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Complete Proposal for 802.11ad

Complete Proposal for 802.11ad . Authors:. Date: 2010-05-01. Summary. This document proposes the PHY and MAC layer design for 802.11ad operating in the 60GHz band PHY layer design A hybrid PHY designed consisting of the SC PHY and the OFDM PHY is proposed

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Complete Proposal for 802.11ad

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  1. Complete Proposal for 802.11ad Authors: Date: 2010-05-01 Hiroshi Harada, NICT

  2. Hiroshi Harada, NICT

  3. Summary • This document proposes the PHY and MAC layer design for 802.11ad operating in the 60GHz band • PHY layer design • A hybrid PHY designed consisting of the SC PHY and the OFDM PHY is proposed • Channelization of the 60GHz band is presented • Data rate modes of respective PHYs are listed • Common mode signaling bridging across two PHYs is introduced • Frame format for respective PHYs are presented • MAC layer design • Proposed MAC contains Basic MAC and Enhanced MAC • Basic MAC is based on 802.11-2007and other amendments to support 802.11 user experience • Enhanced MAC is designed to achieve very high throughput (>1Gbps), directivity support, coexistence with other 60GHz systems and QoS improvement • Beam forming Hiroshi Harada, NICT

  4. Motivation of Proposal • This proposal has the following purposes of • Enhancement of 802.11 PHY and MAC to fulfill the requirements of 802.11ad system • Co-existence of other already standardized 60GHz systems such as 802.15.3c WPAN Hiroshi Harada, NICT

  5. Presentation Outline Section 1: PHY Proposal for 802.11ad • Overview of the Proposed 802.11ad PHY • Channelization • Modulation and Coding • Common Mode Signaling • SC PHY Frame Format • OFDM PHY Frame Format • PHY Simulation Results Section 2: MAC Proposal for 802.11ad • Overview of the proposed 802.11ad MAC • Enhanced MAC • Co-existence • MAC Simulation Results Hiroshi Harada, NICT

  6. Section 1: PHY Proposal for 802.11ad

  7. Abbreviations • FEC – forward error correction • MCS – Modulation and Coding Scheme • SC - Single carrier • OFDM - Orthogonal Frequency Division Multiplexing • CMS – Common Mode Signaling Hiroshi Harada, NICT

  8. Presentation Outline (PHY Layer) • Overview of the Proposed 802.11ad PHY • Channelization • Modulation and Coding • Common Mode Signaling • SC PHY Frame Format • OFDM PHY Frame Format Hiroshi Harada, NICT

  9. Overview of the Proposed 802.11ad PHY • The proposed 802.11ad PHY consists any or the combination of the following: • SC PHY • OFDM PHY • Features of the PHY modes: • The SC PHY mainly targets applications with low complexity • The OFDM PHY mainly targets applications that require higher data rates • To reduce implementation burden, both PHYs are designed to have similarities in the aspects of frame construction • To manage multi-PHY-mode management and mitigate interference, the CMS is specified to facilitate coexistence between the SC PHY and the OFDM PHY Hiroshi Harada, NICT

  10. Channelization Hiroshi Harada, NICT

  11. Overview on SC and OFDM Data Rates • The SC and OFDM classes of data rates give flexibility to various potential applications requiring data rate support from several hundreds of Mbps to several Gbps • The data rate classes are categorized as: • Class 1 – up to 1.6Gbps • Class 2 – up to 3 Gbps • Class 3 – up to 7 Gbps • A Robust MCS called CMS is proposed to bridge between the SC and OFDM PHYs • In OFDM PHY, three modes with different FFT sizes are proposed for flexibility. Hiroshi Harada, NICT

  12. Timing Related Values for SC PHY Hiroshi Harada, NICT

  13. MCSs for SC PHY *Mandatory MCSs Hiroshi Harada, NICT

  14. Timing Related Values for OFDM PHY MODE 1 Hiroshi Harada, NICT

  15. Timing Related Values for OFDM PHY MODE 2 Hiroshi Harada, NICT

  16. Timing Related Values for OFDM PHY MODE 3 Hiroshi Harada, NICT

  17. MCS for OFDM PHY *FFT size: 512, 128, 64 Data rates are for FFT sizes 512 and 128. For 64, data rates are around 10% less. Hiroshi Harada, NICT

  18. MCS for Common Mode Signaling *Note that CMS is the first MCS in the SC PHY table Hiroshi Harada, NICT

  19. CMS Functional Description • CMS is the most robust and long reaching MCS in the SC PHY and is specified to bridge between the SC PHY and OFDM PHY • CMS is the mandatory MCS for all STAs • CMS is employed in procedures facilitating multi-PHY-mode network management (i.e. discovery and synchronization) and other cross-PHY procedures Hiroshi Harada, NICT

