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Doc.: IEEE 802.11-10/0432r2 Submission May 2010 Slide 1 PHY/MAC Complete Proposal to TGad Date: 2010-05-18 Author(s)/Supporter(s): NameCompanyAddressPhoneemail.

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Presentation on theme: "Doc.: IEEE 802.11-10/0432r2 Submission May 2010 Slide 1 PHY/MAC Complete Proposal to TGad Date: 2010-05-18 Author(s)/Supporter(s): NameCompanyAddressPhoneemail."— Presentation transcript:

1 doc.: IEEE /0432r2 Submission May 2010 Slide 1 PHY/MAC Complete Proposal to TGad Date: Author(s)/Supporter(s): NameCompanyAddressPhone Abu-Surra, Ban, Banerjea, Basson, Blanksby, Borges, Borison, Cariou, Chamberlin, PhilippeTechnicolor Chang, Chin, Choi, ChangsoonIHP Christin, Chu, Chung, Hyun Coffey, Cordeiro, Derham, Dorsey, Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.

2 doc.: IEEE /0432r2 Submission May 2010 Slide 2 Author(s)/Supporter(s): NameCompanyAddressPhone Elboim, Fischer, Giraud, Glibbery, RonPeraso Golan, Gong, Grandhi, Grass, EckhardIHP Grieve, Grodzinsky, Hansen, Hart, Hassan, Hong, Seung Hosoya, Hosur, SrinathTexas Hsu, Hsu, Hung, Jain, Jauh, Jayabal, Raymond Jararaj Jeon, Jin, Jones, Joseph, StacyBeam Jun, Kaaja, Kafle, Padam Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.

3 doc.: IEEE /0432r2 Submission Author(s)/Supporter(s): NameCompanyAddressPhone Kakani, Naveen Kasher, Assaf Kasslin, Mika Kim, Hodong Kim, Yongsun Kraemer, Rolf IHP Kreifeldt, RickHarman Kwon, Edwin Kwon, Hyoungjin ETRI Kwon, Hyukchoon Laine, Tuomas Lakkis, Ismail Lee, Hoosung Lee, Lee, Liu, Yong Lou, Hui-Ling Lynch, Brad Peraso Majkowski, Jakub Marin, Janne Maruhashi, Kenichi Matsumoto, Taisuke Meerson, Yury Mese, Murat Montag, Bruce Myles, Andrew Nandagopalan, Saishankar Ngo, Chiu Nikula, Eero Slide 3 May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.

4 doc.: IEEE /0432r2 Submission Author(s)/Supporter(s): NameCompanyAddressPhone Park, DS Park, Minyoung Peng, Xiaoming Pi, Zhouyue Ponnampalam, Vish Prasad, Narayan Prat, Gideon Qu, Xuhong Ramachandran, Kishore Raymond, Yu Zhan Roblot, Sandrine Ronkin, Roee Rozen, Ohad Sachdev, Sadri, Sampath, Sanderovich, Amichai Sankaran, Sundar Scarpa, Vincenzo Seok, Yongho Shao, Huai-Rong Shen, Ba-Zhong Sim, Michael Singh, Harkirat Soffer, Menashe Song, SeunghoSK Slide 4 May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.

5 doc.: IEEE /0432r2 Submission Author(s)/Supporter(s): NameCompanyAddressPhone Sorin, Simha Smith, Matt Stacey, Robert Subramanian, Ananth Sutskover, Ilan Taghavi, Hossain Takahashi, Kazuaki Toyoda, Ichihiko Trachewsky, Jason Trainin, Solomon Usuki, Naoshi Varshney, Prabodh Vertenten, Bart Vlantis, George Wang, Chao-Chun Wang, Wang, James Wong, David Tung Chong Yee, James Yucek, Tevfik Yong, Su Khiong Zhang, Hongyuan Slide 5 May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.

6 doc.: IEEE /0432r2 Submission Proposal overview This presentation is part and in support of the complete proposal described in /432r2 (slides) and /433r2 (text) that: –Supports data transmission rates up to 7 Gbps –Supplements and extends the MAC and is backward compatible with the IEEE standard –Enables both the low power and the high performance devices, guaranteeing interoperability and communication at gigabit rates –Supports beamforming, enabling robust communication at distances beyond 10 meters –Supports GCMP security and advanced power management –Supports coexistence with other 60GHz systems –Supports fast session transfer among 2.4GHz, 5GHz and 60GHz May 2010 Slide 6Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.

