March 2005 Slide 1 doc.: IEEE 802.15-05/133r0 Submission Project: IEEE P802.15 Working Group for Wireless Personal Area Networks Submission Title: [Status.

March 2005March 2005

Slide Slide 11

doc.: doc.: IEEE 802.15-05/133r0IEEE 802.15-05/133r0

SubmissioSubmissionn

Project: IEEE P802.15 Working Group for Wireless Personal Area NetworksProject: IEEE P802.15 Working Group for Wireless Personal Area Networks

Submission Title: [Status report of the subgroup on channel modeling]Date Submitted: [March 16, 2005]Source: (1) Bruce Bosco, Motorola (2) Celestino Corral, Freescale (3) Shahriar Emami, Freescale (4) Gregg Levin, BridgeWave (5) Abbie Mathew, NewLANS Purpose: [Contribution to 802.15 SG3c at March 2005 meeting in Atlanta, GA]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.

Abbie Mathew, NewLANSAbbie Mathew, NewLANS


Slide Slide 22



ObjectiveObjective

Develop channel models based on applications Develop channel models based on applications submitted in response to the CFA.submitted in response to the CFA.



Slide Slide 33



StatusStatus

Nine conference calls to dateNine conference calls to date ParticipationParticipation

• 15 members in subgroup15 members in subgroup• Average of 5 per conference callAverage of 5 per conference call• 3 minimum (in early days)3 minimum (in early days)• 8 maximum (at the last conference call)8 maximum (at the last conference call)

Tasks completedTasks completed• Classified applicationsClassified applications• Reviewed 59 papers and classified themReviewed 59 papers and classified them

Refer to document 148 for detailsRefer to document 148 for details

• Classified operating environmentClassified operating environment• Classified channel modelsClassified channel models



Slide Slide 44



Profile of ApplicationsProfile of Applications

## Description of ApplicationsDescription of Applications OutdoorOutdoor Document NumberDocument Number

11Vertically connected wireless link, Vertically connected wireless link, fixed wireless accessfixed wireless access

LOS, simplexLOS, simplex Data rate: ?Data rate: ? Range: ≤ 33 mRange: ≤ 33 m Analog signalAnalog signal

6, 92, 352, 6496, 92, 352, 649

22Fixed wireless access, distribution in Fixed wireless access, distribution in stadiums, apartments, etc.stadiums, apartments, etc.

LOSLOS P2P, P2MPP2P, P2MP Data rate: 156 Mbps to ≥ 1 GbpsData rate: 156 Mbps to ≥ 1 Gbps Range: 220 m to 1 kmRange: 220 m to 1 km

118, 153, 352118, 153, 352

33 Inter-vehicle communicationInter-vehicle communication

LOS, FDDLOS, FDDP2PP2PData rate: 1.25 Gbps duplexData rate: 1.25 Gbps duplexRange: 10 mRange: 10 m

19, 35219, 352


.. continued .... continued ..


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Profile of ApplicationsProfile of Applications

## Description of ApplicationsDescription of Applications IndoorIndoor Document NumberDocument Number

44

Gigabit Ethernet link, wireless Gigabit Ethernet link, wireless IEEE1394, wireless USBIEEE1394, wireless USB

Wireless home video server Wireless home video server connected to HDTV, PC and connected to HDTV, PC and other video devicesother video devices

LOS, FDDLOS, FDD Data rate: 400 Mbps to 3.2 GbpsData rate: 400 Mbps to 3.2 Gbps Range: ≤ 17 mRange: ≤ 17 m

19, 348, 351, 653, 19, 348, 351, 653, 665665

55

Connecting multimedia devices Connecting multimedia devices (wireless home link), ad-hoc (wireless home link), ad-hoc meeting, heavy content download, meeting, heavy content download, distribution systemdistribution system

LOS, TDDLOS, TDD Data rate: ≥ 1 GbpsData rate: ≥ 1 Gbps Range: ~ 10mRange: ~ 10m

97, 98, 118, 153, 97, 98, 118, 153, 155, 156, 351, 352, 155, 156, 351, 352, 514514

66Small office/meeting scenario, Small office/meeting scenario, general office applications, general office applications, PowerPoint applicationsPowerPoint applications

