Wednesday, August 31, 2011

What are fast fading and slow fading?


Fast fading is also called multi-path fading, as a result of multi-path propagation.  When multi-path signals arriving at a UE, the constructive and destructive phases create a variation in signal strength.
Slow fading is also called shadowing.  When a UE moves away from a cell the signal strength drops down slowly.
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