Tutorial

This document will walk you step-by-step through the creation of a simulation file as a tutorial exercise. In doing so you will get an idea of how Visualyse Interplanetary works and how it can be used to model a wide variety of radio communication scenarios.

This document should be read together with rest of the Visualyse Interplanetary document set, including:

  • User Guide
  • Technical Annex Document
  • Demonstration Files Document

Visualyse Interplanetary can be used to analyse a very wide range of scenarios – as can be seen by the long list of example files in the Demonstration Document. These can include studies involving a wide range of different types of stations and services, including broadcasting, mobile, fixed, GSO satellite, non-GSO satellite, aircraft, ships, etc.

In the example files, we try to cover many of the different types of service and station in at least one of the simulations. In this document, we have just the one scenario, so we have chosen one that includes both satellite and terrestrial services.

It is based upon one of the study topics that were discussed at the World Radiocommunications Conference (WRC) in November 2007, namely Agenda Item 1.4, which was concerned with finding additional spectrum for the development of terrestrial mobile broadband services such as 3G, LTE, and WiMAX. Various predictions were given, based on several scenarios for the development of the markets for mobile service - up to 1 GHz requirement was suggested in some scenarios.

One possible frequency band that was considered as potentially feasible was the 800 MHz currently used by the satellite community between 3.4 - 4.2 GHz. This band is particularly suitable for terrestrial cellular systems and is in a ‘sweet spot’ as far as propagation and capacity are concerned. However, it is a crucial band for satellite networks in many countries around the world.

In this document, we will look at the implications of deploying a WiMAX network, co-frequency, around an existing Fixed Satellite Service (FSS) earth station.

Important Note

This document is based upon example parameters and is not derived from any actual or proposed systems known by Transfinite. While the numbers used are representative, they and the results generated cannot be guaranteed.

Suggestion

We have located the stations to be around Sydney in Australia – the simulation should still “work” if moved to other places if that would be more convenient for you.