Wireless communication signals, radio, wifi, cellular phone, etc., are modulated

Question

Wireless communication signals, radio, wifi, cellular phone, etc., are modulated. This means that the signal is imposed onto a higher frequency carrier signal and transmitted. The receiver demodulates the signal such that the received signal is as close to the original as possible. What types of components would you need to create a wireless communication system? What would be the critical parameters of such a system? Wireless communication signals, radio, wifi, cellular phone, etc., are modulated. This means that the signal is imposed onto a higher frequency carrier signal and transmitted. The receiver demodulates the signal such that the received signal is as close to the original as possible. What types of components would you need to create a wireless communication system? What would be the critical parameters of such a system?

Explanation / Answer

Ans) The components that would make a wireless communication system are 1) source 2) Transmitter 3) Reciever 4) Recipient.

The critical Parameters of such a system include

1) Strength of the Transmitted signal.

The strength or the intensity of the received signal varies due to change in the propagation path and also due to obstructions such as buildings and trees.The strength of the signal varies also due to distance.

2) Due to constructive and Destructive interference of the multiple signals transmitted between Transmitters and Recievers may lose some data.

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