Advances in Communications Satellite Systems: Proceedings of the 36th International Communications Satellite Systems Conference (ICSSC-2018)

Cover
Contents
Preface and Acknowledgements
Author Biographies
Section 1 – Multi-beam Satellite Systems
1 Symbol vs block level precoding in multi-beam satellite systems
Introduction
System Model and Problem Statement
System Model
Beam Pattern Over Europe
Problem Statement
Precoding Techniques
Block-Level Precoding
Symbol Level Precoding
Complexity Comparision
Simulation Results
Conclusions and Further Research
Acknowledgments
References
2 Hardware Demonstration of Precoded Communications in Multi-Beam UHTS
Introduction
Hardware Demonstrator
System Model
Gateway
Channel Emulator
User Terminal
Resource Occupation in FPGAs
Conclusion
Acknowledgments
References
3 On the capacity of asynchronous cooperative NOMA in multibeam satellite systems
Introduction
System Model
Channel Model
Proposed Cooperative NOMA
Gaussian Multi-Access Channels with ISI
Two-User Channel with H(w) … G(w)
Two-User Channel with H(w) = G(w)
Simulation Results
Asynchronous Multi-Access Channel: Capacity Region
Asynchronous MAC
Asynchronous NOMA-Single Content Transmission
Simulation Results
Conclusion
Acknowledgments
References
4 Overlapping clustering for beam-hopping systems
Introduction
Related research works
Frequency efficiency improvements for HTS
Signalling aspects
Availability and a number of gateways
Beam hopping systems
Efficiency degradation of conventional method
Proposed overlapping clustering method
Performance evaluation
Simulation settings
Evaluation results
Conclusion
References
5 Adjacent beams resource sharing to serve hot spots: a rate-splitting approach
Introduction
System Model
Hot-spot Scenario
Satellite payload
Non-Coherent Rate-Splitting ( NCRS)
Rate Optimization
Competitive techniques
Partial CSIT
Full CSIT
Numerical Results
Conclusions
Acknowledgments
References
Section 2 – Cognitive Communications and Propagation Channel Optimization
6 Time Correlation Used to Improve Time Diversity Gain of Rainfall Prediction
Introduction
Data Description
Methodology and Results
Improvement of Diversity Gain Formulas
Conclusion
References
7 Protection of the Mobile Station from the Interference by Maritime Earth Station in Motion in the 28 GHZ Band
Introduction
Interference Scenario
System Characteristics
Results
Conclusions
Acknowledgments
References
8 Rateless codes for satellite systems over rain fading channels
Introduction
Satellite system with ACM
Proposed scheme
Operational principle
Joint soft-iterative decoding
Simulation results
Simulation model
Performance comparison with simulation results
Conclusion
Acknowledgments
References
9 Channel States Information based Spectrum Sensing Algorithm in Satellite Cognitive Communication Networks
Introduction
System Model And Cognitive Scenario
Cognitive Scenario
System Model
Channel States Information Based Spectrum Sensing Algorithm
Algorithm Performance Verification And Discussion
Conclusion
Acknowledgments
References
10 Wideband nonlinearities correction in digital payloads channels with parallel architectures
Introduction
Parallel HW implementation
Methodology
Many-Core DSP Architecture
Software defined Volterra filter design
Conclusions and Future Works
References
Section 3 – Flexible High Throughput Satellite Systems and Interference Mitigation Techniques
11 Modifications to Multi-beam Systems for DRRM
Introduction
Current HTS System Architecture
HTS System for DRRM Communications
Transponder Modification
Sample Digital Analysis Filter Bank Design
Conclusions
References
12 Adaptive Resources Allocation for Flexible Payload enabling VHTS systems: Methodology and Architecture
Introduction
Problem Definition
Methodology for Adaptive Resource Allocation
Study Cases
Coverage Optimization
Adaptive Resource Allocation Comparison
Payload Architecture
Conclusion
Acknowledgments
References
13 Adaptive Onboard Compensation of Non-Linear HPAsand Imperfect Butler Matrices in Multiport Amplifiers for High Throughput Satellites
Introduction
Multiport Amplifier Architecture
Conventional linear MPA model
Practical issues with conventional MPAs
Proposed Two-Step Method
Simulation results
PSD Analysis
BER analysis
Conclusion
References
14 Distributed precoding for multiple satellite systems with overlapping coverage areas
Introduction
Multibeam satellite systems: beyond state-of-the-art
Multiple satellites systems: benefits and challenges
Motivation
Signal model and problem formulation in MS-COV architecture
Precoding scheme in MS-COV configuration
CSI feedback mechanism
Feed selection method in MS-COV
Numerical Results
Simulation Setup
Results
Conclusion
Acknowledgments
References
15 Productized Multicarrier Predistortion Total Throughput Gainsaround 20% over Linearized Channels in True Customer Use Cases
Introduction
Assessed use cases
Satellite parameters
Waveform parameters
Measuring methodology
Measurement setup in the lab
Measurement setup over satellite
Gain measurement
Predistortion gain leverages in a large throughput gain in an unbalanced carrier scenario
Numerical results
Power balanced scenario over satellite
Power unbalanced scenario over satellite
