# Map of Wireless Fading Channel Modeling and Estimation H - N [Tx](Transmitter.md), M [Rx](receiver.md) - NxM paths - H is an nxm matrix. Estimation is finding the value of h Modeling is defining the h. How to define H? Modeling There are people in the way. Start with a scalar h (SISO) 1. [Path loss](Path%20loss.md) 2. [Shadowing](Shadowing.md) 3. [Multipath Fading](Multipath%20Fading.md) Omnidirectional antenna