov, Alexander Shishlov
openaire   +1 more source

Software development of SATCOM terminals

MILCOM 2008 - 2008 IEEE Military Communications Conference, 2008
The move to adopt the modular, open-systems approach to SATCOM development has led to open-standards interfaces both for hardware buses and software infrastructure. A software development methodology is presented that enhances the standard Unified Modeling Language (UML)-based object-oriented modeling and design for SATCOM Terminal development.
Piya Bhaskar, null Jianxin Zhao, Tom Rittenbach   +2 more
openaire   +1 more source