1. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Preamble & Phy header protection] Date Submitted: [March 3 rd, 2003] Source: [Michael Park] Company [Samsung Electronics co., Ltd] Address [416, Maetan 3dong, Paldal-gu, Suwon-si, Korea] Voice:[+82-31-279-5108], FAX: [+82-31-279-5130], E-Mail:[si0519.park@samsung.com] Re: [none] Abstract:[Propose Preamble Structure & Phy header Protection Scheme] Purpose:[Make a proposal] Notice:This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release:The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15.

2. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 2 Preamble Structure for synchronization

3. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 3 Contents Preamble structure Criterion ARM sequence Performance Conclusion

4. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 4 Preamble structure PreamblePHY Data Signal for Synchronization Signal for channel estimation

5. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 5 Criterion for synchronization sequence Aperiodic correlation property is suitable for the synchronization sequence Merit factor

6. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 6 ARM sequence Good Aperiodic correlation property Easy to implement

7. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 7 ARM sequence (cont’) Aperiodic correlation property of ARM sequence

8. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 8 Performance Correlation power of ARM sequence and Binary CAZAC sequence

9. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 9 Performance (cont’) Correlation values of ARM sequence and Binary CAZAC sequence

10. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 10 Performance Detection probabilities in CM1 and CM4

11. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 11 Performance (cont’) Detection probabilities in each Channel Models

12. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 12 Conclusion Proposed ARM sequence –Good aperiodic correlation property –Simple design –Easy to implement

13. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 13 Error Correcting Code for Physical Header

14. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 14 Contents Introduction Criterion Proposed scheme Performance Conclusion

15. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 15 Introduction Reliability of Physical Header –Error Correcting Code is needed Consideration of Physical header size –Assuming that Physical header size is 11 bits Data rate : 2 bits Frame size : 9 bits The sub-code of the 2 nd order Reed-Muller code

16. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 16 Criterion for Error Correcting code Minimum distance Soft decision decoding scheme Decoding complexity

17. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 17 Proposed scheme (32,11) the sub-code of the 2 nd order Reed-Muller code

18. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 18 Proposed scheme (cont’) Encoder structure

19. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 19 Proposed scheme (cont’) Frame structure

20. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 20 Performance analysis Simulation Condition –AWGN Channel –4 channel models (CM1,CM2,CM3,CM4) IEEE 802.15.3a

21. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 21 Performance (1)

22. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 22 Performance (2)

23. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 23 Performance (3)

24. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 24 Performance (4)

25. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 25 Performance (5)

26. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 26 Performance (6)

27. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 27 Performance (7)

28. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 28 Performance (8)

29. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 29 Performance (9)

30. doc.: IEEE 802.15-03/133r0 Submission March 2003 Michael Park, Samsung Electronics co., LtdSlide 30 Conclusion Advantage of Error correcting code for physical header –High Reliability –Enhanced Overall performance Usage of the sub-code of 2 nd order Reed-Muller code –Optimal code as (32,11) code –Optimal ML decoding is possible –Simple implementation