MIMO 2x2

2 Tx 2 Rx, Spatial Multiplexing or Diversity

Real-World Applications

Home WiFi routers with 2/4 antennas, 4G phones. Using multipath reflections, turning one path into two paths, doubling the rate! Not anti-interference, but **using** interference (reflection paths) to transmit more data.

Experiment Steps

Spatial Multiplexing: Double the rate
Spatial Diversity: Improved reliability

Simulation Experiment

MIMO Channel Visualization(Spatial Multiplexing & Diversity)

Transmitter (Tx)

Receiver (Rx)

Channel Capacity

0.00 bps/Hz

Effective Streams

0 / 2

Singular Value Distribution (Channel Matrix)

✅ Full Rank

Antenna Correlation Impact:Determined by antenna spacing (d) and scattering environment.

Low Correlation (d > λ/2, rich multipath): Uniform singular value distribution, supports parallel multi-stream transmission (high multiplexing gain).
High Correlation (d < λ/2, LOS): Energy concentrates in first singular value, reduced spatial DoF (degrades to single stream).

Parameters(Real-time)

Mode (0=Diversity, 1=Multiplexing)1

SNR15 dB

Antenna Correlation0.3

Functions: models.channel.generateMIMOChannel, models.channel.calculateMIMOCapacity

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