  20. Generic Frame Format • The following slides show the components of the SC PHY and OFDM PHY frames • PLCP preamble • SIGNAL • DATA • The modulation and coding schemes used in respective components are given • The generic frame format for SC PHY and OFDM PHY are the same • PLCP preamble structure for SC PHY and OFDM PHY are the same • SIGNAL field structure for SC PHY and OFDM PHY are the same Hiroshi Harada, NICT

  21. SC PHY Frame Format~ General ~ Hiroshi Harada, NICT

  22. OFDM PHY Frame Format~ General ~ Hiroshi Harada, NICT

  23. SC and OFDM PHY Frame Format~ PLCP Preamble for CMS ~ CMS Preamble Hiroshi Harada, NICT

  24. SC and OFDM PHY Frame Format~ PLCP Preamble for SC PHY and OFDM PHY ~ SC Preamble OFDM Preamble Hiroshi Harada, NICT

  25. SC and OFDM PHY Frame Format~ PLCP Preamble Golay Sequences ~ a256 = [b128 a128 ] b256 = [b128 a128 ] Hiroshi Harada, NICT

  26. PHY Frame Format~ SIGNAL ~ • PHY header (5 octets) contains • Scrambler ID (4 bits) • Information on scrambling seed • Aggregation (1 bit) • indicates whether aggregation is used • MCS (5 bits) • indicates the modulation and coding information of DATA • Frame length (20 bits) • Indicates the length of the frame • Pilot Word Length (2 bit) • indicates the type of pilot word length in DATA, ignored in OFDM PHY • Reserved (8 bits) Hiroshi Harada, NICT

  27. SC PHY PLCP SIGNAL Construction Hiroshi Harada, NICT

  28. SC PHY DATA Construction Hiroshi Harada, NICT

  29. OFDM PHY PLCP SIGNAL Construction Hiroshi Harada, NICT

  30. OFDM PHY DATA Construction Hiroshi Harada, NICT

  31. Results of PHY Simulation Hiroshi Harada, NICT

  32. Simulation Parameters for Single Carrier PHY Evaluation Hiroshi Harada, NICT

  33. Simulation Channel Model • AWGN channel model • Fading channel model and scenarios • Living Room (LR) • Omni to Omni LOS • Omni to Direction NLOS • Directional to Directional NLOS • Conference Room (CR) • Omni to Omni LOS • Omni to Direction NLOS • Directional to Directional NLOS • Hardware impairments as described in evaluation documents are considered in the simulation Hiroshi Harada, NICT

  34. SC PHY MCSs Hiroshi Harada, NICT

  35. SC All MCSs AWGN PER Hiroshi Harada, NICT

  36. Living Room Omni-Omni-LOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

  37. Conference Room Omni-Omni-LOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

  38. Living Room Omni-Directional-NLOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

  39. Conference Room Omni-Directional-NLOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

  40. Living Room Directional-Directional-NLOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

  41. Conference Room Directional-Directional-NLOS PA Backoff Power: MCS0: 0.5dB MCS1: 0.5dB MCS2: 0.5dB MCS3: 0.5dB MCS4: 0.5dB MCS5: 0.5dB MCS6: 0.5dB MCS7: 5dB MCS8: 5dB MCS9: 5dB MCS10: 6dB MCS11: 5dB MCS12: 5dB Hiroshi Harada, NICT

  42. Simulation Parameters for OFDM PHY Evaluation Hiroshi Harada, NICT

  43. OFDM PHY MCSs Hiroshi Harada, NICT

  44. OFDM on AWGN Hiroshi Harada, NICT

  45. OFDM MCSs on Channel model #1- Living room, Omni Tx, Omni Rx, LOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

  46. OFDM MCSs on Channel model #2- Living room, Omni Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

  47. OFDM MCSs on Channel model #3-Living room, Directional Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

  48. OFDM MCSs on Channel model #4- Conference room, Omni Tx, Omni Rx, LOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

  49. OFDM MCSs on Channel model #5- Conference room, Omni Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

  50. OFDM MCSs on Channel model #6- Conference room, Directional Tx, Directional Rx, NLOS PA Backoff Power: QPSK(1/2): 10dB QPSK(3/4): 10dB QPSK(7/8): 10dB 16QAM(1/2): 14dB 16QAM(3/4) :14dB 16QAM(7/8): 14dB 64QAM(3/4): 14dB Hiroshi Harada, NICT

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