LOS and NLOSLOS and NLOS OFDMOFDM Data Rate: ≤ 200 MbpsData Rate: ≤ 200 Mbps Range: 2 to 4 mRange: 2 to 4 m Space diversitySpace diversity

141141



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Operating EnvironmentOperating EnvironmentEnvironmentEnvironment ModelModel

IndoorIndoor

EnterpriseEnterprise

Convention centerConvention center AA

Open officeOpen office AA

Intra closed officeIntra closed office BB

Inter closed officeInter closed office CC

WarehouseWarehouse AA

ResidentialResidentialIntra closed roomIntra closed room BB

Inter closed roomInter closed room CC

OutdoorOutdoor

EnterpriseEnterpriseCampus, metroCampus, metro DD

StadiumStadium DD

ResidentialResidential

Home-to-homeHome-to-home DD

Utility pole-to-homeUtility pole-to-home DD

MDU vertical linkMDU vertical link DD

MobileMobileVehicle-to-vehicleVehicle-to-vehicle EE

Vehicle-to-fixed stationVehicle-to-fixed station EE




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Operating EnvironmentOperating Environment


EnvironmentEnvironment ModelModel

IndoorIndoor


Convention centerConvention center

AAOpen officeOpen office

WarehouseWarehouse

Intra closed officeIntra closed officeBB

ResidentialResidential Intra closed roomIntra closed room

EnterpriseEnterprise Inter closed officeInter closed officeCC

ResidentialResidential Inter closed roomInter closed room

OutdoorOutdoor

EnterpriseEnterpriseCampus, metroCampus, metro

DD

StadiumStadium


Home-to-homeHome-to-home

Utility pole-to-homeUtility pole-to-home

MDU vertical linkMDU vertical link

MobileMobileVehicle-to-vehicleVehicle-to-vehicle

EEVehicle-to-fixed stationVehicle-to-fixed station


Slide Slide 88



Model ClassificationModel Classification

ModelModel MultipathMultipath Obstruction in LOSObstruction in LOS DopplerDoppler

AA Light to moderateLight to moderate Humans, walls, etc.Humans, walls, etc. Some: ≤ 3 m/sSome: ≤ 3 m/s

BB HeavyHeavy Humans, walls, etc.Humans, walls, etc. Some: ≤ 3 m/sSome: ≤ 3 m/s

CC Very heavyVery heavy Humans, walls, etc.Humans, walls, etc. Some: ≤ 3 m/sSome: ≤ 3 m/s

DD Very light to moderateVery light to moderate Atmospheric particulates, Atmospheric particulates, glass, etc.glass, etc. NoneNone

EE Moderate to heavyModerate to heavy Atmospheric particulates, Atmospheric particulates, walls, etc.walls, etc.

Heavy, speed ≤ 95 Heavy, speed ≤ 95 km/hkm/h

IndoorIndoor

OutdoorOutdoor



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Qualification of Data RateQualification of Data Rate

MAC Sublayer

PLCP Sublayer

PMD Sublayer

MAC SAP

PHY SAP

PMD SAP

MAC Sublayer

PLCP Sublayer

PMD Sublayer

MAC SAP

PHY SAP

PMD SAP

Air Interface

Transmitter Receiver

TDD

Specify if the data rate is at the PHY SAP or PMD SAPSpecify if the data rate is at the PHY SAP or PMD SAP Any reference to data rate will assume simplex link as existing Any reference to data rate will assume simplex link as existing

802.15.3 MAC only supports TDD802.15.3 MAC only supports TDD



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ReviewersReviewers

ModelModel ReviewersReviewers

AA

Shahriar EmamiShahriar Emami Abbie MathewAbbie MathewBB

CC

DD Sean CahillSean Cahill Eli PasternakEli Pasternak

EE Bruce BoscoBruce Bosco Celestino CorralCelestino Corral

IndoorIndoor

OutdoorOutdoor


Brief on 802.11p

Will be presented by Gregg Levin


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Models A, B, & CModels A, B, & C

A: Convention center, ware houseA: Convention center, ware house B: ResidentialB: Residential C: OfficeC: Office

Shahriar Emami, FreescaleShahriar Emami, Freescale

Indoor EnvironmentIndoor Environment


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Measurements in a library verify one cluster S-V model Measurements in a library verify one cluster S-V model (BROADWAY).(BROADWAY).

