ETSI TR 103 234 V1.1.1 (2014-12)

Power Line Telecommunications; Powerline recommendations for very high bitrate services

DTR/PLT-00041

General Information

• Status: Published
• Publication Date: 18-Dec-2014
• Technical Committee: PLT - Powerline Telecommunications
• Current Stage: 12 - Completion
• Due Date: 02-Jan-2015
• Completion Date: 19-Dec-2014

Standards Content (Sample)

ETSI TR 103 234 V1.1.1 (2014-12)






TECHNICAL REPORT
Power Line Telecommunications;
Powerline recommendations for very high bitrate services

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2 ETSI TR 103 234 V1.1.1 (2014-12)



Reference
DTR/PLT-00041
Keywords
MIMO, powerline, video
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3 ETSI TR 103 234 V1.1.1 (2014-12)
Contents
Intellectual Property Rights . 9
Foreword . 9
Modal verbs terminology . 9
Introduction . 9
1 Scope . 11
2 References . 11
2.1 Normative references . 11
2.2 Informative references . 11
3 Abbreviations . 12
4 HD and UHD video specifications . 13
5 MPEG4-AVC VERSUS HEVC for Video Compression . 14
5.1 Introduction to video codecs MPEG4-AVC and HEVC . 14
5.2 Description of the main coding profiles . 14
5.2.1 The H.265 (MPEG4-AVC) profiles . 14
5.2.2 The H.265 (HEVC) profiles . 14
5.3 Critical coding parameters for the study . 15
5.3.1 Choice of the codecs . 15
5.3.2 Choice of the global parameters . 15
5.4 Performance study . 16
5.4.1 Quality criteria . 16
5.4.1.1 General case (without transmission) . 16
5.4.1.2 Case with transmissions . 17
5.4.2 Test sequences . 18
5.4.2.1 Comparison strategy. 18
5.4.2.2 Choice of the test video sequences . 18
5.4.3 Coding at fixed bit-rate or fixed Quality . 19
5.5 Tuning of the parameters . 21
5.5.1 Parameterization of the codecs . 21
5.5.2 Limiting the size of the slices . 26
5.6 Coding of a "real life" video . 27
5.7 Conclusion . 28
6 UHD video over Powerline Networks SISO versus MIMO . 28
6.1 Selected Approach for the Test Campaign . 28
6.1.1 Complexity Analysis. 28
6.1.2 Test Methodology . 30
6.1.3 Reference sequences . 30
6.2 Introduction to Broadband Powerline Technologies . 31
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6.2.1 HomePlug AV (SISO only) . 32
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6.2.2 HomePlug AV2 (SISO & MIMO) . 32
6.3 Laboratory Test Campaign . 33
6.3.1 Introduction. 33
6.3.1.1 Objectives and Goals. 33
6.3.1.2 Selected Approach . 33
6.3.2 Results analysis . 33
6.3.2.1 NAL Unit size impact . 34
6.3.2.2 I frame period impact . 36
6.3.2.3 Coding strategy impact . 40
6.3.2.4 H.264 vs H.265 with HD sequences . 43
6.3.2.5 H.264 vs H.265 with UHD sequences . 45
6.3.2.6 AV vs AV2 SISO vs AV2 MIMO Raw PLC performance . 47
6.3.2.7 Video Streaming over AV vs AV2 SISO vs AV2 MIMO performance . 48
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4 ETSI TR 103 234 V1.1.1 (2014-12)
6.3.3 Laboratory Test Campaign Conclusions . 49
6.4 Field Test Campaign . 50
6.4.1 Introduction. 50
6.4.2 Field Tests Detailed Results. 50
6.4.2.1 Home #2 . 51
6.4.2.1.1 Overall Home Statistics . 51
6.4.2.1.2 H.264 vs H.265 . 51
6.4.2.1.3 AV vs AV2 SISO vs AV2 MIMO . 51
6.4.2.2 Home #3 . 52
6.4.2.2.1 Overall Home Statistics . 52
6.4.2.2.2 H.264 vs H.265 . 52
6.4.2.2.3 AV vs AV2 SISO vs AV2 MIMO . 52
6.4.2.3 Home #4 . 53
6.4.2.3.1 Overall Home Statistics . 53
6.4.2.3.2 H.264 vs H.265 . 53
6.4.2.3.3 AV vs AV2 SISO vs AV2 MIMO . 53
6.4.2.4 Home #5 . 53
6.4.2.4.1 Overall Home Statistics . 53
6.4.2.4.2 H.264 vs H.265 . 54
6.4.2.4.3 AV vs AV2 SISO vs AV2 MIMO . 54
6.4.2.5 Home #6 . 54
6.4.2.5.1 Overall Home Statistics . 54
6.4.2.5.2 H.264 vs H.265 . 54
6.4.2.5.3 AV vs AV2 SISO vs AV2 MIMO . 55
6.4.2.6 Home #7 . 55
6.4.2.6.1 Overall Home Statistics . 55
6.4.2.6.2 H.264 vs H.265 . 55
6.4.2.6.3 AV vs AV2 SISO vs AV2 MIMO . 55
6.4.2.7 Home #8 . 56
6.4.2.7.1 Overall Home Statistics . 56
6.4.2.7.2 H.264 vs H.265 . 56
6.4.2.7.3 AV vs AV2 SISO vs AV2 MIMO . 56
6.4.2.8 Prongs location analysis . 57
6.4.2.8.1 Overall statistical prongs location results . 57
6.4.3 Field Test Campaign Conclusions . 57
7 Conclusion . 59
Annex A: Coding parameters collection . 61
Annex B: Laboratory Test Campaign Description . 63
B.1 Test Bench Presentation . 63
B.1.1 PLC Transmission Test Bench . 63
B.1.2 Traffic Generation and Measurement Test Bench . 65
B.1.3 Video Diffusion Test Bench . 67
B.1.3.1 Software configuration . 67
B.1.3.2 Protocol stack for video streaming . 67
B.1.4 Video processing test bench. 68
B.1.4.1 Presentation . 68
B.1.4.2 Results collection . 69
B.2 Test Plan . 70
B.2.1 Raw PLC Performances on AWGN Channel . 70
B.2.2 Video Streaming Performance over PLC on AWGN Channel . 72
Annex C: Field Test Campaign Description . 75
C.1 Introduction . 75
C.1.1 Objectives and Goals . 75
C.1.2 Selected Approach . 75
C.2 Description of selected locations . 75
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5 ETSI TR 103 234 V1.1.1 (2014-12)
C.3 Test Methodology . 76
C.3.1 Test Pairs Selection . 76
C.3.2 Test Plan . 76
C.3.3 Results collection . 77
Annex D: General principle of HEVC . 78
D.1 Introduction . 78
D.2 HEVC - What is new compared to MPEG4-AVC? . 78
D.2.1 Principal similarities . 78
D.2.2 Principal dissimilarities . 78
Annex E: Bibliography . 79
History . 80

