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Submission doc.: IEEE 802.11- 15/0339r0 March 2015 Alecsander Eitan, Qualcomm Slide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors: N am e A ffiliations A ddress Phone em ail Alecsander Eitan Qualcom m 5775 M orehouse D r, San D iego, CA 92121 +1-858-587-1121 [email protected] Am ichai Sanderovich Qualcom m 5775 M orehouse D r, San D iego, CA 92121 +1-858-587-1121 [email protected]

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Page 1: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 1

SC 64APSK for 802.11ayDate: 2015-03-08

Name Affiliations Address Phone email Alecsander Eitan

Qualcomm 5775 Morehouse Dr, San Diego, CA 92121

+1-858-587-1121

[email protected]

Amichai Sanderovich

Qualcomm 5775 Morehouse Dr, San Diego, CA 92121

+1-858-587-1121

[email protected]

Authors:

Page 2: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 2

Motivation and purpose

• 802.11ay goals are to extend the 11ad bitrate and performance• At this time both SC and OFDM are considered for 11ay.

• In this presentation, we contribute to this goal by:• Addition of 64 constellation to SC modulation to increase the

bitrate of links that support only single channel SC (w or w/o channel bonding)

• Demonstrating the technical feasibility of achieving this goal

• Presenting simulation results

• Additional to the material presented in:

11-15-0094-00-ng60-SC 64QAM for NG60.pptx

Page 3: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 3

Benefits of 64 Constellation

• Increase of 50% in PHY throughput or decrease of power consumption• Increase spectral efficiency

• Benefit in dense environment

• Simple extension of existing modem

Page 4: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 4

Mapping – straight forward extension

Use standard 64QAM

gray code mapping

- same as OFDM mapping

Page 5: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 5

64AQPSK – (developed by DVB-S2X)

• We tested various versions.

• DVB-S2X are highly optimized constellations

• We selected version is 8+16+20+20

with radiuses:

[1, 2.2, 3.6, 5.0]

8+16+20+20APSK

Page 6: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 6

Bit Mapping

-2 0 2-2

-1

0

1

2BIT: 000001

-2 0 2-2

-1

0

1

2BIT: 000010

-2 0 2-2

-1

0

1

2BIT: 000100

-2 0 2-2

-1

0

1

2BIT: 001000

-2 0 2-2

-1

0

1

2BIT: 010000

-2 0 2-2

-1

0

1

2BIT: 100000

Page 7: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 7

PAPR

• 64QAM:• Peak: 1.5275• PAPR: 3.68dB

• 64APSK• Peak: 1.3655• PAPR: 2.71dB

Page 8: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 8

64APSK Implementation Challenges

• Mapper and/or Tx Filter• Slightly more complex than 64QAM but still

manageable

• Demapper• Looks much more complex than 64QAM• LUT implementation is simple

Page 9: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 9

Simulation Results

Page 10: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 10

64QAM vs 64APSK

14 15 16 17 18 19 2010

-7

10-6

10-5

10-4

10-3

10-2

10-1

100

SNR [dB]

BE

R

Performance of 64QAM & 64APSK in AWGN (Float)

64QAM 5/864QAM 3/4

64QAM 13/16

64APSK 5/8

64APSK 3/464APSK 13/16

Page 11: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 11

Performance of 64APSK with AWGN and PN

10 12 14 16 18 20 22 2410

-8

10-7

10-6

10-5

10-4

10-3

10-2

10-1

100

SNR [dB]

BE

R

Performance of Demapper for 64APSK in AWGN w PN

FloatMaxSum 5/8FloatLogSum 3/4

FloatLogSum 13/16

FloatLogSum 5/8

FloatMaxSum 3/4FloatMaxSum 13/16

FixedMaxSum 5/8

FixedMaxSum 3/4FixedMaxSum 13/16

Page 12: Submission doc.: IEEE 802.11-15/0339r0 March 2015 Alecsander Eitan, QualcommSlide 1 SC 64APSK for 802.11ay Date: 2015-03-08 Authors:

Submission

doc.: IEEE 802.11-15/0339r0March 2015

Alecsander Eitan, QualcommSlide 12

Summary

• We suggest to add 64APSK to the SC modulation, with existing LDPC rates, as part of the 11ay

• Benefits: 50% throughput increase and increased spectral efficiency

• We are getting more confident that 64APSK SC is feasible


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