Performance Evaluation of MIMO Techniques With an SDR-Based Prototype
summary
Claims that combining MIMO diversity and spatial multiplexing on open‑source SDRs increases reliability and throughput and demonstrates it with simulations and experiments. Uses USRP N210 with GNU Radio / “new radio” code contributions from Luca Schmidt, implements Alamouti / MRC / selection combining and zero forcing and MMSE decoders, measures BER and realtime throughput, and finds MMSE outperforms zero forcing (they converge at high SNR). Built prototype works but is limited by hardware (N210 yields ~5 MS/s vs advertised 25 MS/s).
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chapters (9)
- 0:00Start
- 3:59Why Multiple Input Multiple Output
- 7:41Difference between 3g and 4g Introduction of Multi-Input Multiple Output for 4g
- 9:48Diversity Technique and Special Multiplexing
- 10:51Multiple Informative Output
- 13:58Selection Combining and Maximum Ratio Combining
- 17:04Simulation
- 19:41Using Multiple Antenna Configuration
- 21:32Transmit Antenna Selection
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