doc.: IEEE ad Submission May 2010 Hiroshi Harada, NICTSlide 1 Complete Proposal for ad Date: Authors: NameCompanyAddressPhone Hiroshi Harada NICT 3-4, Hikarino-oka, Yokosuka, Japan Chang-Woo Zhou Junyi Ryuhei Tuncer SUM Chin LU Liru, Alina 20 Science Park Road, #01- 09A/10, TeleTechPark, Singapore Xing

doc.: IEEE ad Submission Summary This document proposes the PHY and MAC layer design for ad 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 supporting for user experience –Enhanced MAC purposes to achieve very high throughput (>1Gbps), support directivity, and coexist with other 60GHz systems and for QoS improvement Beamforming May 2010 Hiroshi Harada, NICTSlide 2

doc.: IEEE ad Submission Motivation of Proposal This proposal has the following purposes of –Enhancement of PHY and MAC to fulfill the requirements of ad system –Co-existence of other already standardized 60GHz systems such as c WPAN May 2010 Hiroshi Harada, NICTSlide 3

doc.: IEEE ad Submission Presentation Outline Section 1: PHY Proposal for ad –Overview of the Proposed ad PHY –Channelization –Modulation and Coding –Common Mode Signaling –SC PHY Frame Format –OFDM PHY Frame Format –PHY Simulation Results Section 2: MAC Proposal for ad –Overview of the proposed ad MAC –Enhanced MAC –Co-existence –MAC Simulation Results May 2010 Hiroshi Harada, NICTSlide 4

doc.: IEEE ad Submission Section 1: PHY Proposal for ad 5 May 2010

doc.: IEEE ad Submission Abbreviations FEC – forward error correction MCS – Modulation and Coding Scheme SC - Single carrier OFDM - Orthogonal Frequency Division Multiplexing CMS – Common Mode Signaling May 2010 Hiroshi Harada, NICTSlide 6

doc.: IEEE ad Submission Presentation Outline (PHY Layer) Overview of the Proposed ad PHY Channelization Modulation and Coding Common Mode Signaling SC PHY Frame Format OFDM PHY Frame Format May 2010 Hiroshi Harada, NICTSlide 7

doc.: IEEE ad Submission Overview of the Proposed ad PHY The proposed ad 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 May 2010 Hiroshi Harada, NICTSlide 8

doc.: IEEE ad Submission Channelization May 2010 Hiroshi Harada, NICTSlide 9

doc.: IEEE ad Submission 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 3Gbps –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. May 2010 Hiroshi Harada, NICTSlide 10

doc.: IEEE ad Submission Timing Related Values for SC PHY May 2010 Hiroshi Harada, NICTSlide 11

doc.: IEEE ad Submission MCSs for SC PHY May 2010 Hiroshi Harada, NICTSlide 12 *Mandatory MCSs

doc.: IEEE ad Submission Timing Related Values for OFDM PHY MODE 1 May 2010 Hiroshi Harada, NICTSlide 13

doc.: IEEE ad Submission Timing Related Values for OFDM PHY MODE 2 May 2010 Hiroshi Harada, NICTSlide 14

doc.: IEEE ad Submission Timing Related Values for OFDM PHY MODE 3 May 2010 Hiroshi Harada, NICTSlide 15

doc.: IEEE ad Submission MCS for OFDM PHY May 2010 Hiroshi Harada, NICTSlide 16 *FFT size: 512, 128, 64 Data rates are for FFT sizes 512 and 128. For 64, data rates are around 10% less.

doc.: IEEE ad Submission MCS for Common Mode Signaling May 2010 Hiroshi Harada, NICTSlide 17 *Note that CMS is the first MCS in the SC PHY table

doc.: IEEE ad Submission 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 May 2010 Hiroshi Harada, NICTSlide 18

doc.: IEEE ad Submission 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 May 2010 Hiroshi Harada, NICTSlide 19

doc.: IEEE ad Submission SC PHY Frame Format ~ General ~ May 2010 Hiroshi Harada, NICTSlide 20 PLCP Preamble SIGNALDATA Modulation  /2 BPSK  /2 BPSK,  /2 QPSK,  /2 8PSK,  /2 16- QAM FECN/ARS(33,17) RS(255,239), LDPC(672,336), LDPC(672,504), LDPC(672,420), LDPC(672,588) Spreading factor N/A64, 6, 264, 4, 2, 1