Measurements in an office environment verify S-V model Measurements in an office environment verify S-V model (Samsung).(Samsung).

Other measurements have seen multi or single cluster structure in Other measurements have seen multi or single cluster structure in S-V model. S-V model.

Proposed models include, single and multi cluster S-V model, Proposed models include, single and multi cluster S-V model, modified S-V and frequency domain approach.modified S-V and frequency domain approach.


FindingsFindings


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There is a fair amount of published work on 60 GHz indoor channel There is a fair amount of published work on 60 GHz indoor channel modeling.modeling.

Measurement environments include room, library and office.Measurement environments include room, library and office.

Majority of published work recommend some form of S-V model.Majority of published work recommend some form of S-V model.

There is no published results for convention center or ware houses There is no published results for convention center or ware houses environments.environments.


ConclusionsConclusions


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1)1) BROADWAY functional system parameter descriptionBROADWAY functional system parameter description

2)2) BROADWAY study "the 60 GHz channel and its modeling"BROADWAY study "the 60 GHz channel and its modeling"

3)3) Compound statistical model for 60 GHz channelCompound statistical model for 60 GHz channel

4)4) MEDIAN 60 GHz wideband indoor radio channel measurements MEDIAN 60 GHz wideband indoor radio channel measurements and modeland model

5)5) Analysis of 60 GHz band indoor wireless channels with channel Analysis of 60 GHz band indoor wireless channels with channel configurationconfiguration

6)6) Indoor channel modeling at 60 GHz for wireless LAN applicationIndoor channel modeling at 60 GHz for wireless LAN application

7)7) A statistical model for the mmW indoor radio channelA statistical model for the mmW indoor radio channel

8)8) Wireless broadband multimedia communications in mmW: Wireless broadband multimedia communications in mmW: frequency domain simulation of the frequency selective radio frequency domain simulation of the frequency selective radio channelchannel


ReferencesReferences


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Models DModels D


ContentsContents

Operating EnvironmentOperating Environment Outdoor Channel PhenomenaOutdoor Channel Phenomena Oxygen effectsOxygen effects Rain Effects and Prediction modelsRain Effects and Prediction models Notes on Multipath phenomenaNotes on Multipath phenomena ReferencesReferences


Slide Slide 1616



Models DModels D


Operating EnvironmentOperating Environment

EnvironmentEnvironment ModelModel

IndoorIndoor


Convention centerConvention center

AAOpen officeOpen office

WarehouseWarehouse

Intra closed officeIntra closed officeBB

ResidentialResidential Intra closed roomIntra closed room

EnterpriseEnterprise Inter closed officeInter closed officeCC

ResidentialResidential Inter closed roomInter closed room

OutdoorOutdoor

EnterpriseEnterpriseCampus, metroCampus, metro

DD

StadiumStadium


Home-to-homeHome-to-home

Utility pole-to-homeUtility pole-to-home

MDU vertical linkMDU vertical link

MobileMobileVehicle-to-vehicleVehicle-to-vehicle

EEVehicle-to-fixed stationVehicle-to-fixed station


Slide Slide 1717



Models DModels D


Previous Studies & ReferencesPrevious Studies & References

BROADWAY studied 60 GHz for HIPERLAN outdoor propagation BROADWAY studied 60 GHz for HIPERLAN outdoor propagation effectseffects

CRABS – outdoor millimetric wave prop. studyCRABS – outdoor millimetric wave prop. study ITU CCIR reports on propagation through the atmosphereITU CCIR reports on propagation through the atmosphere Xu, Rappaport, Kukshia and Izadpanah 802.161pc-00_12: 42GHz in Xu, Rappaport, Kukshia and Izadpanah 802.161pc-00_12: 42GHz in

campus with obstructions; 200m-600m found multipathcampus with obstructions; 200m-600m found multipath


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Models DModels D


General CharacteristicsGeneral Characteristics

Expected high bit rates, typical >1 GbpsExpected high bit rates, typical >1 Gbpso Otherwise current 802.11 802.15 802.16 will be more Otherwise current 802.11 802.15 802.16 will be more

cost effectivecost effective Expected higher gain antenna to cover distanceExpected higher gain antenna to cover distance

o Directional antennas are less sensitive to multipathDirectional antennas are less sensitive to multipath At large distance (> 200 m) oxygen absorption and rain At large distance (> 200 m) oxygen absorption and rain

scattering/depolarization become significantscattering/depolarization become significant


