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MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho | Jaekwon Kim Won Young Yang | Chung G. Kang Chapter 11. Signal Detection for Spatially Multiplexed.

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Presentation on theme: "MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho | Jaekwon Kim Won Young Yang | Chung G. Kang Chapter 11. Signal Detection for Spatially Multiplexed."— Presentation transcript:

1 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho | Jaekwon Kim Won Young Yang | Chung G. Kang Chapter 11. Signal Detection for Spatially Multiplexed MIMO Systems

2 Page  2 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd Chapter 11. Signal Detection for Spatially Multiplexed MIMO Systems  11.1 LINEAR SIGNAL DETECTION - 11.1.1 ZF Signal Detection - 11.1.2 MMSE Signal Detection  11.2 OSIC SIGNAL DETECTION  11.3 ML SIGNAL DETECTION  11.4 SPHERE DECODING METHOD  11.5 QRM-MLD METHOD  11.6 LATTICE REDUCTION-AIDED DETECTION - 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm - 11.6.2 Application of Lattice Reduction

3 Page  3 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd Chapter 11. Signal Detection for Spatially Multiplexed MIMO System  11.7 SOFT DECISION FOR MIMO SYSTEMS - 11.7.1 Log-likelihood-Ratio (LLR) for SISO Systems - 11.7.2 LLR for Linear Detector based MIMO System - 11.7.3 LLR for MIMO System with a Candidate Vector Set - 11.7.4 LLR for MIMO System using a Limited Candidate Vector Set

4 Page  4 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd Chapter 11. Signal Detection for Spatially Multiplexed MIMO Systems 11.1 Linear Signal Detection

5 Page  5 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.1 Linear Signal Detection

6 Page  6 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.1.1 ZF Signal Detection

7 Page  7 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.1.1 ZF Signal Detection

8 Page  8 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.1.2 MMSE Signal Detection

9 Page  9 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.1.2 MMSE Signal Detection

10 Page  10 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.1.2 MMSE Signal Detection

11 Page  11 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.1.2 MMSE Signal Detection

12 Page  12 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.2 OSIC Signal Detection

13 Page  13 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.2 OSIC Signal Detection

14 Page  14 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.2 OSIC Signal Detection

15 Page  15 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.3 ML Signal Detection

16 Page  16 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method

17 Page  17 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method

18 Page  18 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method

19 Page  19 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method

20 Page  20 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method

21 Page  21 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method

22 Page  22 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method

23 Page  23 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.4 Sphere Decoding Method MultiplicationsDivisionsSquare roots 1600 in (11.33)1400 Step 1011 Step 2-4 each121 update100

24 Page  24 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.5 QRM-MLD Method

25 Page  25 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.5 QRM-MLD Method

26 Page  26 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.5 QRM-MLD Method

27 Page  27 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6 Lattice Reduction-Aided Detection

28 Page  28 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm

29 Page  29 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm

30 Page  30 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm

31 Page  31 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm

32 Page  32 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm

33 Page  33 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm

34 Page  34 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.1 Lenstra-Lenstra-Lovasz (LLL) Algorithm

35 Page  35 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.2 Application of Lattice Reduction

36 Page  36 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.6.2 Application of Lattice Reduction

37 Page  37 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7 Soft Decision MIMO Systems 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

38 Page  38 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

39 Page  39 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

40 Page  40 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

41 Page  41 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

42 Page  42 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

43 Page  43 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

44 Page  44 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

45 Page  45 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

46 Page  46 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.1 Log-Likehood-Ratio (LLR) for SISO Systems

47 Page  47 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.2 LLR for Linear Detector-Based MIMO System

48 Page  48 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.2 LLR for Linear Detector-Based MIMO System

49 Page  49 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.2 LLR for Linear Detector-Based MIMO System

50 Page  50 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.3 LLR for MIMO System with a Candidate Vector Set

51 Page  51 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.3 LLR for MIMO System with a Candidate Vector Set

52 Page  52 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.3 LLR for MIMO System with a Candidate Vector Set

53 Page  53 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.3 LLR for MIMO System with a Candidate Vector Set

54 Page  54 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.4 LLR for MIMO System Using a Limited Candidate Vector Set

55 Page  55 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.4 LLR for MIMO System Using a Limited Candidate Vector Set

56 Page  56 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.4 LLR for MIMO System Using a Limited Candidate Vector Set Multiplication FFT size64 CP size16 Antenna configuration 4 x 4 Packet length10 OFDM symbols Symbol mapping16-QAM Channel coding Convolutional coding -Rate: 1/2 -Constraint length: K=7 -Generating polynomials: [1001111] and [1101101].

57 Page  57 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.4 LLR for MIMO System Using a Limited Candidate Vector Set

58 Page  58 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd 11.7.4 LLR for MIMO System Using a Limited Candidate Vector Set

59 Page  59 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd Appendix 11.A Derivation of Equation (11.23)

60 Page  60 MIMO-OFDM Wireless Communications with MATLAB ® Yong Soo Cho, Jaekwon Kim, Won Young Yang, and Chung G. Kang © 2010 John Wiley & Sons (Asia) Pte Ltd Appendix 11.A Derivation of Equation (11.23)


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