doc.: IEEE ad Submission OFDM PHY Frame Format ~ General ~ May 2010 Hiroshi Harada, NICTSlide 21 PLCP PreambleSIGNALDATA Modulation  /2 BPSK QPSK-OFDM QPSK,-OFDM 16-QAM-OFDM, 64-QAM- OFDM FECN/ALDPC(672,336) LDPC(672,336), LDPC(672,504), LDPC(672,420), LDPC(672,588) Spreading factor N/A11

doc.: IEEE ad Submission SC and OFDM PHY Frame Format ~ PLCP Preamble for CMS ~ May 2010 Hiroshi Harada, NICTSlide 22 CMS Preamble

doc.: IEEE ad Submission SC and OFDM PHY Frame Format ~ PLCP Preamble for SC PHY and OFDM PHY ~ May 2010 Hiroshi Harada, NICTSlide 23 SC Preamble OFDM Preamble

doc.: IEEE ad Submission SC and OFDM PHY Frame Format ~ PLCP Preamble Golay Sequences ~ Golay Sequence NameSequence Values a C963AFFAC99CAF05C963AF b 128 0A396C5F0AC66CA0F5C693A00AC66CA0 May 2010 Hiroshi Harada, NICTSlide 24 a 256 = [b 128 a 128 ] b 256 = [b 128 a 128 ]

doc.: IEEE ad Submission PHY Frame Format ~ SIGNAL ~ May 2010 Hiroshi Harada, NICTSlide 25 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) Scrambler IDAggregationMCSFrame Length Pilot Word Length Reserved

doc.: IEEE ad Submission Results of PHY Simulation May 2010 Hiroshi Harada, NICTSlide 26

doc.: IEEE ad Submission Simulation Parameters for Single Carrier PHY Evaluation May Hiroshi Harada, NICT

doc.: IEEE ad Submission 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 are considered in the simulation. PA/PN model with 0.5dB back-off as defined in Evaluation document May Hiroshi Harada, NICT

doc.: IEEE ad Submission PER performance of SC MCSs (AWGN) May CNR(dB) PER SC MCS AWGN PER RS-BPSK PER RS-QPSK PER 1/2 LDPC-BPSK PER 3/4 LDPC-BPSK PER 1/2 LDPC-QPSK PER 3/4 LDPC-QPSK PER 7/8 LDPC-QPSK PER 3/4 LDPC-8PSK PER 3/4 LDPC-16QAM PER Hiroshi Harada, NICT

doc.: IEEE ad Submission May PER performance under CR/LR Omni-Omni LOS Environment CNR(dB) Hiroshi Harada, NICT

doc.: IEEE ad Submission May PER performance under LR/CR Omni-Directional NLOS Environment CNR(dB) Hiroshi Harada, NICT

doc.: IEEE ad Submission May PER performance under LR/CR Directional-Directional NLOS Environment CNR(dB) Hiroshi Harada, NICT

doc.: IEEE ad Submission May Simulation Parameters for OFDM PHY Evaluation Hiroshi Harada, NICT

doc.: IEEE ad Submission Section 2: MAC Proposal for ad May 2010 Hiroshi Harada, NICTSlide 34

doc.: IEEE ad Submission Presentation Outline (MAC Layer) Part1: Overview of the proposed ad MAC –Concept –Basic MAC –Enhanced MAC –High level MAC operations Part2: Enhanced MAC –Contention-free period (CFP) scheduling –Enhanced data transmission –Enhanced co-existence –Directivity support Part3: MAC Simulation Results –Goodput –Delay –Packet Loss May 2010 Hiroshi Harada, NICTSlide 35

doc.: IEEE ad Submission Part1: Overview of the proposed ad MAC 36 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Concept for Proposed ad MAC Proposed ad MAC contains Basic MAC to maintain user experience, and Enhanced MAC to achieve very high throughput and to support directivity and co-existence ad MAC Basic MAC based on Enhanced MAC for Very High Throughput, Directivity and Co-existence + May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Basic MAC All basic functionalities of ad MAC are based on supporting for user experience Basic MAC functions –Scan –Association/Re-associaton/Disassociation –Authentication/Dis-authentication –Channel Accesses – DCF, PCF, HCF, HCCA –Other functions – synchronization, power management, security, etc. 38 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Enhanced MAC Enhanced MAC purposes to achieve very high throughput (>1Gbps), support directivity, and coexist with other 60GHz systems and for QoS improvement Enhanced MAC functions 1.Very High Throughput Achievement Contention-Free Period (CFP) Scheduling Enhanced data transmission in CFP –Frame aggregation & Aggregation-ACK –Bi-directional aggregation with ACK 2.Directivity Support Directional association Beamforming 3.Co-existence Support Co-existence among homogeneous systems Co-existence among heterogeneous systems 39 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission High-Level MAC Operations in ad 40Hiroshi Harada, NICT May 2010

