Location of Repository

Interference analysis of broadband space and terrestrial fixed radio communications systems in the frequency range 12 to 30 GHz

By Selçuk Kirtay

Abstract

This thesis presents research into the principles of spectrum sharing analysis\ud methods developed for investigating implications of interference from\ud Nongeostationary Fixed Satellite Service (NGSO FSS) systems into Geostationary\ud Fixed Satellite Service (GSO FSS) systems and Fixed Service (FS) terrestrial radio\ud systems operating or planned for operation in the 12 to 30 GHz frequency range.\ud Spectrum sharing is an effective way of allowing new services to operate without\ud cancelling the existing allocations in the same part of the spectrum. The use of\ud spectrum sharing results in re-use of the available spectrum among different services\ud and, therefore, increases the efficient use of the radio frequencies. However, it is\ud necessary to carry out extensive feasibility studies into technical or operational\ud compatibility between the services involved. Often, sharing constraints are placed\ud on systems, such as the power of emissions and the transmitter and receiver antenna\ud pointings to reduce the interference into negligible levels.\ud Traditionally, radio spectrum allocated to GSO FSS has been shared with FS. In\ud recent years, there has been a growing interest in the use of low Earth orbits and a\ud number of NGSO FSS constellations has been designed to provide broadband data\ud services. This has led to the allocation of certain bands used by the FS and GSO\ud FSS systems to NGSO FSS.\ud In line with the new allocations, NGSO FSS, GSO FSS and FS systems are required\ud to co-exist in parts of the 12 to 30 GHz frequency range. The primary objectives of\ud this research were to identify principal factors affecting the feasibility of spectrum\ud sharing and to develop spectrum sharing analysis methodologies to examine the\ud implications of these factors with a view to identifying sharing constraints that\ud would give rise to an acceptable sharing environment

