![]() ![]() In this faded signal, channel response of signal has constant gain/linear phase over bandwidth (BW).Signal undergoes flat fading if following conditions are met.They are also called as narroband channels as signal BW is narrow compare to channel BW. As gain of the signal varies over time, flat fading channels are known asĪmplitude varying channels.The figure-1 depicts time domain and frequency domain flat fading channel characteristics.Spectral characteristics of flat fading impaired signal are preserved over time.Channel response in flat fading impaired signal has flat gain/linear phase over bandwidth (BW).Let us understand flat fading and frequency selective fading. Refer article on types of fading and fading basics>. The channel between transmitter and receiver can be time varying or fixed.įading refers to variation in received signal strength with respect to time due toĬhannel seen by the transmitted signal over the path of travel.Ĭhannel fading occurs due to various factors which include atmospheric (rain, lightening) and physical (movement of Transmitter and Wireless system consists of transmitter, receiver and channel. This page compares Flat Fading vs Frequency Selective Fading in wireless communication and mentionsĭifference between Flat Fading and Frequency Selective Fading. Flat Fading vs Frequency Selective Fading | difference between Flat Fading and Frequency Selective Fading ![]()
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