Filters








4,303 Hits in 5.4 sec

Network architecture of internet backhaul by DVB-RCS standards for shipborne and other mobile applications

Dimov Stojce Ilcev
2020 International Journal of Engineering & Technology  
Mobile Satellite Internet aims at providing the next generation satellite broadcasting service through C, Ku and Ka-band DVB-S2 standard for Mobile Earth Stations (MES) via GEO satellite and Land Earth  ...  It is de facto a mobile interactive broadcast satellite access system, which provides both TV broadcasting and high-speed Internet broadband based on DVB-S/DVB-RCS standards, Internet Protocol (IP) network  ...  The mobile user needs hybrid equipment like an Inmarsat MPDS terminal, comprising a stabilized L-band satellite antenna and an MPDS transceiver, a stabilized C or Ku-band satellite receive only antenna  ... 
doi:10.14419/ijet.v9i3.31087 fatcat:zt6s2uk6ivbpdb7tvw23kttu2a

E-SSA satellite messaging return channel: Performance analysis and field trials results

T. Heyn, P. Nagel, B. Niemann, A. Recchia, F. Collard, R. Hermenier, M.A. Marchitti, M. Andrenacci, G. Mendola
2012 2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC)  
The overall system architecture has recently been standardized by ETSI under the name of S-MIM (S-band Mobile Interactive Multimedia).  ...  The measured Packet Error Rates of transmissions via satellite at different terminal power levels confirm the theoretical link budget calculations for single and multiple simultaneously transmitting terminals  ...  They are in particular thankful to the FP7 and the European Commission for funding the SafeTRIP project.  ... 
doi:10.1109/asms-spsc.2012.6333076 dblp:conf/asms-spsc/HeynNNRCHMAM12 fatcat:qpn2xa4aanczbc4y66ffb3gjse

Airborne antenna systems for DVB-RCS solutions

Dimov Stojce Ilcev
2016 2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT)  
Protocol Television (IPTV) solutions, Ka-band transceiving antenna system for DVB-RCS solutions, Antenna Systems for Aeronautical Satellite Broadcasting (ASB) are discussed.  ...  This paper introduces development and implementation of new Airborne Satellite Antenna (ASA) used for Very Small Aperture Terminal (VSAT) of Aeronautical Satellite Broadband System (ASBS) known as a Digital  ...  Mobile terminals provide two-way Multimedia IP communications via adequate GEO satellite at C/L, Ku or K-band frequencies, for Maritime, Land and Aeronautical mobile applications.  ... 
doi:10.1109/iceeot.2016.7755566 fatcat:qjwkfkvsl5bfzcieoo3f6ltbda

Architecture of the global navigation satellite system for maritime applications

Dimov Stojce Ilcev
2020 TELKOMNIKA (Telecommunication Computing Electronics and Control)  
This system uses two satellite frequency bands such as at: S-band in normal functional operations and Unified S-band (USB) is in use while the satellite is being transferred to its final orbit, or in the  ...  The MTAS spacecraft may also have an innovative payload for the maritime mobile satellite communication service, which will be similar to the Inmarsat mobile satellite communication system (MSC).  ... 
doi:10.12928/telkomnika.v18i3.15640 fatcat:qvjvltlicvhwtiinufylbr3s2i

Satellite systems for personal communications

J.V. Evans
1997 IEEE Antennas & Propagation Magazine  
The origin and evolution of mobile satellite communications is discussed first, including the Inmarsat system and several land-based mobile satellite systems currently in operation.  ...  A number of industry groups are planning to construct satellite systems that will provide personal communications services (PCS's) (typically voice, data, and fax) to users over small, handheld, cellular-type  ...  These satellites, like their predecessors, employed a single L-band global beam for servicing mobile users.  ... 
doi:10.1109/74.598556 fatcat:lrutqigvxfh4dh2fkrlnp62f7q

Services, technologies, and systems at Ka band and beyond-a survey

F. Gargione, T. Iida, F. Valdoni, F. Vatalaro
1999 IEEE Journal on Selected Areas in Communications  
It surveys the evolution of Ka band geostationary Earth orbit (GEO) satellite communications until the present stage of development of systems for direct-to-user (DTU) provision of interactive multimedia  ...  This paper discusses system and technology aspects crucial to the development of satellite communications at Ka band (20-30 GHz) and beyond.  ...  An EHF personal terminal is used with a 0.3-m diameter antenna. A second terminal simulates a user satellite with a 2-m diameter antenna for intersatellite communications experiments.  ... 
doi:10.1109/49.748777 fatcat:thfjvcxipraynhduxexank37eq

Multi-system automotive antenna for mobile satellite communications applications

Cesar Dominguez, Jose Padilla, Ferdinando Tiezzi, Rainer Wansch, Alexander Popugaev, Luca Salghetti Drioli
2012 2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC)  
The antennas are optimized for the new European S-band mobile satellite systems and in addition they include also the capabilities for GPS and GSM/UMTS bands.  ...  This paper presents two multi-system antennas designed for automotive mobile satellite communication applications.  ...  S-BAND RX-ONLY ANTENNA The S-band Rx-only antenna (JMO1-R) provides the front-end functions for 3 systems: S-band downlink, positioning and navigation and terrestrial mobile communications.  ... 
doi:10.1109/asms-spsc.2012.6333108 dblp:conf/asms-spsc/DominguezPTWPD12 fatcat:lxzcxzi66zdizbydrotv3kjcze

