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EEE-534 Wireless Communications

EEE-534 Wireless Communications. Mustafa Ozmen 20603095. Outline. Introduction System Model and Performance Analysis Scalar Quantization Simulation Result Discussion of Paper. Introduction. Bit error performance for EGC and optimal precoders

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EEE-534 Wireless Communications

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  1. EEE-534Wireless Communications Mustafa Ozmen 20603095

  2. Outline • Introduction • System Model and Performance Analysis • Scalar Quantization • Simulation Result • Discussion of Paper

  3. Introduction • Bit error performance for EGC and optimal precoders • Bit error performance effect of scalar quantization • EGC and Grassmannian precoding comparison

  4. System Model and Performance Analysis

  5. System Model and Performance Analysis

  6. System Model and Performance Analysis

  7. System Model and Performance Analysis Figure 1: Average SNR of MRC and EGC precoders

  8. Scalar Quantization

  9. Scalar Quantization

  10. Scalar Quantization

  11. Scalar Quantization

  12. Scalar Quantization Figure 2: The SNR gap of between EGC precoders with and without quantization

  13. Scalar Quantization Figure 3: The SNR reduction due to quantization for θ1=0 and θ1=ϕ1.

  14. Simulation Result Figure 4: Bit error performance comparison of EGC precoder and optimal precoder (without quantization).

  15. Simulation Result Figure 5: Bit error performance comparisons without quantization and with quantization.

  16. Simulation Result Figure 6: Bit error performance comparisons for different precoding scenarios

  17. Discussion of Paper • Strong points: In the paper theoretical results are found and with simulation results they are verified. Author, teaches the topic well and this makes the paper easier to understand even if reader has not enough background. • Weak points: All channel coefficients have same unit and variances. This is a bad generalization if the transmit antenna numbers are increased.

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