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Filter input signal through MIMO multipath fading channel

**Library:**Communications System Toolbox / Channels

The MIMO Fading Channel block filters an input signal using a multi-input/multi-output (MIMO) multipath fading channel. This block models both Rayleigh and Rician fading and employs the Kronecker model for modeling the spatial correlation between the links. For processing details, see the Algorithms section.

The availability and dimensions of input and output port signals depends on:

The Antenna selection parameter setting on the

**Main**tabThe Initial time source parameter setting on the

**Realization**tabThe Output channel path gains selection on the

**Realization**tab

Antenna Selection Parameter |
Signal Input (in) |
Transmit Selection Input (Tx Sel) |
Receive Selection Input (Rx Sel) |
Initial Time Offset Input (Init Time) |
Signal Output (Out1) |
Optional Channel Gain Output (Gain) |
---|---|---|---|---|---|---|

`Off` | N_{S}-by-N_{T} | N/A | N/A | nonnegative scalar | N_{S}-by-N_{R} | N_{S}-by-N_{P}-by-N_{T}-by-N_{R} |

`Tx` | N_{S}-by-N_{ST} | 1-by-N_{T} | N/A | N_{S}-by-N_{R} | ||

`Rx` | N_{S}-by-N_{T} | N/A | 1-by-N_{R} | N_{S}-by-N_{SR} | ||

`Tx and Rx` | N_{S}-by-N_{ST} | 1-by-N_{T} | 1-by-N_{R} | N_{S}-by-N_{SR} |

*N*_{S}represents the number of samples in the input signal.*N*_{T}represents the number of transmit antennas, as determined by:Transmit spatial correlation when Specify spatial correlation is set to

`Separate Tx Rx`

Number of transmit antennas when Specify spatial correlation is set to

`None`

or`Combined`

*N*_{R}represents the number of receive antennas, as determined by:Receive spatial correlation when Specify spatial correlation is set to

`Separate Tx Rx`

Number of receive antennas when Specify spatial correlation is set to

`None`

Combined spatial correlation and Number of transmit antennas when Specify spatial correlation is set to

`Combined`

*N*_{P}represents the number of channel paths, as determined by the Discrete path delays (s) or Average path gains (dB).*N*_{ST}represents the number of selected transmit antennas, as determined by the number of elements set to`1`

in the vector provided to the Tx Sel input port.*N*_{SR}represents the number of selected receive antennas, as determined by the number of elements set to`1`

in the vector provided to the Rx Sel input port.

[1] Oestges, C., and B. Clerckx. *MIMO Wireless Communications: From Real-World
Propagation to Space-Time Code Design*. Academic Press, 2007.

[2] Correira, L. M. *Mobile Broadband Multimedia Networks: Techniques, Models
and Tools for 4G*. Academic Press, 2006.

[3] Kermoal, J. P., L. Schumacher, K. I. Pedersen, P. E. Mogensen, and F. Frederiksen. "A
stochastic MIMO radio channel model with experimental validation." *IEEE Journal on
Selected Areas of Communications*. Vol. 20, Number 6, 2002, pp.
1211–1226.

[4] Jeruchim, M., P. Balaban, and K. S. Shanmugan. *Simulation of Communication
Systems*. Second Edition. New York: Kluwer Academic/Plenum, 2000.

[5] Pätzold, Matthias, Cheng-Xiang Wang, and Bjorn Olav Hogstand. "Two New
Sum-of-Sinusoids-Based Methods for the Efficient Generation of Multiple Uncorrelated Rayleigh
Fading Waveforms." *IEEE Transactions on Wireless Communications*. Vol. 8,
Number 6, 2009, pp. 3122–3131.

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