doc.: ieee 802.11-10-0498-00-00ad submission may 2010 hiroshi harada, nictslide 1 complete proposal...

doc.: IEEE 802.11-10-0498-00-00ad

Submission

May 2010

Hiroshi Harada, NICTSlide 1

Complete Proposal for 802.11ad

Date: 2010-05-01

Authors:

Name Company Address Phone Email

Hiroshi Harada

NICT

3-4, Hikarino-oka, Yokosuka, Japan

+81-46-847-5074 [email protected]

Chang-Woo Pyo [email protected]

Zhou Lan [email protected]

Junyi Wang [email protected]

Ryuhei Funada [email protected]

Tuncer Baykas [email protected]

SUM Chin Sean [email protected]

LU Liru, Alina 20 Science Park Road, #01-09A/10, TeleTechPark,

Singapore

[email protected]

Xing Zhang [email protected]

doc.: IEEE 802.11-10-0498-00-00ad

Submission

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 802.11-2007 supporting for 802.11 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


doc.: IEEE 802.11-10-0498-00-00ad

Submission

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

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

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

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Section 1: PHY Proposal for 802.11ad

5

May 2010

doc.: IEEE 802.11-10-0498-00-00ad

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


doc.: IEEE 802.11-10-0498-00-00ad

Submission

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

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

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

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Channelization

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

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


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Timing Related Values for SC PHY

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

MCSs for SC PHY

May 2010

Hiroshi Harada, NICTSlide 12*Mandatory MCSs

doc.: IEEE 802.11-10-0498-00-00ad

Submission

Timing Related Values for OFDM PHY MODE 1

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission


May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

MCS for OFDM PHY

May 2010


*FFT size: 512, 128, 64

Data rates are for FFT sizes 512 and 128. For 64, data rates are around 10% less.

doc.: IEEE 802.11-10-0498-00-00ad

Submission

MCS for Common Mode Signaling

May 2010


*Note that CMS is the first MCS in the SC PHY table

doc.: IEEE 802.11-10-0498-00-00ad

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


doc.: IEEE 802.11-10-0498-00-00ad

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


doc.: IEEE 802.11-10-0498-00-00ad

Submission

SC PHY Frame Format~ General ~

May 2010


PLCP Preamble

SIGNAL DATA

Modulation /2 BPSK /2 BPSK/2 BPSK, /2 QPSK, /2 8PSK, /2 16-QAM

FEC N/A RS(33,17)RS(255,239), LDPC(672,336), LDPC(672,504), LDPC(672,420), LDPC(672,588)

Spreading factor

N/A 64, 6, 2 64, 4, 2, 1

doc.: IEEE 802.11-10-0498-00-00ad

Submission

OFDM PHY Frame Format~ General ~

May 2010


PLCP Preamble SIGNAL DATA

Modulation /2 BPSK QPSK-OFDMQPSK,-OFDM 16-QAM-OFDM, 64-QAM-OFDM

FEC N/A LDPC(672,336)LDPC(672,336), LDPC(672,504), LDPC(672,420), LDPC(672,588)

Spreading factor

N/A 1 1

doc.: IEEE 802.11-10-0498-00-00ad

Submission

SC and OFDM PHY Frame Format~ PLCP Preamble for CMS ~

May 2010


CMS Preamble

doc.: IEEE 802.11-10-0498-00-00ad

Submission

SC and OFDM PHY Frame Format~ PLCP Preamble for SC PHY and OFDM

PHY ~

May 2010


SC Preamble

OFDM Preamble

doc.: IEEE 802.11-10-0498-00-00ad

Submission

SC and OFDM PHY Frame Format~ PLCP Preamble Golay Sequences ~

Golay Sequence Name Sequence Values

a128 0536635005C963AFFAC99CAF05C963AF

b128 0A396C5F0AC66CA0F5C693A00AC66CA0

May 2010


a256 = [b128 a128 ]

b256 = [b128 a128 ]

doc.: IEEE 802.11-10-0498-00-00ad

Submission

PHY Frame Format~ SIGNAL ~

May 2010


• 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 ID Aggregation MCS Frame Length

Pilot Word Length

Reserved

doc.: IEEE 802.11-10-0498-00-00ad

Submission

Results of PHY Simulation

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Simulation Parameters for Single Carrier PHY Evaluation

May 2010

27 Hiroshi Harada, NICT

doc.: IEEE 802.11-10-0498-00-00ad

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 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

PER performance of SC MCSs (AWGN)

May 2010

29

-2 0 2 4 6 8 10 12 14 1610

-3

10-2

10-1

100

CNR(dB)