Slide Slide 1919



Models DModels D


Channel Model Channel Model PhenomenaPhenomena

Basic free-space loss (Lfs)Basic free-space loss (Lfs) Obstructions blockage (Lb)Obstructions blockage (Lb) Multipath fading/delay spread Multipath fading/delay spread Precipitation link loss by scattering and depolarization, Precipitation link loss by scattering and depolarization,

dominated by rain effects, (dominated by rain effects, (R)R) Oxygen absorption (Oxygen absorption (O )O ) Channel loss for distance “d” (all in dB):Channel loss for distance “d” (all in dB): L (d) = 20 log[l/(4*p*d)] + (L (d) = 20 log[l/(4*p*d)] + (O + O + R )*dR )*d Note the exponential-distance effect of oxygen and rainNote the exponential-distance effect of oxygen and rain


Slide Slide 2020



Models DModels D


Oxygen Absorption & Rain AttenuationOxygen Absorption & Rain Attenuation

C O 2

C O 2

O 3

O 2

O 2

H O2

H O2

H O2

H O , C O2 2

H O2

H O2

H O2

D R IZ Z L E (0 .2 5 m m /h r)

M illimeter

10 GHz3 cm

0.1 dB/Km

1 dB/Km

10 dB/Km

100 dB/Km

1,000 dB/Km

100 GHz3 mm

1 THz0.3 mm

10 THz30 m

100 THz3 m

1,000 THz0.3 m

Submillimeter Infrared Visible

H E AV Y R A IN (2 5 m m /h r)

V is ib i lity 5 0 m F O G (0 .1 g /m )3

E X C E S S IV E R A I N (1 5 0 m m /h r)

57-66 GHz57-66 GHz(12-16 dB/km)(12-16 dB/km)

FSO (30-400 THz)FSO (30-400 THz)


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Models DModels D


Oxygen Absorption Details (ITU)Oxygen Absorption Details (ITU)


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Models DModels D


Oxygen Absorption Details (ITU)Oxygen Absorption Details (ITU)

Peak – 15dB/km at 60 GHzPeak – 15dB/km at 60 GHz About 12dB/km at edge of FCC bandAbout 12dB/km at edge of FCC band Decreases with altitude, air temperature, falling Decreases with altitude, air temperature, falling

barometric pressurebarometric pressure Long range links should use band edge and LANs Long range links should use band edge and LANs

should sue the centershould sue the center


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Models DModels D


Rain Zones In The Americas (ITU)Rain Zones In The Americas (ITU)

Example * 60 GHz Max. Link

Distances A = 840mB = 800mC = 775mD = 745mE = 725mF = 690mK = 625mM = 555mN = 480m

* 141 dB link budget 14 dB/km oxygen loss 99.99% availability


Slide Slide 2424



Models DModels D


Rain Attenuation (dB/Km)Rain Attenuation (dB/Km)

Rain Zone Polarization1% 0.3% 0.1% 0.03% 0.01% 0.003% 0.001%

Horizontal 0.1 0.6 1.3 2.7 3.9 6.3 9.1Vertical 0.1 0.5 1.1 2.4 3.6 5.6 8.2Horizontal 0.4 1.3 1.8 3.1 5.5 8.7 12.4Vertical 0.4 1.1 1.6 2.8 5.0 7.9 11.2Horizontal 0.5 1.7 2.7 4.3 6.6 10.4 15.5Vertical 0.5 1.5 2.4 3.9 6.0 9.4 14.0Horizontal 1.3 2.4 3.9 5.9 8.0 11.4 15.5Vertical 1.2 2.2 3.6 5.3 7.3 10.3 14.0Horizontal 0.5 1.5 3.1 5.5 9.1 15.2 23.6Vertical 0.4 1.3 2.8 5.0 8.2 13.7 21.3Horizontal 1.1 2.4 3.9 6.6 11.1 19.1 25.8Vertical 1.0 2.2 3.6 6.0 10.0 17.2 23.3Horizontal 1.0 2.3 5.5 9.4 15.5 23.6 31.7Vertical 0.9 2.1 5.0 8.5 14.0 21.3 28.5Horizontal 2.2 5.1 9.1 14.9 21.7 30.4 36.9Vertical 2.0 4.6 8.2 13.4 19.5 27.4 33.2Horizontal 2.7 6.6 13.3 22.2 30.4 41.9 51.6Vertical 2.4 6.0 12.0 20.0 27.4 37.7 46.3

