What is difference between terrestrial and satellite communication?
In a satellite link delay from earth to satellite to earth is about 240ms while in terrestrial link it will be far less. But transmission cost in a satellite system is independent of the distance within the area of coverage of the satellite antenna, while in terrestrial system it varies based on the distance.
How are satellite communication and terrestrial used in wireless communication?
A communication satellite is a microwave repeater station in a space that is used for telecommunication, radio and television signals. A communication satellite processes the data coming from one earth station and it converts the data into another form and send it to the second earth station.
How are terrestrial communication used?
We listen to the radio in our cars, watch free-to-air television programmes at home, travel safely in cities and around the globe, staying connected, thanks to terrestrial wireless communication systems. They include advanced mobile broadband, intelligent transport systems and IoT devices.
What are the advantages of satellite communication over terrestrial?
As compared to optical fiber cable where the signal quality changes with the distance travelled by signal through the cable, satellite communication has an advantage that signal quality is independent of distance as long as the two stations fall within the same geographic coverage areas.
What is terrestrial or cable?
Cable: a term used to describe the video delivery via coaxial cable connection. Digital terrestrial: video delivery via radio waves received via a digital set-top box, TV gateway or an integrated tuner included with a television set.
What is the range of terrestrial communication?
Terrestrial television stations broadcast on television channels with frequencies between about 52 and 600 MHz in the VHF and UHF bands.
What are the uses of satellite communication?
Satellites provide in-flight phone communications on airplanes, and are often the main conduit of voice communication for rural areas and areas where phone lines are damaged after a disaster. Satellites also provide the primary timing source for cell phones and pagers.
How many types of satellite communication are there?
There are three types of communication services that satellites provide: telecommunications, broadcasting, and data communications.
What is terrestrial method?
Terrestrial television is a type of television broadcasting in which the television signal is transmitted by radio waves from the terrestrial (Earth-based) transmitter of a television station to a TV receiver having an antenna. Terrestrial television was the first technology used for television broadcasting.
What are terrestrial services?
The BR International Frequency Information Circular (Terrestrial Services) (BR IFIC) is a service document that contains information on the frequency assignments/allotments submitted by Administrations to the Radiocommunication Bureau. It is published in DVD-ROM format, published once every two weeks.
What are the advantages of terrestrial interface?
A terrestrial communication system, facilitating audio, video, data, and any other type of communication within a local geographical area, and with an extremely large number of communication channels being made available simultaneously at a very low cost.
What are advantages and drawbacks of satellite communication over terrestrial communication?
Satellite is mainly wide-area broadcast media as transmitter antenna may be designed to provide signals to service areas as small as a city or as large as a country. The satellite costs are independent of distance whereas the terrestrial network costs time cost is proportional to the distance.
What is a terrestrial communication system?
A terrestrial communication system according to claim 1, characterized in, that at least one local terrestrial satellite (LTS) is arranged having cable connection to a data communication network, a public or private telephone network or cable network. 8.
What is a typical satellite communications system?
A typical satellite communications system is shown in Figure 1.3. In the figure, the terrestrial network can correspond to the voice, data, or video signal from a public switching telephone network (PSTN) or from a cellular network.
What is hybrid satellite/terrestrial system?
Hybrid satellite/terrestrial systems where both the terrestrial network and the satellite network have a clear role in providing the service to end users have been proposed in Refs. [18, 19 ]. The idea is to use the satellite to assist the terrestrial secondary network.
What is the difference between satellite transmission cost and terrestrial transmission?
But transmission cost in a satellite system is independent of the distance within the area of coverage of the satellite antenna, while in terrestrial system it varies based on the distance.