Topics: TK
OAI identifier: oai:wrap.warwick.ac.uk:4118

Suggested articles

Preview

Citations

  1. (1999). A Comparison of Required and Provisional epfd Limits for a Ku-band GSO FSS Network with Large Earth Station Antennas',
  2. (1998). A Preliminary Analysis on GSO Interference Mitigation Technique for NGSO Satellites ',
  3. (1999). An Analysis of Potential Techniques Proposed to Facilitate Sharing Between
  4. (1999). An Analysis of the Interference into FS Receivers from NGSO FSS Satellites Operating in the 18.8-19.3 GHz band',
  5. (1999). Analysis by Simulation and Measurement of the Short term Interference Effects from NGSO Satellites into GSO Earth Stations',
  6. (1999). Analysis of Sample Earth Station Radiation Patterns of Small Receive only Antennas in the Context of Suitable Reference Patterns for Use
  7. (1999). Analysis of Site Shielding as a Possible Mitigation Technique to Facilitate FSS and FS Coexistence in the 18.8-19.3 GHz Band',
  8. (1999). Analysis of the Impact of the epfd Limits on the Potential for Synchronisation Losses in FSS Transmissions in the 11-12/13-14 GHz Bands'
  9. (2000). Analytical Method to Calculate Short-term Visibility and Interference Statistics for Nongeostationary Satellite Orbit Satellites as Seen from a Point on the Earth's Surface',
  10. (1999). Assessing the Potential Benefits of Having Two
  11. (1999). Assumed Level of Synchronisation Loss for the Development of epfddo. Limits',
  12. (1997). Availability Objective for Radio Relay Systems Over a Hypothetical Reference Circuit and a Hypothetical Reference Digital Path',
  13. (1999). Consideration of Sensitive FS Links in the Establishment of FS Protection Criteria in the 18.8-19.3 GHz band',
  14. (1998). Coordination Area for Earth Stations Operating with NGSO Space Stations in the Fixed Satellite Service
  15. (2000). Current Status of Sharing Studies Between FSS User Terminals and FS Stations in the 17.7-19.7 GHz Band',
  16. (2000). Current Status of Working Party 4-9S Sharing Studies Between FSS User Terminals and FS Stations in the Bands 17.7-19.7 GHz and 27.5-29.5 GHz and European Regulatory Framework for the Shared Use of Both Bands',
  17. (1999). Derivation of Alternative epfd Limits in the 10-12 GHz Band',
  18. (1999). Derivation of Number of NGSO FSS Networks to be Used in Sharing Studies',
  19. (1993). Determination of the Coordination Area for Earth Stations Operating with Nongeostationary Spacecraft in Bands Shared with Terrestrial Services', doi
  20. (1993). Determination of the Coordination Area of an Earth Station Operating with a Geostationary Space Station and Using the Same Frequency Band as a System in a Terrestrial Service',
  21. (1997). Determination of the Criteria to Protect Fixed Service Receivers from the Emissions of Space Stations Operating in Nongeostationary Orbits in Shared Frequency Bands',
  22. Determination of the Number of NGSO Systems to be used
  23. (1999). Development of epfd Limits for NGSO Systems Operating in the 10.7-12.75 GHz Band',
  24. (1996). Downlink PFD Limits for NGSO Fixed Satellite Service Systems in the 18.9-19.3 GHz Band',
  25. (2000). epfd Coordination Thresholds for the Protection of GSO Earth Stations with very large Antennas Against Interference From NGSO FSS Systems',
  26. (1997). Error Performance and Availability Objectives for the Local Grade Portion at Each End of an Integrated Services Digital Network Connection at a Bit Rate Below the Primary Rate Utilising Digital Radio Relay Systems',
  27. (1997). Error Performance Objectives for Constant Bit Rate Digital Path at or Above the Primary Rate Carried by Digital Radio Relay Systems which may Form Part of the International Portion of a 27 500 km Hypothetical Reference Path',
  28. (1997). Error Performance Objectives for Constant Bit Rate Digital Paths at or Above the Primary Rate Carried by Digital Radio Relay Systems which may Form Part or All of the National Portion of a 27 500 km Hypothetical Reference Path',
  29. (2000). Error Performance Objectives for Real Digital Radio Links Used in the National Portion of a 27500 km Hypothetical Reference Path at or Above the Primary Rate',
  30. (1997). Error Performance Objectives for Real Digital Radio Relay Links Forming Part of the High Grade Portion of International Digital Connections at a Bit Rate Below the Primary Rate within an Integrated Services Digital Network',
  31. (1997). Error Performance Objectives of the Hypothetical Reference Digital Path for Radio Relay Systems Providing Connections at a Bit Rate Below the Primary Rate and Forming Part or All of the High Grade Portion of an Integrated Services Digital Network',
  32. (1996). Error Performance of an International Digital Connection Forming Part of an Integrated Services Digital Network',
  33. (1998). Evaluation of PFD Levels Required to Protect Fixed Service Receivers from Interference from satellites of NGSO FSS Networks Operating in the 18.8-19.3 GHz Band',
  34. (1999). Evaluation of Power Flux Density Limits Required to Protect the Fixed Service Operating in the 17.7-19.3 GHz Band from NGSO FSS Interference with Different Constellation Sizes',
  35. (1996). Frequency Coordination Between NGSO FSS Earth Stations and Fixed Service Stations',
  36. (1963). Hypothetical Reference Circuit for Radio Relay Systems for Telephony Using Frequency Division Multiplex with a Capacity of 12 to 60 Telephone Channels',
  37. (1963). Hypothetical Reference Circuit for Radio Relay Systems for Telephony Using Frequency Division Multiplex with a Capacity of more than 60 Telephone Channels',
  38. (1982). Hypothetical Reference Circuit for Systems Using Analogue Transmission in the Fixed Satellite Service',
  39. (1966). Hypothetical Reference Circuit for Transhorizon Radio Relay Systems for Telephony Using Frequency Division Multiplex',
  40. (1984). Hypothetical Reference Circuits for Analogue Systems',
