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SEAMCAT Manual Table of contents
- About this Wiki
- About the STG (SEAMCAT Technical Group)
- About the source code
- Frequently Asked Questions
- How to register on TracTool?
- Tutorial videos
- Known Issues
- Disclaimer
Introduction
Main structural elements of SEAMCAT
Data elements
- SEAMCAT Data types
- Function entry dialog window
- Emissions mask dialog window
- Random distribution dialog window
- Antenna pattern dialog window
- Signal display window
- How to generate a truncated distribution?
Simulation workspace
Creating SEAMCAT scenario
- Simulation scenario and its programming
- Victim link dialog window
- Interfering link dialog window
- CDMA system dialog window
- Sharing and importing scenarios
CDMA module
- CDMA Module Overview
- CDMA Simulation Engine (CDMAE)
- CDMA system dialog window
- CDMA Link level data
- CDMA simulation algorithm
- CDMA input parameters
- CDMA output results
OFDMA module
Cognitive Radio System module
Performing a simulation
- Simulation control settings
- Running a simulation (event generation)
- Calculating probability of interference
Simulation results...
- Producing simulation report
- Logging options and Remote server
- Saving results in .csv format
Library of scenario elements
- SEAMCAT Library
- Antenna elements
- Receiver elements
- Transmitter elements
- CDMA Link level data
- Propagation model plugins
- Post processing plugins
- Setting up environment for programming plugins
- Exporting and importing a library
Special functions
Detailed algorithms
- Calculation of wanted signal (dRSS)
- Calculation of unwanted and blocking signals (iRSS)
- Calculation of overloading (iRSS)
- Calculation of intermodulation signal (iRSS)
- Interference calculation (non-CDMA/non-OFDMA)
- CDMA simulation algorithm
- OFDMA simulation algorithm
Elementary calculations
- Relative location of VR and IT (Simulation Radius)
- Relative location of transceivers within a link
- Calculation of azimuths and elevations (within a link)
- Calculation of azimuths and elevations (IT-VR path)
- Calculation of antenna gains
- Calculation of VR blocking attenuation
- Calculation of the coverage radius of a transmitter
- Calculation of IT power control gain
- Calculation of IT (unwanted) emissions
Propagation models
- Guide to propagation models in SEAMCAT
- How to test propagation model?
- ITU-R P.1546 model
- Extended Hata and Hata-SRD models
- Spherical diffraction model
- Free Space Loss model
- User-defined model (Propagation plug-in)
- JTG5-6 propagation plug-in
- SE42 propagation plug-in
- Longley Rice propagation plug-in
- Winner propagation plug-in
- IEEE 802.11 Model C (modified) plug-in
Reference annexes
- Setting antenna height, pointing azimuth and elevation
- Setting path azimuths in links
- Setting blocking attenuation of victim receiver
- Scenario consistency check
- Error and warning messages
Example Scenarios
Release to be tested by STG
Sharing Scenarios
When SEAMCAT-3 workspace is saved into a file with 'sws' extension, it includes in itself also all scenario information. Therefore any SEAMCAT-3 workspace file by itself constitutes the shareable object, i.e. copies of the workspace file may be shared between SEAMCAT users wishing to discuss a particular scenario. This approach of saving workspaces as separate files is different from SEAMCAT-2 where all workspaces were kept as a part of an internal database, and if user wanted to share scenario with others, this had to be done via 'Scenario export' function, which was saving scenario information into a stand-alone 'txt' file.
Note that when saving a workspace, the user is prompted by the program to ask if also the results should be saved. Since the results information could be sometimes very extensive, saving results could increase the size of 'sws' file significantly. The size of 'sws' file could be reduced to the minimum (ca 20 KB) by choosing not to save simulation results.
Note that it is also possible in SEAMCAT-3 to re-create a scenario based on the scenario file, which was exported from SEAMCAT-2. This may be done through the menu option ?File/Legacy? Import/Import? Legacy Scenario?, then in file selection window browse to the 'txt' file containing scenario exported from SEAMCAT-2. Upon completion of import, SEAMCAT-3 will notify user if any problems were encountered, e.g. specifying the line number, where data transfer action was not possible. However it is important that after importing the SEAMCAT-2 scenario, the user reviews both victim and interfering links to assure that the imported scenario is loaded correctly.