7 doc.: IEEE /0432r2 Submission Proposal presentation plan IDItemType Subclauses from /433r2 Doc# 1Complete proposal overview Complete proposal (CP) High-level proposal overview Slides: /0432r2 Text: /0433r2 2MAC (Channel Access & QoS) New Technique (NT) 7, , , /0441 3MAC (SFS & BSS mngmt)NT 7, 9.24, , , /0443 4MAC (Sync & power saving)NT7, 11.1, /0446 5MAC (Link maintenance)NT7, 11.8, 11.9, 11.10, /0445 6SecurityNT /0438 7FSTNT /0436 8PHY (Intro./SC)NT All in 21, except , 21.5, /0429 9PHY (OFDM)NT / PHY (CP)NT / BF (SLS)NT All in 9.25 except , , , / BF (BRP)NT , , , , / Relay operationNT /0494 May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 7 This presentation

8 doc.: IEEE /0432r2 Submission To meet the TGad PAR, FRD, EVM and selection procedure requirements, the following additional supporting documents complement this proposal Therefore, this proposal meets all the requirements in the TGad selection procedure to be classified as a complete proposal Additional proposal supporting documents IDItemDoc# 20PAR, FRD and EVM declaration / MAC simulation results and methodology / PHY simulation results and methodology /0431 May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 8

9 doc.: IEEE /0432r2 Submission ItemThis complete proposalSubclause of /433r2 Network architectureInfra-BSS, IBSS, PBSS5.2 Scheduled accessScheduled Service Periods Contention accessEDCA tuned for directional access9.2 Dynamic allocation of resources (Re-)allocation of channel time with support to P2P and directionality , , Power saveNon-AP STA and PCP power save Security mechanismGCMP8 MeasurementsAmendments to k to support directionality PHYSC and OFDM, with common preamble21 BeamformingUnified and flexible beamforming scheme9.25 Fast session transferMulti-band operation across 2.4GHz, 5GHz and 60GHz CoexistenceProvides coexistence with other 60GHz systems11.35 Notable amendments to IEEE Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 9

10 doc.: IEEE /0432r2 Submission MAC/PHY proposal overview Provides an unified and interoperable MAC/PHY across all mmWave implementations –Scalable across different usages, devices, and platforms –Adjustable to meet different power vs. performance trade-offs May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. Protocol architecture 2.4/5GHz 60GHz Slide 10

11 doc.: IEEE /0432r2 Submission MAC May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 11

12 doc.: IEEE /0432r2 Submission MAC challenges As discussed in /572r0, the primary challenge for the MAC is how to deal with directional communication, which is used to combat the high propagation loss in 60GHz –Device discovery becomes a non-trivial problem –Devices need to find the direction for communication, which necessitates the support for beamforming ( /1153r2) – DCF has limitations in the presence of directionality –How to exploit spatial frequency reuse in face of directional communication ( /782r0) May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 12

13 doc.: IEEE /0432r2 Submission New MAC features (described in detail in separate presentations) A new network architecture named Personal Basic Service Set (PBSS), while retaining the existent network architectures Channel access that support directionality and spatial frequency reuse, including both random access and scheduled access A unified and flexible beamforming scheme that can be tuned to simple, low power devices as well as complex devices Enhanced security (GCMP), link adaptation and power saving Multi-band support (fast session transfer) May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 13

14 doc.: IEEE /0432r2 Submission The Personal BSS (PBSS) New network architecture in addition to infrastructure BSS and IBSS, which are also supported PBSS is defined to address some unique usages and challenges of 60GHz communication –Usages: Rapid sync-n-go file transfer, projection to TV/projector, etc. –Challenges: directional channel access, power saving, etc. –More details in /391r0 Ad hoc network similar to the IBSS, but: A STA assumes the role of the PBSS Central Point (PCP) Only the PCP transmits beacon frames May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 14

15 doc.: IEEE /0432r2 Submission The Beacon Interval (BI) structure Beacon time (BT): An access period during which one or more mmWave Beacon frames is transmitted Association beamforming training (A-BFT): An access period during which beamforming training is performed with a PCP or AP Announcement time (AT): A request-response based management access period during which a PCP or AP delivers non-MSDUs and provides access opportunities for STAs to return non-MSDUs Data transfer time (DTT): An access period during which frame exchanges are performed between STAs. The DTT is comprised of contention-based periods (CBPs) and service periods (SPs) May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 15

16 doc.: IEEE /0432r2 Submission Channel access Channel access is coordinated using a schedule, which is delivered by the PCP/AP to non- PCP/non-AP STAs STAs are permitted to transmit data frames during contention-based periods (CBPs) and service periods (SPs) –Access during CBPs is based on EDCA fine-tuned for directional access –Access during SPs is reserved to specific STAs as announced in the schedule or granted by the PCP/AP May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 16