ETSI

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6 ETSI TR 103 234 V1.1.1 (2014-12)
List of Figures
Figure 1: General Principles of tests and video quality measurements .10
Figure 2: Number of Pixels of UHDTV [i.4] versus HDTV .13
Figure 3: Comparison between PSNR and SSIM .17
Figure 4: Effect of block loss .17
Figure 5: Effects of packets loss .18
Figure 6: Choice of a relevant 4K-sequence for the tests. The considered Gop size is equal to 10 .19
Figure 7: Frame extracted from "Park Joy" video .19
Figure 8: PSNR in function of the frame for a constant bit-rate constraint .20
Figure 9: PSNR in function of the frame for a constant quality constraint .20
Figure 10: Bit-rate in function of the frame for a constant quality constraint .21
Figure 11: Reduction of bit-rate between x265 and x264 .22
Figure 12: Comparison of IPPP… and IBBB… .22
Figure 13: Comparison of the sensitivity on the GOP size for x264 .23
Figure 14: Comparison of the sensitivity on the GOP size for x265 .23
Figure 15: Comparison of the sensitivity on the GOP size for x264 .24
Figure 16: Comparison of the sensitivity on the GOP size for x265 .24
Figure 17: Comparison of the sensitivity on the GOP size for x264 .25
Figure 18: Comparison of the sensitivity on the GOP size for x265 .25
Figure 19: Comparison of the sensitivity on the GOP size for x264 .26
Figure 20: Comparison of the sensitivity on the GOP size for x265 .26
Figure 21: Overload due to limiting the size of the slice .27
Figure 22: x264 vs x265: Quality comparison .27
Figure 23: Bit-rate reduction from H.264 to H.265 .28
Figure 24: MIMO modes explored in STF410 .31
Figure 25: Impact of NAL unit size on decoding performances - % of frames decoded .35
Figure 26: Impact of NAL unit size on decoding performances - SSIM .35
Figure 27: Impact of NAL unit size on decoding performances - PSNR .36
Figure 28: Video diffusion bitrate behaviour .36
Figure 29: I period / GOP size impact - H.264 - % of frames decoded .37
Figure 30: I period / GOP size impact - H.264 - SSIM .38
Figure 31: I period / GOP size impact - H.264 - PSNR .38
Figure 32: I period / GOP size impact - H.265 - % of frames decoded .39
Figure 33: I period / GOP size impact - H.265 - SSIM .39
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7 ETSI TR 103 234 V1.1.1 (2014-12)
Figure 34: I period / GOP size impact - H.265 - PSNR .40
Figure 35: Alea vs LowDelay - H.264 - % of frames decoded .41
Figure 36: Alea vs LowDelay - H.264 - SSIM .41
Figure 37: Alea vs LowDelay - H.264 - PSNR .42
Figure 38: Alea vs LowDelay - H.265 - % of frames decoded .42
Figure 39: Alea vs LowDelay - H.265 - SSIM .43
Figure 40: Alea vs LowDelay - H.265 - PSNR .43
Figure 41: H.264 w/x264 vs H.265 w/HM - % of frames decoded .44
Figure 42: H.264 w/x264 vs H.265 w/HM - SSIM .44
Figure 43: H.264 w/x264 vs H.265 w/HM - PSNR .45
Figure 44: H.264 w/x264 vs H.265 w/HM (UHD) - % of frames decoded .45
Figure 45: H.264 w/x264 vs H.265 w/HM (UHD) - SSIM .46
Figure 46: H.264 w/x264 vs H.265 w/HM (UHD) - PSNR .46
Figure 47: H.264 w/x264 vs H.265 w/HM (UHD) - QoE .47
Figure 48: HPAV vs AV2 SISO vs AV2 MIMO Raw PLC performance.47
Figure 49: HP AV vs AV2 SISO vs AV2 MIMO - % of frames decoded .48
Figure 50: HP AV vs AV2 SISO vs AV2 MIMO - SSIM .48
Figure 51: HP AV vs AV2 SISO vs AV2 MIMO - PSNR .49
Figure 52: HP AV vs AV2 SISO vs AV2 MIMO - QoE.49
Figure 53: Cumulative SSIM scores.58
Figure B.1: PLC Test Bench synoptic .64
Figure B.2: PLC Test Bench .64
Figure B.3: Synoptic of the PLC Test Bench configuration for signal power measurement.65
Figure B.4: Protocol stack used for video streaming .68
Figure B.5: Folder tree .
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