Percentage of time rain attenuation exceeds x dB per km

N

K

M

E

F

A

B

C

D


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Models DModels D


Rain Loss Prediction ModelsRain Loss Prediction Models

ITUITUo Figure rain statistics from Rep 563-4Figure rain statistics from Rep 563-4o Figure attenuation from Rep. 721-3Figure attenuation from Rep. 721-3

CraneCraneo More detailed statisticsMore detailed statisticso More refined rain zonesMore refined rain zoneso Computerized version availableComputerized version availableo Available for North America onlyAvailable for North America onlyo Crane appears to be more pessimistic than ITUCrane appears to be more pessimistic than ITU


Slide Slide 2626



Models DModels D


60 GHz LOS60 GHz LOS The space between two radios separated distance D shall be The space between two radios separated distance D shall be

free of obstacles within a radius R (“First Fresnel Zone”)free of obstacles within a radius R (“First Fresnel Zone”)

R (at mid point between radios) = 0.5 * (D * wavelength)R (at mid point between radios) = 0.5 * (D * wavelength)1/21/2

For more details: BROADWAY-WP1-D2For more details: BROADWAY-WP1-D2

RR

DD

Path Length Path Length (meters)(meters)

Minimum Clearance Minimum Clearance (meters)(meters)

250250 0.560.56

500500 0.790.79

750750 0.970.97


Slide Slide 2727



Models DModels D

60 GHz NLOS Path Tools60 GHz NLOS Path Tools


Slide Slide 2828



Models DModels D

60GHz LOS Multipath Phenomena60GHz LOS Multipath Phenomena

Negligible under no-precipitation if directional antennas are used Negligible under no-precipitation if directional antennas are used

and the first Fresnel zone is unobstructedand the first Fresnel zone is unobstructed

Reflections from objects and ground caused multipath as reported Reflections from objects and ground caused multipath as reported

by BROADWAY, CRABS and Xu.by BROADWAY, CRABS and Xu.

Outdoor short-range applications need multipath model. Since S_V Outdoor short-range applications need multipath model. Since S_V

is general enough, it could be adopted for these applications.is general enough, it could be adopted for these applications.


Slide Slide 2929



Models DModels D


ITU, Reports of the CCIR, 1990, Annex to Volume V, “Propagation ITU, Reports of the CCIR, 1990, Annex to Volume V, “Propagation in Non-Ionized Media”in Non-Ionized Media”

BROADWAY WP1D2 2001: “Functional System Parameters BROADWAY WP1D2 2001: “Functional System Parameters Description”, including Annex 1 and Annex 2.Description”, including Annex 1 and Annex 2.

CRAB D3P1B 1999: “Propagation Planning Procedure For LMDS”CRAB D3P1B 1999: “Propagation Planning Procedure For LMDS”

Xu, Rappaport, Kukshia and Izadpanah:Spatial and Temporal Xu, Rappaport, Kukshia and Izadpanah:Spatial and Temporal Characteristics of 60-GHzCharacteristics of 60-GHz

Indoor Channels - 802.161pc-00_12Indoor Channels - 802.161pc-00_12


Slide Slide 3030



Model EModel E

Vehicle to vehicleVehicle to vehicle Vehicle to fixed-stationVehicle to fixed-station Moderate to large multipath effects Moderate to large multipath effects Potentially non LOSPotentially non LOS Doppler effectsDoppler effects

Outdoor Mobile EnvironmentOutdoor Mobile Environment

Bruce Bosco, MotorolaBruce Bosco, Motorola


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Model EModel E

For outdoor, city environments, disregarding effects from motion:For outdoor, city environments, disregarding effects from motion:

1.1. In general, if streets are empty (no major reflection sources or In general, if streets are empty (no major reflection sources or obstructions) there is a tendency that the delay parameter values obstructions) there is a tendency that the delay parameter values will increase with increasing street width.will increase with increasing street width.