17 doc.: IEEE /0432r2 Submission Fast session transfer (FST) support through multi-band operation Enables transition of communication of STAs from any band/channel to any other band/channel in which is allowed to operate Supports both simultaneous and non-simultaneous operation Supports both transparent and non-transparent FST In transparent FST, a STA uses the MAC same address in both bands/channels involved in the FST In non-transparent FST, the MAC addresses are different Several improvements to speed-up the FST switching time such as transparent FST, security key establishment prior to FST, TS operation over multiple bands, and Block Ack operation over multiple bands Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 17 May 2010

18 doc.: IEEE /0432r2 Submission Beamforming (BF) A unified and flexible BF protocol is proposed that can be tuned to simple, low power devices as well as complex devices Same protocol is used for PCP/AP-to-STA beamforming and STA- to-STA beamforming BF comprised of two independent phases: sector level sweep (SLS) phase and beam refinement protocol (BRP) phase SLS: enables communication at the control PHY rate (MCS0), and typically only provides transmit training BRP: enables receiver training and iterative refinement of the AWV of both transmitter and receiver Support for beam tracking during data communication Slide 18Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010

19 doc.: IEEE /0432r2 Submission BF training examples Two phased arrays Two transmit sector sweeps followed by a beam refinement During a transmit sector sweep, the receiver may be using a quasi-omni receive pattern Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. Initiator has a phased array, responder has a single antenna During the receive sector sweep, the responder transmit a sector sweep many times from its single antenna. The initiator switches receive pattern every packet. Slide 19 May 2010

20 doc.: IEEE /0432r2 Submission Coexistence with other 60GHz systems Proposal enables fair sharing of resources with 15.3c The same channelization as other 60GHz systems is used, and the same SC chip rate as that of 15.3c CMS is adopted As required in the TGad EVM ( /296r16), an AP should not start a BSS where the signal level is above a threshold or upon detecting a 15.3c CMS preamble at >= -60 dBm –In a/n, MCS 0 (BPSK, R=1/2) receive sensitivity is -82dBm and non detection level is -62 dBm → 20 dB difference –In 60GHz, SC MCS 1 receive sensitivity is -68 dBm → 8 dB difference with respect to required c CMS preamble detection threshold –Requirement of detection of c CMS preamble is 12dB more stringent than a/n and non detection! STAs can perform channel measurements and report results to AP/PCP Several mechanisms can be used to mitigate interference with other 60GHz systems, including: –Change operating channel, beamforming, reduce transmit power, move the BT (and thus the BI) in case of an AP or PCP, change or request the change of scheduled SPs and CBPs in the BI, defer transmission for a later time Slide 20Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010

21 doc.: IEEE /0432r2 Submission PHY May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 21

22 doc.: IEEE /0432r2 Submission Agenda Channelization PHY Overview –PHY general parameters Common Preamble Preview –Golay sequences –Preamble structure Short preamble CEF Coding scheme-LDPC Single Carrier modulation –Control MCS –Single carrier MCS set –Single carrier low power mode OFDM modulation RF General parameters Slide 22Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010

23 doc.: IEEE /0432r2 Submission Channelization Channel separation 2160MHz Same channelization as 15.3c, compatible Mask Requirement for coexistence Channel ID Center Freq. (GHz) Channel width (GHz) OFDM Sampling Rate (MHz) SC Chip Rate (MHz) Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 23

24 doc.: IEEE /0432r2 Submission PHY Overview Unified and interoperable PHY –Common preamble –Common MCS –Common coding Different MCS sets for different usages: OFDM and SC –OFDM MCSs for high performance on frequency selective channels up to 64 QAM –SC modulation for low power/low complexity transceivers SC MCS for control signaling (Channel, SNR durability) SC Low Power MCS set –Simpler coding and shorter symbol structure to enable low power implementation Embedded support in BF Different presentation ( /0430r0, /0450r0) Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 24

25 doc.: IEEE /0432r2 Submission PHY Parameters Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 25

26 doc.: IEEE /0432r2 Submission PHY General parameters Sampling rate SC PHY MCS set Symbol Rate = 1760MHz OFDM MCS set Sampling Rate = 2640 MHz Sampling Rate is Exactly 1.5x the SC symbol rate SC block – 512 symbols of which 64 chips GI OFDM nominal sample rate 2640MHz = 1.5 times SC symbol rate 512 samples FFT 128 samples GI 336 data subcarriers 16 pilot subcarriers Common Packet Structure Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 26

27 doc.: IEEE /0432r2 Submission Common Preambles Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 27