PER

SC MCS AWGN PER

RS-BPSK PERRS-QPSK PER1/2 LDPC-BPSK PER3/4 LDPC-BPSK PER1/2 LDPC-QPSK PER3/4 LDPC-QPSK PER7/8 LDPC-QPSK PER3/4 LDPC-8PSK PER3/4 LDPC-16QAM PER

Hiroshi Harada, NICT

doc.: IEEE 802.11-10-0498-00-00ad

Submission

May 2010

30

PER performance under CR/LR Omni-Omni LOS Environment

-2 0 2 4 6 8 10 12 14 16 1810

-3

10-2

10-1

100

CNR

PE

R

SC LDPC FADING LR/CR Omni-Omni LOS PER

1/2 LDPC-BPSK LR-001 PER1/2 LDPC-BPSK CR-001 PER3/4 LDPC-BPSK LR-001 PER3/4 LDPC-BPSK CR-001 PER1/2 LDPC-QPSK LR-001 PER1/2 LDPC-QPSK CR-001 PER3/4 LDPC-QPSK LR-001 PER3/4 LDPC-QPSK CR-001 PER7/8 LDPC-QPSK LR-001 PER7/8 LDPC-QPSK CR-001 PER3/4 LDPC-8PSK LR-001 PER3/4 LDPC-8PSK CR-001 PER3/4 LDPC-16QAM LR-001 PER3/4 LDPC-16QAM CR-001 PER

CNR(dB)


doc.: IEEE 802.11-10-0498-00-00ad

Submission

May 2010

31

-2 0 2 4 6 8 10 12 14 16 1810

-3

10-2

10-1

100

CNR

PER

SC LDPC FADING LR/CR Omni-Directional NLOS PER


PER performance under LR/CR Omni-Directional NLOS Environment

CNR(dB)


doc.: IEEE 802.11-10-0498-00-00ad

Submission

May 2010

32

-2 0 2 4 6 8 10 12 14 16 1810

-3

10-2

10-1

100

CNR

PER

SC LDPC FADING LR/CR Directional-Directional NLOS PER


PER performance under LR/CR Directional-Directional NLOS Environment

CNR(dB)


doc.: IEEE 802.11-10-0498-00-00ad

Submission

May 2010

33

Simulation Parameters for OFDM PHY Evaluation


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Section 2: MAC Proposal for 802.11ad

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Presentation Outline (MAC Layer)

Part1: Overview of the proposed 802.11ad 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


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Part1: Overview of the proposed 802.11ad MAC

36

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Concept for Proposed 802.11ad MAC• Proposed 802.11ad MAC contains Basic MAC to maintain

802.11 user experience, and Enhanced MAC to achieve very high throughput and to support directivity and co-existence

37

802.11ad MAC802.11ad MAC

Basic MAC based on 802.11-2007Basic MAC based on 802.11-2007

Enhanced MAC for Very High Throughput, Directivity

and Co-existence

Enhanced MAC for Very High Throughput, Directivity

and Co-existence

+

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Basic MAC

• All basic functionalities of 802.11ad MAC are based on 802.11-2007 supporting for 802.11 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


doc.: IEEE 802.11-10-0498-00-00ad

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 functions1. 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


doc.: IEEE 802.11-10-0498-00-00ad

Submission

High-Level MAC Operations in 802.11ad


May 2010

doc.: IEEE 802.11-10-0498-00-00ad

Submission

Part2: Details of Enhanced MAC

41

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

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


doc.: IEEE 802.11-10-0498-00-00ad

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


doc.: IEEE 802.11-10-0498-00-00ad

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

Preamble PLCP Header PSDU Tail / Pad bits

MAC Header Frame Body FCS

MAC Header MAC Subheader HCS MSDU 1 SFCS MSDU 2 SFCSMSDU

16SFCS...

MAC HeaderMAC Subheader

With A-ACK bitmapHCS

MAC Header MSDU 1 SFCS MSDU 2 SFCSMSDU

16SFCS...

MAC SubheaderWith A-ACK bitmap

HCS

PHY frame

Normal MAC frame

VA-MADU MAC frame

VA-MADU ACK frame

Bi-directional VA-MADU with ACK

SFCS (Subframe FCS)

May 2010

doc.: IEEE 802.11-10-0498-00-00ad

Submission

Negotiation for Aggregation• 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 802.11-2007

45

Neg.

Neg.

