during my day to day I could appreciate how the intensity of the wifi networks are altered because of the existence of other networks, here is my question because I want to know if. Is there any kind of interference between wireless networks?
Interference occurs whenever two rf signal with the same frequency exist at the same time in the same space. In fact the interference is an important issue in wireless communications. The major cause is that the electromagnetic waves are spreading to fill the space in which they propagate. Therefore there are strict frequency allocation and division among the different services. There are licensed bands and unlicensed bands such as the ISM bands. If your system is working in ISM band it will be more subjected to interference.
There is also activities which may produce electromagnetic radiation such as power switching stations for the underground trains.
Nowadays there is the cognitive radio which has the capability to sense the existing active frequencies and choose a vacancy to transmit its signals.
Radio sensing is becoming an important task in wireless communication to detect the radio activities in a specific location.
Best wishes
The interference occurs in case of existing two wireless networks or more using the same Frequency band such as WSN 2.4GHz with wifi 2.4GHz .
Yes, very much so, as Zeyad said above. Search under such topics as "TV white space networks," for example, or interference between LTE-U and WiFi.
My little personal anecdote. My wife and I have been twice to a particular restaurant, where each time our car's key fob did not work. The first time, the car was new, I was worried something was wrong with the fob. After dinner we left, and everything worked fine again, for a couple of years. Months ago, we went back to that same restaurant, and again the key fob did not work!
This time I looked around carefully. There was a big cluster of microwave towers right next door! Interfering, evidently, with the "personal area network," meaning range approximately 10 meters, of our car's key fob. But I looked around the parking lot, and other cars seemed to work okay.
Not sure why what looks like microwave towers should affect a key fob that operates at 315 MHz (very low part of the UHF band), but I'm convinced now this was RF interference. Maybe heterodyning is involved, with so many antenna so close together.
Automotive keyless entry systems typically operate at either 315MHz or 433MHz.
Interference occurs whenever two rf signal with the same frequency exist at the same time in the same space. In fact the interference is an important issue in wireless communications. The major cause is that the electromagnetic waves are spreading to fill the space in which they propagate. Therefore there are strict frequency allocation and division among the different services. There are licensed bands and unlicensed bands such as the ISM bands. If your system is working in ISM band it will be more subjected to interference.
There is also activities which may produce electromagnetic radiation such as power switching stations for the underground trains.
Nowadays there is the cognitive radio which has the capability to sense the existing active frequencies and choose a vacancy to transmit its signals.
Radio sensing is becoming an important task in wireless communication to detect the radio activities in a specific location.
Best wishes
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