Both satellite and optical fiber are very suitable for long distance communication, but they have different advantages and disadvantages. The transmission media in satellite networks are wireless media that are very susceptible to noise and even wind and rain affect the data being transmitted and destroy the bits. But in optical fiber, because the frequency of light is higher than all frequency spectrums, it is not noisy, and we can be sure that the output data is largely the same as our input data. Satellite or optical fiber? One of the prominent features of satellite is its broadcast, which is considered an advantage in some uses and a disadvantage in others. This feature comes in handy when we want to cover a geographical area completely with just one satellite link, because with optical fiber we have to create an independent link for each client, which is very expensive. But when the security of the transmitted data is important to us, it does not seem reasonable to use a satellite link, and in these cases, optical fiber should be used.
As you know, optical fiber is made of glass and is very fragile! This causes us to be unable to use optical fiber in places that do not have a good geographical location and the land is high and low, or there are many faults in it, where there is a possibility of an earthquake and breaking and cutting the fiber. and we have to use satellite to establish long-distance communication. In addition, satellite is preferable to terrestrial cabling in terms of installation speed. For example, imagine a time when a natural disaster has occurred and we need to establish emergency contact with other points as quickly as possible, which is usually the fastest possible solution by launching a satellite.
Satellite or optical fiber? The bandwidth of optical fiber is much higher than that of satellite, maybe one string of it has more bandwidth than all the launched satellites, but all this bandwidth is not available to a single user and it is mostly used in long distance communication, while satellite without No intermediary provides much bandwidth to individual users.