doc.: IEEE ad Submission Part2: Details of Enhanced MAC 41 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Contention-Free Period Scheduling Contention-Free Period (CFP) scheduling supports enhanced data transmission –Dynamically scheduled CFP can guarantee the high throughput and delay requirements of data transmission 42 (Example of contention-free period scheduling) B (Beacon) TS (Traffic Stream) CP (Contention Period) CFP(Contention Free Period) May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Enhanced Data Transmission Enhanced data transmission in CFP includes beamforming support, frame aggregation/aggregation-ACK, and bi- directional aggregation with ACK –Beamforing period in CFP enables to beamform without interference between Src/Dest –Frame aggregation / Aggregation-ACK/ Bi-directional aggregation with ACK guarantees QoS requirements of throughput and delay –Aggregation are performed by on-demand and negotiation between Src/Dest 43 (Example of data transmission during CFP) May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Aggregation / Aggregation ACK / Bi-directional aggregation with ACK Proposed aggregation supports to aggregate video traffics (video aggregation MSDU, VA-MSDU) VA-MSDU frame body consists of –MAC subheader with HCS and aggregated MSDUs with Subframe FCS (SFCS) –MAC subheader contains Aggregated MSDUs information Aggregation ACK (A-ACK) bitmap VA-MSDU allows –maximum length of each MSDU (including SFCS) : 1Mbytes –maximum length of aggregated MSDUs : 16Mbytes –Bi-directional VA-MSDU by using both of aggregation and aggregation ACK bitmap 44 SFCS (Subframe FCS) May 2010

doc.: IEEE ad Submission Negotiation for Aggregation –are performed for capability confirmation –can be operated in CFP or CP –are performed on-demand between Src and Dest –are performed directly between AP and STAs –are performed directly between STA and STA after Directed Link Setup (DLS) defined in Neg. DLS Neg. Case 1 : communication between AP and STAs Neg. Case 2 : communication between STA and STA Hiroshi Harada, NICT May 2010

doc.: IEEE ad Submission Directivity Support Directivity support for ad system includes directional association and beamforming Directional association –Directional beacons (up to 4 beacons) and Directional contention periods (CPs) enable STAs to associate to AP directionally Beamforming –Beamforming protocol is based on 11/496r0 May 2010 Hiroshi Harada, NICTSlide 46 Q-beacon (Directional Quasi-omni beacon) GT (Guardtime)

doc.: IEEE ad Submission Directional Association Example AP –broadcasts beacons to the supported directions –determines the directional beacon interval appropriately STAs –scan beacons on the supported directions –associate with AP on the directional CP 47 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Enhanced Co-existence (1/4) - Co-existence for homogeneous systems - Enhanced co-existence provides co-existence among homogeneous systems and among heterogeneous systems Co-existence for homogeneous systems provides QoS assurance during CFP –Avoid mutual interference by overlapping homogenous networks to data transmission during CFP 48 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Enhanced Co-existence (2/4) - Co-existence for homogeneous systems - Co-existence action frame (CAF) supports to avoid mutual interference by overlapping homogenous networks to data transmission during CFP –CAF includes schedule information of CFP –STAs periodically sends out CAFs for potentially incoming homogeneous networks –STAs scan CAFs before transmitting data during CFP May 2010 Hiroshi Harada, NICTSlide 49

doc.: IEEE ad Submission Enhanced Co-existence (3/4) - Co-existence for heterogeneous systems - There are two 60GHz unlicensed wireless system specifications in the IEEE 802 ( c and ad) A mechanism is proposed to facilitate coexistence between c and ad while minimizing the additional complexity in implementation The co-existence mechanism is based on the document 10/0231r3 (John R. Barr) and 10/0485r0(Chin-Sean Sum ) May 2010 Hiroshi Harada, NICTSlide 50

