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Capacity Enhancing Techniques for High Throughput Satellite Communications
[chapter]
2015
Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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These include satellite-switched smart gateway diversity, interferenceaware scheduling (IAS) for the forward link and scheduling based on multi-partite graph matching for the return link. ...
These include advanced predistortion and equalization techniques for the forward link, synchronization and non-linear distortion minimization techniques for the return link waveforms. ...
1.8 dB for TDMA with 5% roll-off, 0.3 − 1.1 dB for SC-FDMA and
1.1 − 2.5 ...
doi:10.1007/978-3-319-25479-1_6
fatcat:k5pjuc2ylfdlrfcdi4hb24rkli
Implementation Strategies for a Universal Acquisition and Tracking Channel Applied to Real GNSS Signals
2016
Sensors
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A discussion on acquisition approaches and conclusive remarks follow, which open up a new signal selection challenge, rather than satellite selection. ...
In fact, the universal channel allows sequential acquisition and tracking of any chipping rate, carrier frequency, FDMA channel, modulation, or constellation, and is totally configurable (any integration ...
The EML tracking architectures for BOC, should offer a code tracking improvement of over BPSK. ...
doi:10.3390/s16050624
pmid:27144569
pmcid:PMC4883315
fatcat:xydvfetjjvcsrnwnh53xy6stlu
Iterative Cancellation of Non-Linear Distortion Noise in Digital Communication Systems
2015
IEEE Transactions on Communications
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The performance is assessed for time division multiple access (TDMA), orthogonal frequency division multiple access (OFDMA) and single-carrier frequency division multiple access (SC-FDMA) waveforms. ...
In SC-FDMA, the gain is in the range of 0.3 − 1.1 dB, while gains of 0.1 − 0.8 dB and 0.2 − 1.9 dB are presented in TDMA with 20% roll-off and 5% roll-off, respectively. ...
In addition, SC-FDMA and OFDMA have been compared for the return satellite link for amplifier characteristics in the K and S bands in [5] . ...
doi:10.1109/tcomm.2015.2424241
fatcat:uknwr36wuzaihbcz6guacsjqbu
Feasibility of using a software‐defined baseband for multiple space per aperture (MSPA) ground operations
2021
International Journal of Satellite Communications And Networking
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The study starts by reviewing MSPA methods already studied by space agencies such as NASA and ESA before going to MSPA methods proposed in the latest CCSDS blue book on RF and modulation systems. ...
The SDB is customized to offer traditional telemetry, tracking, and command (TT&C) services for near-Earth missions operating in S band. ...
In satellite constellations, the satellites are typically distributed over several orbital planes and spread within each orbital plane. ...
doi:10.1002/sat.1420
fatcat:a4ryek3hxfcotiydu3kq6xwdky
Uplink-downlink design issues for next generation satellite networks
2002
Wireless Communications and Mobile Computing
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Providing global coverage and mobility, satellite systems will play an important role in order for this to be achieved. The design options of satellite systems include several choices. ...
This new scheme is called CDMA/PRMA and from the results obtained it is a very promising access technique for next generation satellite systems. ...
On the negative side, the requirements for more accurate pointing, acquisition and tracking (PAT) and the impact that this may have on the spacecraft could impose an unwelcome burden. ...
doi:10.1002/wcm.59
fatcat:ojsej4jmejdixahuicvls3ndwu
The IEEE-SA Working Group on Spaceborne GNSS-R: Scene Study
2021
IEEE Access
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technologies for monitoring and control, orbit and clock data provision, additional payloads and new signals (L1 OF, L2 OF, L1 SF, L2 SF, L1 OC, L1 SC, L2 OC, L2 SC, L3 OC). ...
Each satellite orbits the Earth twice every sidereal day, and the same ground track is repeated once per day. ...
doi:10.1109/access.2021.3089762
fatcat:4dx5adyg2fe7dnxeet62zjlcdi
New method for positioning using IRIDIUM satellite signals of opportunity
2019
IEEE Access
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Next, the instantaneous Doppler positioning algorithm is introduced, and the effects of measurement errors and satellite orbital errors on the positioning solution are analyzed by a new method. ...
The global navigation satellite system (GNSS) system has a number of disadvantages such as weak signal strength and high cost, while signals of opportunity (SOPs) can make up for these shortcomings. ...
The results of Iridium signal acquisition and Iridium SOPs positioning are presented, as described below.