Lab results
Conclusion
Acknowledgments
References
16 A mitigation technique for adjacent channel interference in communication satellites
Introduction
Methodology
Results
Conclusion
Acknowledgments
References
Section 4 – New Satellite System Architectures and Components
17 Novel RF architectures and technologies for VSAT
Introduction
Near and Long Term VSAT Architectures
Relevant Passive Technologies
Tunable High-Q Filters
Compact Diplexers
Low loss Phase Shifters
Relevant Active Technologies
GaN HPAs
High-speed ADCs and DACs
LNAs/LNBs
Conclusion
References
18 A Modular Architecture for Low Cost Phased Array Antenna System for Ka-Band Mobile Satellite Communication
Introduction
System Model and Antenna Aperture Requirements
Modular Architecture Approach of large Scale Phased Array Antenna
Design and Implementation of APAA Module
Active phased array antenna: Super Module
Results
Conclusion
Acknowledgments
References
19 A cots-based software-defined communication system platform and applications in LEO
Introduction
Hardware
Active phased-array antenna (APA)
Software defined radio (SDR)
Single-board computer (SBC)
Power conditioning unit (PCU)
Applications
Example 1: Regenerative active phased array payload
Example 2: Physical-layer assisted ranging
Summary
References
20 V-band low-noise amplifier module for high throughput satellite applications
Introduction
LNA unit design
Key elements of the LNA module
WG-MS Transition
LNA MMIC
Voltage Variable Attenuator (VVA)
MLA MMIC
LNA module test results
Conclusions
Acknowledgement
References
21 Satellite payload design for cislunar communications
Design requirements
Coverage area and constellation design
Radio propagation
Spectrum resources
Frequency plan
Reference scenario
Capacity planning
Baseline design
K-band communications payload
UHF-band communications payload
S-band communications payload
Payload Schematic diagram
K-band spot beam antennas
K-band Gateway antenna
K-band antenna control electronics unit (ACU)
UHF-band antenna
S-band antenna
Frequency conversion
Channel multiplexing and filtering
High power amplification
UHF Digital Signal Processor
Signal level analysis
Conclusions
References
Section 5 – High Speed Optical Communications and Feeder Links
22 Alphasat, Sentinel-1A/B, Sentinel-2A/B, and EDRS Paving theWay for Systematic Optical Data Transfer for Earth Observation Missions
Introduction
The Laser Communication Terminal (LCT)
The Ka-Band Transmitter
Optical Inter-Satellite Link Execution Concept
Alphasat TDP1, Sentinel-1A . . . and -2A, -1B, and -2B: optical partners in orbit
Alphasat ( ASA) and Sentinels OISL Operations
The European Data Relay Satellite System
Links and System Performance
Conclusions
References
23 Diversity Architectures for High Data Rate Ground-to-Satellite Optical and EHF Links
Introduction
Satellite Systems with EHF and Optical Ground Space Links
Use Cases for Ground Space Link Diversity
Unified Network Layer Model for Diversity Switching
Linear Programming-Based Optimization Model
System Design Phase
Operational Phase
Implementation Considerations
Conclusion
References
24 Research and development approach to realize flexible opticalground network operations for effective data downlink from space to ground
Introduction
Methodology
Optical ground network system
Cloud monitoring and determination method
Optical network planning method
Optical network control method
Results
Conclusion
Acknowledgments
References
Section 6 – VHF Data Exchange Systems
25 On the VHF radio channel for the data exchange system via satellite (VDE-SAT); experimental results from the NORSAT-
Introduction
Experiment Overview
NorSat-2 transmitter
Ship receiver
Results
Received beacon carrier power
Signal fading
Noise and interference
Signal-to-noise ratio
Time variability
Conclusion
Acknowledgments
References
26 Field trials of the VHF data exchange system (VDES) satellite downlink component
Introduction
Measurement campaign Location
Receiver station hardware
Captures configuration
Data collection summary
Data processing
VDES components conditioning
CW carrier
BPSK/CDMA modulated carrier
Results
Signal level measurements and channel characterization
Carrier to noise plus interference density ratio estimation
Signal to interference plus noise ratio (SINR)
Channel equalizer impact
Conclusions
Acknowledgments
References
Section 7 – Mobile Satellite Systems and Bandwidth Efficient Techniques
27 Mobility enhancement for digital video broadcast networks via satellite
Introduction
Radio Propagation Channel Models
The DVB-S2
Implementation of 16-APSK and 32-APSK in a Mobile Satellite Channel Environment
Channel Model Selection and Parameters
Channel Model Selection Criteria
Mobility and Doppler shift
Results and Discussion
Conclusion
References
28 System level modelling of DVB-S2X in high throughput satellite system
Introduction
System level modelling
Satellite Network Simulator 3
DVB-S2X modelling
Simulation results
Case 1: Uniformly distributed SINR range
Case 2: Cell capacity
Case 3: Burst throughput
Conclusion
References
29 Demonstration of Autonomous Bandwidth Allocation Scheme using SC-FDMA Subcarrier Switching
Introduction