  41. (2000). Identification of High Density Fixed Satellite Service Bands Above 17.3 GHz',
  42. (1999). Impact of Loss of Synchronisation on GSO Transmissions',
  43. (1999). Impact of Multiple NGSO Systems on a GSO System',
  44. (1998). Impact of the Need to Avoid Main Beam to Main Beam Interference Between NGSO FSS Systems',
  45. (1999). Interference Between Multiple NGSO FSS Systems Operating in the 10-14 GHz Frequency band',
  46. (2000). Interference Criteria to Protect the Fixed Service from Time Varying Aggregate Interference from Other Services Sharing the 10.7-12.75 GHz Band on a Co-primary Basis',
  47. (2000). Interference Criteria to Protect the Fixed Service from Time Varying Aggregate Interference from Other Services Sharing the 17.7-19.3 GHz Band on a Co-primary Basis',
  48. (1999). Lecturing Notes, Digital Modulation Schemes',
  49. (1999). Link Budgets and Protection Criteria for a GSO FSS Network with Large Earth Station Antennas',
  50. (1997). Maximum Allowable Values of Interference From the Fixed Satellite Service into Terrestrial Radio Relay Systems which may Form Part of an ISDN and Share the Same Frequency Band Below 15 GHz',
  51. (1997). Maximum Allowable Values of Interference in a Telephone Channel of an Analogue Angle Modulated Radio Relay System Sharing the Same Frequency Bands as Systems in the Fixed Satellite Service',
  52. (1999). Measured Direct to Home Antenna Diagrams for Evaluation of NGSO Interference into GSO Networks',
  53. (1999). Measurement Results on the Synchronisation Losses Caused by Short Term Interference into GSO Earth Station Demodulators',
  54. (1999). Methodologies for Determination of the Coordination Area for Earth Stations Operating to NGSO FSS Space Stations',
  55. (1999). Methodology Used in the Derivation of Single Entry epfd Limits from an Aggregate',
  56. (2000). Methods to Enhance Sharing Between NGSO FSS Systems in the Frequency Bands Between 10-30 GHz',
  57. (1999). Minimum Achievable epfd for Some NGSO Systems During In-line Events',
  58. (1998). NGSO Interference into GSO Earth Stations in the Ku Band Fixed Satellite Service',
  59. (1982). Noise in Real Circuits of Multi Channel Transhorizon FM Radio Relay Systems of Less than 2500 km',
  60. (1996). Performance Specification for Digital Multipoint Video Distribution Systems (MVDS) Transmitters and Transmit Antennas Operating in the Frequency Band 40.5-42.5 GHz', UK Radiocommunications Agency,
  61. (1999). Propagation Data and Prediction Methods Required for the Design of Terrestrial Broadband Millimetric Radio Access Systems Operating in a Frequency Range of About 20-50 GHz',
  62. (1999). Propagation Data Required for the Evaluation of Coordination Distances in the Frequency Range 100 MHz to 105 GHz',
  63. (1995). Protection Criteria for Digital Radio Relay Systems to Ensure Compatibility with Radar Systems in the Radiodetermination Service',
  64. (1999). Protection Criteria for GSO Network with Large Earth Station Antennas in the band 12.5-12.75 GHz',
  65. (1999). Protection of Very Large Antennas', ITU WP-4A, Document TEMP/137,
  66. (1999). Recommended Antenna Patterns for NGSO Satellite Multiple Beam Antennas Operating in the Fixed Satellite Service Below 30 GHz',
  67. (2000). Reference FSS Earth Station Radiation Patterns for Use in Interference Assessment Involving NGSO Satellite in Frequency Bands Between 10.7 GHz and 30 GHz',
  68. (1999). Reference GSO Receiving Earth Station Radiation Patterns for Use in Interference Assessment from NGSO Satellites',
  69. Regulations, Appendices, `Radiation Patterns for Earth Station Antennae to be Used When They are not Published (Appendix 28/29)',
  70. (1998). Regulations, Articles, `Procedure for Effecting Coordination with or Obtaining Agreement of Other Administrations (Article S9.12)',
  71. (1998). Regulations, Resolutions and Recommendations, `Power Flux Density Limits Applicable to Nongeostationary Fixed satellite Service Systems for Protection of Terrestrial Services in the Bands 10.7-12.75 GHz and 17.7-19.3 GHz (Resolution 131)',
  72. (1996). Regulations, Resolutions and Recommendations, `Use of the Bands 18.8-19.3 GHz and 28.6-29.1 GHz by Nongeostationary Fixed Satellite Service Systems (Resolution 118)',
  73. (1999). Report on ACTS Project 215: Cellular Radio Access for Broadband Services (CRABS), European Commission,
  74. (1999). Results of Further Measurements of Worst Case NGSO Interference Peaks on Demodulators Used for High Data Rate Carriers
  75. (1997). Satellite Antenna Radiation Pattern for Use as a Design Objective in the Fixed Satellite Service Employing Geostationary Satellites',
  76. (1998). Sharing Between NGSO FSS Satellites and FS in the 10-12 GHz Frequency Range',
  77. (1998). Simulation of FS Systems Subject to Interference from NGSO FSS Systems',
  78. (1998). Simulation Results Giving the Minimum Required Separation Angle Between NGSO Satellites to Enable Co-directional Co-frequency Sharing Between
  79. (1999). Simulation Results on Sharing Between Multiple Inhomogeneous
  80. (1998). Study of the Sharing of the Same Frequency Band by Several NGSO FSS Systems',
  81. (1998). Study to Evaluate Sharing Between
  82. (1998). System Characteristics of a GSO FSS Network with large Earth Station Antennas and epfd Limits',
  83. (2000). The Feasibility of Proposed Mitigation Techniques Intended to Facilitate Sharing Between FSS User Terminals and FS Stations in the 27.5-29.5 GHz Band',
  84. (1993). The Impact of doi
  85. (2000). Thresholds for Coordination of Frequency Assignments Between Systems
  86. (1998). Typical Characteristics and Short Term Interference Criteria for UK FS Stations in the 17.7-19.7 GHz Band',
  87. (1999). Use of the Band 28.6-29.1 GHz by the FS and NGSO FSS in the Earth-tospace Direction',

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.