28 doc.: IEEE /0432r2 Submission Complementary sequences Time domain channel estimation May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 28 a H a*h Golay Correlator Ra=a*a*h b H b*h Golay Correlator Rb=b*b*h ∑

29 doc.: IEEE /0432r2 Submission Short Preambles Complementary sequences are used to differentiate control MCS and high rate MCSs –38 repetition for CP –14 repetition for SC/OFDM May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 29 CP: G b128 STF=38xGb128, -Gb, -Ga CEF … - G b128 High rate: G a128 STF=14xGa128,-Ga CEF … - G b128 -G a128

30 doc.: IEEE /0432r2 Submission Common Preamble Transmitted using π/2-BPSK at SC symbol rate Short Training field composed of 15 repetitions of a 128 samples Golay sequence Channel Estimation based on 512 points complementary sequences followed by a guard interval Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 30

31 doc.: IEEE /0432r2 Submission SC/OFDM Channel Estimation Sequence The use of SC/OFDM MCS set is signaled using the CEF pattern as shown below SC: G a128 -G a128 STF CEF u 512 v 512 … -G a128 G b128 -G a128- G b128 G a128 - G b128 -G a128 - G b128 v 128 OFDM: STF CEF v 512 u 512 … - G b128 v 128 -G a128 G a128 - G b128 -G a128 - G b128 -G a128 G b128 -G a128- G b128 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 31

32 doc.: IEEE /0432r2 Submission LDPC Coding Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 32

33 doc.: IEEE /0432r2 Submission LDPC Code Set Overview Four codes of common codeword length of 672 Cyclic shifted identity (CSI) construction Submatrix size 42 Excellent coding gain on realistic channels Construction supports high throughput implementation Single construction supports code rates of 1/2, 5/8, 3/4, and 13/16 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 33

34 doc.: IEEE /0432r2 Submission LDPC Code Set Implementation Low complexity / low latency encoding –Shared terms in systematic product calculation across all codes –Back substitution for parity calculation High throughput / low power decoding –Layer decoding Each code matrix H has 4 layers with a single set element per column 4 clock cycles per decoder iteration –Fully parallel belief propagation decoding Code set super-position matrix has single CSI value per location which minimizes decoder multiplexing and routing 1 clock cycle per decoder iteration Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 34

35 doc.: IEEE /0432r2 Submission LDPC Matrices Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 35

36 doc.: IEEE /0432r2 Submission LDPC Code Set Performance on AWGN Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 36

37 doc.: IEEE /0432r2 Submission LDPC Code Set Performance OFDM with QPSK modulation on 3ns Exp Decaying PDP Channel 20 iterations floating point belief propagation decoding Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 37

38 doc.: IEEE /0432r2 Submission SC MCS 0: Control MCS Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 38

39 doc.: IEEE /0432r2 Submission Control MCS Very low SNR modem to allow pre-beamforming link Control MCS based on SC modulation ~27.5 Mbps π/2 32 Golay spreading sequence Differential encoding Short rate 1/2 LDPC code using the existing rate 3/4 LDPC code –Effective shorter block size-336 bits Spreading mitigates long channels Differential encoding allows shorter preambles, and results in a robust modem in the presence of phase noise Short LDPC code is efficient for short packets Bits are evenly divided between codewords to allow equal protection A-MPDU aggregation is not allowed using Control MCS Maximum length is limited to 1024 bytes May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 39

40 doc.: IEEE /0432r2 Submission Control MCS Performance May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 40 Simulation Conditions: Packet Length-256 Bytes AWGN No impairments

41 doc.: IEEE /0432r2 Submission Single Carrier MCS Set Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 41

42 doc.: IEEE /0432r2 Submission SC Modulation MCS IndexModulationN CBPS RepetitionCode Rate Data Rate (Mbps) 0π/2-DBPSK1/ π/2-BPSK 1 2 1/2385 2π/2-BPSK111/2770 3π/2-BPSK11 5/ π/2-BPSK11 3/ π/2-BPSK11 13/ π/2-QPSK21 1/ π/2-QPSK21 5/ π/2-QPSK21 3/ π/2-QPSK2113/ π/2-16QAM41 1/ π/2-16QAM41 5/ π/2-16QAM41 3/44620 Mandatory 448 chips per symbol 64 chips constant GI Tracking purposes Can be used for equalization Pi/2 rotation applied to all modulations To reduce PAPR for BPSK To enable GMSK equivalent modulation Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 42