Autonomous Bandwidth Allocation Scheme ( ABAS)
Configuration of ABAS Prototype
Modulation and demodulation adopting SC-FDMA
Platform and block diagram
Measurement Results
Verification of error free
BER performance
Conclusion
References
30 Robust initial access technique of spread spectrum based on DVB-RCS2 standard for mobile application
Introduction
Some Descriptions
Service scenario
Comparative Analysis of spread spectrum scheme
Modulator
Channel Model
Burst Detector Design
Overall demodulator architecture
Conventional approach for burst detector
Proposed approach for burst detector
Numerical Results
Conclusion
Acknowledgments
References
31 Beam-hopping over-the-air tests using DVB-S2X super-framing
Introduction
Test Setup and Employed Devices
System and Satellite Configuration
Signal and Waveform Configuration
Details of the Test Setup
Test Methodology and Goals
Over-The-Air Test Results
Observations and General Insights
Network Synchronisation Results
Evaluation of Terminal Measurement Statistics
Effects, Artefacts and Impairments
Conclusions
Acknowledgments
References
Section 8 – Transmitter and Modern Technologies
32 Maximizing data throughput in earth observation satelliteto ground transmission by employing a flexible high data rate transmitter operating in X-Band and Ka-Band
Introduction
Overall Modulator Design
Digital Processing Design
Predistortion
Characteristics of High Data rate Modulator
Verification of Design
End-to-End Performance
Applications
Application for Data Downlink Transmission in Earth Observation Satellites
Usage in Relay Payloads
Evolution: Integrated Transmitter
Conclusions
Acknowledgments
References
33 Implementation of a Machine Learning Based Modulation Scheme in GNURadio for Over-the-Air Packet Communications
Introduction
Auto-encoder model of an RF communication system
GNURadio Implementation
Packet Transmitter Flowchart
Packet Receiver Flowchart
Custom GNURadio Blocks
Incorporating the Training Program and GNURadio Flowcharts
Asynchronous Architecture
Transmitter
Receiver
Conclusions, Challenges, and Future Prospects
References
34 An efficiency comparison between timeslicing and multi-carrier transmission for linearized transponders
Introduction
A Need for wide forward carriers
Timeslicing to have affordable receivers
Implementation of timeslicing using virtual carriers
A Concept of virtual carriers to achieve a modularsystem implementation making abstraction of the physical layer
A timeslice selector forcing force-empty frames when needed
Efficiency comparison between single wideband and multi-carrier transmission
Seamless load balancing between virtual carriers
Conclusion
Acknowledgments
References
Section 9 – 5G and Satellite Networks Integration
35 Efficient 5G Edge Caching Over Satellite
Introduction
Technological Enabler for Satellite-assisted Edge Caching
Hybrid Satellite
Integrated Satellite-Terrestrial System
System model and caching algorithm
Caching via Broadcast mono-beam
Caching via Broadband multi-beam
Caching via Hybrid design
Cost per bit calculation
Numerical results
Conclusions and Future Works
Acknowledgments
References
36 Use cases to business modelling of satellite backhaul in 5G
Introduction
Use Cases
Selected use cases
Background developments
Related deployment opportunities
Key performance indicators (KPIs)
The role of KPIs
Satellite and 5G KPIs
Mapping of SaT5G use cases to 5G PPP KPIs
Architecture
Roadmap and technical requirements for satellite architectures
Backhaul architectures and 3GPP
Business implications on the architecture
Business case
Methodology
Model and key assumptions
Findings
Conclusion
Acknowledgments
References
37 5G technologies for a communications and navigation integrated infrastructure on moon and mars
Introduction
Why 5G for the Moon and Mars?
A lunar/martian communications network
Communications with Earth
Positioning, Navigation and Timing
Conclusion
References
Section 10 – Satellite Networks Design Challenges and Applications
38 Capacity enhancement and interference management for interactive satellite networks
Introduction
Interference Management Techniques
Reference Scenarios Configuration
System Model
State-of-the-Art, Four Color Frequency Mapping
Interference Management Methodology
Preliminary Performance Evaluation
Simulation Results
Non-Spreading Cooperative NOMA Simulation Results
Spreading CDM NOMA Simulation Results
Conclusion
Acknowledgments
References
39 VLEO Satellites – a New Earth Observation Space Systems Commercial and Business Model
Introduction
Earth Observation Applications-Benefits and Challenges
Benefits of VLEO
Challenges of VLEO
Aerodynamic Torques
Electric Propulsion
Atmospheric Environmental Conditions
Electric Propulsion Concepts
New Applications
CubeSat Applications
Conclusions
References
40 Towards the Internet for Space: bringing cloud computing to space systems
Introduction
Background
Cloud computing
High-speed intersatellite communication
Distributed data processing and storage
Space cloud
Autonomous and decision making in orbit
Virtual space missions
The starting-up problem
ISS cloud computing services
O-ISL terminal
Processing module
Data storage
Downlink
Conclusions
References
Index
Back Cover