1) ACQUISITION OF IRIDIUM NEXT SIGNALS The IRIDIUM system uses a combination of SDMA, FDMA, TDMA ...
doi:10.1109/access.2019.2924470
fatcat:jgyyp3qftve4xdapug32emp3cu
Differentiated Statistical QoS Guarantees for Real-Time CBR Services in Broadband Wireless Access Networks
2010
2010 International Conference on Computational Intelligence and Software Engineering
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Zhao
31594
The Codebook Design for MIMO Precoding Systems in LTE and LTE-A
Jin Wang
31597
A Method for PAPR Reduction Using Pilot Sequences in SC-FDMA
Li Lei
31600
A Vertical Handoff Decision ...
Basin& China 31758 Temporal Influences on Thresholding for Satellite Retrieval of Water Surface Areas: A Case in the Poyang Lake, China Ping Song 31761 Estimating evapotranspiration using triangle method ...
doi:10.1109/wicom.2010.5601439
fatcat:kaereulmjzhbdpknj727a4vuri
A USRP2-based reconfigurable multi-constellation multi-frequency GNSS software receiver front end
2012
GPS Solutions
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classbased software receiver processing functions were developed to process the IF data for GPS L1, L2C, and L5 and GLONASS L1 and L2 signals collected by the USRP2 front end. ...
The results show that for GPS signals, the USRP2 front end typically generates carrier-to-noise ratio (C/N 0 ) at 1-3 and 1-2 dB below that of the high end front end and a NovAtel receiver, respectively ...
and the source are credited. ...
doi:10.1007/s10291-012-0263-y
fatcat:6qlqd5lvsnc7xfhpne7yhzaepy
High-Speed Satellite Mobile Communications: Technologies and Challenges
2004
Proceedings of the IEEE
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Focusing in particular on the nonlinear downlink channel behavior as well as shadowing and multipath fading, various physical channel models for characterizing the mobile satellite systems are presented ...
This paper presents an overview of the future high-speed satellite mobile communication systems, the technologies deployed or planned for deployments, and the challenges. ...
Cao (Queen's University, Kingston, ON, Canada) for his comments on Sections II and IV, as well as Dr. K. Navaie (University of Toronto, Toronto, ON, Canada) and Dr. H. ...
doi:10.1109/jproc.2003.821907
fatcat:snyicgivbzfele2b7bq4hvqyuq
Introduction to Satellite Communications
[chapter]
2009
Satellite Systems Engineering in an IPv6 Environment
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The SCCF receives data on satellite acquisition and tracking from each ground station. This information is used to update and check the computer's ephemeris data bank.
3-4. ACQUISITION. a. ...
Satellite acquisition and tracking is a major element in the operation of a satellite communications link. ...
This method is particularly good for checking the tracking capability of the system.
c. ...
doi:10.1201/9781420078695.ch1
fatcat:pi6avqf3bvfpbbjfh3ydt56leq
Introduction to Satellite Communications
[chapter]
1993
Satellite Communications
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The SCCF receives data on satellite acquisition and tracking from each ground station. This information is used to update and check the computer's ephemeris data bank.
3-4. ACQUISITION. a. ...
Satellite acquisition and tracking is a major element in the operation of a satellite communications link. ...
This method is particularly good for checking the tracking capability of the system.
c. ...
doi:10.1007/978-1-4615-3230-9_1
fatcat:udscybpazfc6tl3wy3ipfqpk44
Introduction to Satellite Communications
[chapter]
2011
Satellite Communications
Preserved Fulltext
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The file type is application/pdf.
The SCCF receives data on satellite acquisition and tracking from each ground station. This information is used to update and check the computer's ephemeris data bank.
3-4. ACQUISITION. a. ...
Satellite acquisition and tracking is a major element in the operation of a satellite communications link. ...
This method is particularly good for checking the tracking capability of the system.
c. ...
doi:10.1007/978-1-4614-1994-5_1
fatcat:kkyj7uxunzhajleklqslj46lbm
Introduction to Satellite Communications
[chapter]
2014
Mobile Satellite Communications Handbook
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The SCCF receives data on satellite acquisition and tracking from each ground station. This information is used to update and check the computer's ephemeris data bank.
3-4. ACQUISITION. a. ...
Satellite acquisition and tracking is a major element in the operation of a satellite communications link. ...
This method is particularly good for checking the tracking capability of the system.
c. ...
doi:10.1002/9781118907658.ch1
fatcat:hfoeamudnve7rn6lqdk7kikof4
Introduction to Satellite Communications
[chapter]
2008
Satellite Communications Systems Engineering
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The SCCF receives data on satellite acquisition and tracking from each ground station. This information is used to update and check the computer's ephemeris data bank.
3-4. ACQUISITION. a. ...
Satellite acquisition and tracking is a major element in the operation of a satellite communications link. ...
This method is particularly good for checking the tracking capability of the system.
c. ...
doi:10.1002/9780470754443.ch1
fatcat:lxyio6onrjcgxd5ba4go7nsjga
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