DLS

Neg. Case 1 : communication between AP and STAs

Neg. Case 2 : communication between STA and STA


May 2010

doc.: IEEE 802.11-10-0498-00-00ad

Submission

Directivity Support

• Directivity support for 802.11ad 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


B B BCFP CFPDirectional CP1

Directional CP2

Directional CPn

Non-directional

CP

CP

Beacon period Beacon period

CP

Q-beacon 1 GT Q-beacon 2 GT Q-beacon n Q-beacon (Directional Quasi-omni beacon)GT (Guardtime)

doc.: IEEE 802.11-10-0498-00-00ad

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

AP STAs

D-Beacon 1

D-Beacon 2

D-Beacon n

Detect Beacon

D-Beacon 3

Directional CP

Association

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

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

STAA

STAB

STAA Areain BSS A

STAB Areain BSS B

AP ofBSS B

AP ofBSS A

Mutualinterference

BCFP for STA A

CPBSS A

BCFP for STA B

CPBSS B

Mutual interference

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

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


STAA

STAB

STAA Areain BSS A

STAB Areain BSS B

CAFAP ofBSS B

AP ofBSS A

BCFP for STA A

CPBSS A

STA_B inBSS B

CAF

SCAN

doc.: IEEE 802.11-10-0498-00-00ad

Submission

Enhanced Co-existence (3/4)- Co-existence for heterogeneous systems -

• There are two 60GHz unlicensed wireless system specifications in the IEEE 802 (802.15.3c and 802.11ad)

• A mechanism is proposed to facilitate coexistence between 802.15.3c and 802.11ad 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


doc.: IEEE 802.11-10-0498-00-00ad

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

B B BBSS1 Quiet Quiet



DS

BBeacon

Quiet Quiet period

Quiet

Quiet

Quiet

AP1 requests AP2 and AP3 to align their quiet periods for interference detection


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Part3: MAC Simulation Results

52

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Simulation Assumptions• Simulator : QualNet ver.4.0.1• Assumptions

1. All traffics are transmitted during CFP2. 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

Priority Traffic

High Uncompressed video and lightly compressed video

Middle Hard disk and local file transfer

Low Web browsing

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Simulation Parameters

54

Used MCSs

SC-MCS 3 1650Mbps BPSK/RS

SC-MCS 12 5280Mbps 16QAM/LDPC

Used ACK policies

No-ACK Immediate-ACK Aggregation-ACK (A-ACK)

Aggregation

Number of Subframes 8 subframes

Length of Subframe 8KB, 128KB, 1MB

IFS

MIFS 0.5us

SIFS 2.5us

BF period 0us

Simulation Time

10 minutes

Human blockage interval

-

CFP and CP timing

CFP = 9ms Beacon + CP = 1ms

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Part3-1: MAC Performance for Home Living Room

55

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Examples of Data Transmission in Home Living Room

56

• Peer-to-Peer Communication

• Video data is transmitted during CFP

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Result for Home living Room

Goodput (>1Gbps) Delay (10ms) Packet Loss

SC-MCS 12 (5280Mbps,16QAM/LDPC)

No-ACK 2.98Gbps 7.0ms 0%

Imm-ACK 2.47Gbps 11.7ms 17%

A-ACK (8KB) 2.98Gbps 6.2ms 0%

A-ACK(128KB) 2.98Gbps 5.6ms 0%

May 2010


• 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 802.11-10-0498-00-00ad

Submission

Part3-2: MAC Performance for Office Conference Room

58

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

May 2010


4.5 m

3.0 m

door

window

STA 1

STA 2

STA 3

STA 4

STA 5

STA 6

STA 7

STA 8

AP (in ceiling)

x

y

00

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 802.11-10-0498-00-00ad

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


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Result for Office Conference RoomThis 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

Goodput Delay (10ms)

Packet Loss

SC-MCS 3 (1650Mbps, BPSK/RS)

Video traffic

No-ACK 0.6Gbps 1.43ms 0%

Imm-ACK 0.6Gbps 1.26ms 0%

A-ACK (8KB) 0.6Gbps 1.48ms 0%

FTP traffic

No-ACK 51.3Mbps - 0%

Imm-ACK 12.2Mbps - 0%

A-ACK (8KB) 51.3Mbps - 0%

HTTP traffic

No-ACK 0.878Mbps 0.611s 0%

Imm-ACK 0.762Mbps 0.705s 0%

A-ACK (8KB) 0.870Mbps 0.593s 0%

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

Submission

Conclusion• 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 802.11-2007 supporting for 802.11 user experience– Enhanced MAC purposes to achieve very high throughput (>1Gbps),

support directivity, and coexist other 60GHz systems and for QoS improvement

May 2010


doc.: IEEE 802.11-10-0498-00-00ad

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

doc.: ieee 802.11-10-0498-00-00ad submission may 2010 hiroshi harada, nictslide 1 complete proposal...

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