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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
Running a simulation
Once the simulation scenario has been completely defined (in other words, once the user defined the victim link and at least one interfering link) and the simulation control parameters were checked, the user may proceed with performing the actual simulation, i.e. the generation of simulated scenario events.
The simulation is started when the user clicks on the Start button of SEAMCAT toolbar. The simulation starts and all other commands/buttons are meanwhile disabled, except the Stop button:
Before the event generation starts, SEAMCAT will automatically perform the consistency check of the scenario parameters. See also here for interpretation of possible warning messages.
The simulation will run until the termination criteria set in simulation control had been fulfilled, i.e. either the prescribed number of trials had been performed or the time limit had been reached. Besides, the user can stop the simulation at any time (after completion of a given snapshot) by pressing the Stop button.
The progress bar at the bottom of the screen reflects the proportion of carried out events with respect to overall number of scheduled events.
During the event generation all involved transceivers (IT, WR, VR and WT) are plotted in graphical display window placed on the simulation status tab page.
When simulating CDMA systems, user will have access to additional display window "CDMA System details", which will become active after completion of the simulation, allowing the user to expect the internal details of CDMA cluster based on data from the last snapshot.
After performing event generation the user is then able to:
- examine event generation results and interference calculation results
- perform interference calculation
- generate a report of the simulation
When the user would like to modify the scenario and repeat the simulation, it is done by repeating the whole process, i.e. opening the relevant scenario dialogue windows, updating the required parameters as necessary and re-launching the simulation with the Start button.
Attachments
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simulation_run.PNG
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added by cp 4 years ago.