doc.: IEEE ad Submission Enhanced Co-existence (4/4) - Co-existence for heterogeneous systems - To detect other 60GHz systems operating in the same channels, the BSSs in the vicinity have a quiet period to create a clear channel The quiet periods scheduled by different BSSs partially align to avoid the detection of other systems from being interfered by the signal from adjacent BSS. May 2010 Slide 51 BSS1 BSS3 BSS2 BBB BSS1 Quiet BBB BSS2 Quiet BBB BSS3 Quiet DS B Beacon Quiet Quiet period Quiet AP1 requests AP2 and AP3 to align their quiet periods for interference detection Hiroshi Harada, NICT

doc.: IEEE ad Submission Part3: MAC Simulation Results 52 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Simulation Assumptions Simulator : QualNet ver Assumptions 1.All traffics are transmitted during CFP 2.Priority based CFP allocation 3.CFP allocation for traffics is done by Req./Res. during CP based on EDCA 4.Uncompressed and lightly compressed videos CFPs for those traffics are periodically allocated 5.Hard disk, local file transfer and Web-browing CFPs for those traffics are terminated at the end of each CFP for traffics 6.Beamforming may have been performed during the beamforming period before data transmission in CFP 53 PriorityTraffic HighUncompressed video and lightly compressed video MiddleHard disk and local file transfer LowWeb browsing May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Simulation Parameters 54 Used MCSs SC-MCS 31650MbpsBPSK/RS SC-MCS Mbps16QAM/LDPC Used ACK policies No-ACKImmediate-ACKAggregation-ACK (A-ACK) Aggregation Number of Subframes8 subframes Length of Subframe8KB, 128KB, 1MB IFS MIFS0.5us SIFS2.5us BF period0us Simulation Time 10 minutes Human blockage interval - CFP and CP timing CFP = 9msBeacon + CP = 1ms May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Part3-1: MAC Performance for Home Living Room 55 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Examples of Data Transmission in Home Living Room 56 Peer-to-Peer Communication Video data is transmitted during CFP May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Result for Home living Room Goodput (>1Gbps)Delay (10ms)Packet Loss SC-MCS 12 (5280Mbps,16 QAM/LDPC) No-ACK2.98Gbps7.0ms0% Imm-ACK2.47Gbps11.7ms17% A-ACK (8KB)2.98Gbps6.2ms0% A-ACK(128KB)2.98Gbps5.6ms0% May 2010 Hiroshi Harada, NICTSlide 57 MCS 12 with No-ACK and MCS 12 with Aggregation ACKs (A- ACKs) can clear the requirements of goodput (>1Gbps), delay (<10ms) and packet loss rate (1e-8) in home living room

doc.: IEEE ad Submission Part3-2: MAC Performance for Office Conference Room 58 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission May 2010 Hiroshi Harada, NICTSlide 59 COMPRESSED_VIDEO ・ 2 to 1 FTP( file transfer ) ・ 9 to 2 ・ 3 to 5 ・ 4 to 9 ・ 5 to 3 ・ 7 to 8 ・ 9 to 7 HTTP ・ 3 ・ 4 ・ 5 ・ 6

doc.: IEEE ad Submission Examples of Data Transmission in Office Conference Room Number of traffics during CFP –1 Lightly Compressed Video traffic –7 FTP traffics –4 HTTP traffics 60 May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Result for Office Conference Room This result shows the performance of FTP and HTTP traffic when the video traffic is satisfied the requirements of goodput (600Mbps) and delay (<10ms) on SC-MCS3 61 GoodputDelay (10ms) Packet Loss SC-MCS 3 (1650Mbps, BPSK/RS) Video traffic No-ACK0.6Gbps1.43ms0% Imm-ACK0.6Gbps1.26ms0% A-ACK (8KB)0.6Gbps1.48ms0% FTP traffic No-ACK51.3Mbps-0% Imm-ACK12.2Mbps-0% A-ACK (8KB)51.3Mbps-0% HTTP traffic No-ACK0.878Mbps0.611s0% Imm-ACK0.762Mbps0.705s0% A-ACK (8KB)0.870Mbps0.593s0% May 2010 Hiroshi Harada, NICT

doc.: IEEE ad Submission Conclusion This document proposes the PHY and MAC layer design for ad 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 supporting for user experience –Enhanced MAC purposes to achieve very high throughput (>1Gbps), support directivity, and coexist other 60GHz systems and for QoS improvement May 2010 Hiroshi Harada, NICTSlide 62

doc.: IEEE ad Submission Strawpoll “Do you support adopting the whole or part of the complete proposal in 10/0498r0 as the material to create the first draft of the TGad amendment?” –Yes, No, Abstain 63 May 2010