43 doc.: IEEE /0432r2 Submission SCM Performance-AWGN May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 43 Simulation Conditions: Packet Length-8192 Bytes AWGN Red line-With impairments (PN, PA) Blue line-no impairments BPSK MCSs QPSK MCSs 16QAM MCSs

44 doc.: IEEE /0432r2 Submission SC Low Power MCS set Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 44

45 doc.: IEEE /0432r2 Submission Low Power SC Mode Motivation Targets: –Peak power for the entire solution including PHY, MAC, Memory, RF, IOs, peripheral < 500 mW (e.g., USB 2.0) –Average power of PHY/MAC < 150 mW –Maximum delay spread for a 2 m range is in the order of 5 ns Therefore, there is a need for a low complexity low power mode that satisfies these requirements: –Simple FEC: Reed Solomon (224,208) for high data rate Outer Reed Solomon (224,208) + Inner Hamming like block code(16,8) for medium data rate –Simple Equalizer for very short multipath Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 45

46 doc.: IEEE /0432r2 Submission SC Low Power MCS set The FEC is one of the major contributor to the relatively high power consumption of the current SC mode Simple FEC: –Reed Solomon (224, 208) for high data rate –Outer Reed Solomon (224, 208) + Inner Hamming like block code (16,8) for medium data rate Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 46 May 2010

47 doc.: IEEE /0432r2 Submission Low Power Mode Blocking Compatible and built upon current SC mode Block size is 64 chips Sampling rate of 1.76GHz PreambleHeaderData STF Ga128 x 15;-Ga SC CEF SC CEF ~ μs~ μs ~ μs Ga64d56G8d56G8 d56G8 ~ ns Block 2Block 3Block 7Block 1 Block-512Block-512Block-512Ga64... Ga64d56G8d56G8 Block 2Block 7Block 1... Ga64d448 LP MCS set Current SC Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 47

48 doc.: IEEE /0432r2 Submission Low Power MCS Performance May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 48 Simulation Conditions: Packet Length-4096 Bytes AWGN-Upper Figure 1ns RMS Delay Spread-Lower Figure No impairments

49 doc.: IEEE /0432r2 Submission OFDM MCS set Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 49

50 doc.: IEEE /0432r2 Submission OFDM Modulation 512 points FFT GI length of 128 Symbol interleaver for 16 QAM and 64 QAM 16 QAM – 2 code words per symbol 64 QAM – 3 code words per symbol Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 50 MCS indexModulationCode RateNBPSCNCBPSNDBPS Data Rate 13SQPSK 1/ SQPSK 5/ QPSK 1/ QPSK 5/ QPSK 3/ QAM 1/ QAM 5/ QAM 3/ QAM 13/ QAM 5/ QAM 3/ QAM 13/

51 doc.: IEEE /0432r2 Submission SQPSK-Spread QPSK QPSK Modulation (DCM) DTP (Dynamic tone pairing) –Via feedback from the receiver to the transmitter –Number of tone per group, index Pilots –Positions: 20 carriers spacing -150:20:150 –LFSR switched per symbol OFDM Modulation May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 51

52 doc.: IEEE /0432r2 Submission OFDM Performance-AWGN May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 52 Simulation Conditions: Packet Length-8192 Bytes AWGN upper diagram 4ns EXP PDP lower diagram Timing and Freq Sync Ideal PA 13.75ppm CF/Symbol Clock Offset No Phase Noise

53 doc.: IEEE /0432r2 Submission General RF parameters Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 53

54 doc.: IEEE /0432r2 Submission RF General Parameters Transmit EVM for all PHYs Unified mask for all PHYs Tx RF Delay Operating Temperature range Center Frequency leakage Transmit Ramp up/down Center Frequency Tolerance –±20 ppm Symbol Clock Tolerance –±20ppm locked May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 54

55 doc.: IEEE /0432r2 Submission Conclusions Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al. May 2010 Slide 55

56 doc.: IEEE /0432r2 Submission Conclusions This complete proposal meets all the requirements of the TGad PAR and FRD: –Supports data transmission rates up to 7 Gbps –Supplements and extends the MAC and is backward compatible with the IEEE standard –Enables both the low power and the high performance devices, guaranteeing interoperability and communication at gigabit rates –Supports beamforming, enabling robust communication –Supports GCMP security and power management –Supports coexistence with other 60GHz systems –Supports fast session transfer among 2.4GHz, 5GHz and 60GHz May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 56

57 doc.: IEEE /0432r2 Submission Strawpoll Do you support adopting the complete proposal in /433r1 as the first draft specification D0.1 of the TGad amendment? –Y: –N: –A: May 2010 Carlos Cordeiro, Intel /Gal Basson, Wilocity/et. al.Slide 57


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