MIMO Capacity Calculator
Calculate theoretical capacity and performance gains for MIMO wireless systems.
MIMO Configurations
| Config | Type | Max Streams | Use Case |
|---|---|---|---|
| 1x1 | SISO | 1 | Basic/legacy |
| 1x2 | SIMO | 1 | Receive diversity |
| 2x1 | MISO | 1 | Transmit diversity |
| 2x2 | MIMO | 2 | WiFi, LTE basic |
| 4x4 | MIMO | 4 | LTE-A, WiFi 5/6 |
| 8x8 | MIMO | 8 | LTE-A Pro |
| 64x4 | Massive | 4 | 5G NR |
MIMO Theory
MIMO Capacity Formula
C = B * sum(log2(1 + SNR_i))
For i = 1 to min(Nt, Nr) independent streams
For i = 1 to min(Nt, Nr) independent streams
In ideal conditions, MIMO capacity grows linearly with min(Nt, Nr). Each spatial stream adds to the total capacity, enabling data rates far beyond SISO limits.
Key Benefits
- Spatial Multiplexing: Multiple data streams (high rate)
- Transmit Diversity: Redundant paths (reliability)
- Beamforming: Focused energy (range/capacity)
- MU-MIMO: Serve multiple users simultaneously