Satellite systems for personal communications

J.V. Evans
1998 Proceedings of the IEEE  
The origin and evolution of mobile satellite communications is discussed first, including the Inmarsat system and several land-based mobile satellite systems currently in operation.  ...  A number of industry groups are planning to construct satellite systems that will provide personal communications services (PCS's) (typically voice, data, and fax) to users over small, handheld, cellular-type  ...  These satellites, like their predecessors, employed a single L-band global beam for servicing mobile users.  ... 
doi:10.1109/5.681367 fatcat:ouvjdfcwb5ghvg4iv6xysgr57a

Land mobile satellite communication system using the geostationary platform

M. KOHMURA, Y. OTSU, K. MIYASAKA, H. UDA
1993 Journal of Spacecraft and Rockets  
2Miura, S., et al., ‘‘Experimental Mobile Satellite System for COMMUNICATION SYSTEM Communication Using ETS-V,’’ International Astronautical Federa- tion, Paper 84-87, 1984. 3Divsalar, D., et al., ‘‘Trellis-Coded  ...  . '6Yoshimoto, S., et al., “‘A Tradeoff Study on 22 GHz-Band Multi- beam Satellite Broadcasting Systems,’’ 11th AIAA Communication Satellite Systems Conference, AIAA Paper 86-0640, San Diego, CA, March  ... 
doi:10.2514/3.11532 fatcat:ikw5xhwurnemtotzzx6yugcjb4

An enhanced cross‐layer solution for IFC applications using HTS systems at Q/V‐band

Behzad Koosha, Omid Manoochehri, Hermann J. Helgert
2022 Engineering Reports  
The Q/V band communication systems open new avenues for next generation of high-throughput satellite (HTS) systems.  ...  Having a wide bandwidth at Q/V band makes it permissible to offload the links between the satellite and its earth station hubs (gateway) from the Ka band to the Q/V band.  ...  In addition to the previous system analysis, a highly directional lens antenna for a satellite communication system at V band (40-50 GHz) is proposed.  ... 
doi:10.1002/eng2.12477 fatcat:ed7bdyfrk5cfzcofb7w7lepc4q

USING Hybrid Adaptive Techniques to Reduce Multipath Effects in S-PCN Mobile Terminals

Sunday E. Iwasokun, Michael O. Kolawole
2010 Communications and Network  
Multipath signal processing is a promising technique for increasing the capacity of downlink frequency of satellite communication networks (S-PCN).  ...  The paper presents an approach to processing and reducing multipath signals received from S-PCN typified of mobile terminal users in clustered or mountainous environment.  ...  Figure 1 . 1 Hybrid adaptive processing system for S-PCN mobile terminal. Figure 2 . 2 Antenna array's response at typical S-PCN frequencies.  ... 
doi:10.4236/cn.2010.24035 fatcat:muy7bxne7bawji2dqm3xclwyiu

Implementation of E-education in Africa via space digital video broadcasting system

Dimov Stojce Ilcev
2020 Bulletin of Electrical Engineering and Informatics  
without space-enabled communication solutions, such as satellite constellations and stratospheric platform systems (SPS) or high altitude platforms (HAP).  ...  This paper introduces an advanced e-education provision via space systems for Africa or any other regions in remote dispersed communities, such as rural, mining, agriculture, surveying, construction, tourism  ...  ) and MPEG/DVB-S or DVB-S2 with user terminals via corresponding C, Ku or Ka-band satellite transponder.  ... 
doi:10.11591/eei.v9i3.2137 fatcat:f42ghfbevzb4tj75kol7rbq7za

Introduction and Overview

F. Bond, P. Rosen
1979 IEEE Transactions on Communications  
For example, despite spectrum congestion problems, the military UHF band was selected for initial DoD mobile communications satellite programs, primarily because simple aircraft blade antennas as well  ...  For satellite communications systems serving a large number of terminals, terminal cost is a driving factor.  ... 
doi:10.1109/tcom.1979.1094311 fatcat:27b4lfgwejddtlprdnxwasqlga

Radio Access Technologies for Fifth Generation Mobile Communications System: Review of Recent Research and Developments in Japan

Hidekazu MURATA, Eiji OKAMOTO, Manabu MIKAMI, Akihiro OKAZAKI, Satoshi SUYAMA, Takamichi INOUE, Jun MASHINO, Tetsuya YAMAMOTO, Makoto TAROMARU
2016 IEICE transactions on communications  
We try to survey a vast area of wireless communication systems and the developments that led to future 5G systems. key words: fifth generation mobile communication systems, higher frequency band, massive  ...  As the demand for higher transmission rates and spectral efficiency is steadily increasing, the research and development of novel mobile communication systems has gained momentum.  ...  Conclusion With the increasing demand for mobile data communications, higher frequency bands are gaining importance.  ... 
doi:10.1587/transcom.2015cci0004 fatcat:xa47wmjgrrc3zc7wzbrioiglke

Enabling CP terminals for accessing LP satellite transponders via wavefront multiplexing techniques

Donald Chang, Joe Lee, Tzer-Hso Lin
2014 2014 IEEE Global Communications Conference  
The presented techniques enable satellite operators to cost-effectively service Ku-band VSAT users, either in fixed satellite service (FSS) or mobile satellite service (MSS) markets, via LP space assets  ...  Multiple LP transponders become accessible efficiently by CP ground terminals, and vice versa, without modifications of ground user equipment and satellite assets.  ...  The antennas can be used for receive-only, two-way communication or communication among various number of nodes.  ... 
doi:10.1109/glocom.2014.7037243 dblp:conf/globecom/ChangLL14a fatcat:dexvevq2hzetppo5jnielms7ei
« Previous Showing results 1 — 15 out of 4,303 results