2.2. City streets do not normally represent a severe multipath situationCity streets do not normally represent a severe multipath situation3.3. The dimensions of a city square, typically being larger than the city The dimensions of a city square, typically being larger than the city

streets, results in much larger dispersion.streets, results in much larger dispersion.4.4. A road tunnel represents a very homogeneous situation and has A road tunnel represents a very homogeneous situation and has

many similarities to the city street environment.many similarities to the city street environment.5.5. A parking garage represents a bad multipath situation because of A parking garage represents a bad multipath situation because of

the large dimensions and the relatively smooth surfaces creating the large dimensions and the relatively smooth surfaces creating strong reflections.strong reflections.

FindingsFindings




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Model EModel E

For outdoor, city environments, disregarding effects from motion:For outdoor, city environments, disregarding effects from motion:

6.6. A decrease on the wall roughness (as for example a shopping A decrease on the wall roughness (as for example a shopping street with many windows) will lead to an increase of the delay street with many windows) will lead to an increase of the delay (which is due to higher reflections from the walls) of about 10 ns.(which is due to higher reflections from the walls) of about 10 ns.

7.7. The presence of trees in the street decreases the values by 3 to 4 The presence of trees in the street decreases the values by 3 to 4 ns (assuming that the direct ray is not obstructed), which is not ns (assuming that the direct ray is not obstructed), which is not very significant.very significant.

8.8. An increase of the street width will augment the values of the An increase of the street width will augment the values of the parameters of the impulse response.parameters of the impulse response.

Reference: [1]Reference: [1]

FindingsFindings



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Model EModel E

Findings: GeneralFindings: General


1)1) The 60 GHz channel can be modeled as a received waveform that The 60 GHz channel can be modeled as a received waveform that is a superposition of three components.is a superposition of three components. Propagation along a line of sight path.Propagation along a line of sight path. A path reflected from the road surface.A path reflected from the road surface. Paths from the large number of reflectors and scatters in vicinity of Paths from the large number of reflectors and scatters in vicinity of

the road. the road. Model “proved” through “extensive simulations”.Model “proved” through “extensive simulations”. Reference: [2]Reference: [2]

2)2) The statistical evaluation of extensive field measurements at 60The statistical evaluation of extensive field measurements at 60 GHz showed that the channel behavior can be described by a GHz showed that the channel behavior can be described by a Rice/Raleigh lognormal process.Rice/Raleigh lognormal process. This process describes multipath effects as well as shadowing by This process describes multipath effects as well as shadowing by

obstacles.obstacles. Reference: [3]Reference: [3]



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Model EModel E

Findings: GeneralFindings: General


3)3) A more realistic channel can be realized by combining a two-path A more realistic channel can be realized by combining a two-path model with addition multipath propagation. model with addition multipath propagation. Range is substantially reduced if LOS is obstructed by trees , Range is substantially reduced if LOS is obstructed by trees ,

buildings, etc. buildings, etc. The minima of the two-path model are filled up by the multipath The minima of the two-path model are filled up by the multipath

signal.signal. Reference [4], [5]Reference [4], [5]

4)4) A realistic channel model can be developed using a deterministic A realistic channel model can be developed using a deterministic approach. approach. For LOS conditions, only two factors are needed to predict the For LOS conditions, only two factors are needed to predict the

channel model: Rice-factor and the variance of the antenna height channel model: Rice-factor and the variance of the antenna height fluctuation. fluctuation.

Reference [6] Reference [6]


Slide Slide 3535



Model EModel E

ConclusionsConclusions


1)1) There are some publications and models for 60 GHz There are some publications and models for 60 GHz mobile applications.mobile applications.

2)2) Models and measured data exists for relative vehicle Models and measured data exists for relative vehicle speeds on the order of 108 Km/hr.speeds on the order of 108 Km/hr.

3)3) Path loss models should be applicable.Path loss models should be applicable.

4)4) Data related modeling may or may not scale – data Data related modeling may or may not scale – data rates in referenced models were in the range of Kbps to rates in referenced models were in the range of Kbps to ~ 10s Mbps…~ 10s Mbps…


Slide Slide 3636



Model EModel E



1)1) BROADWAY study "the 60 GHz channel and its modeling“BROADWAY study "the 60 GHz channel and its modeling“

2)2) Analysis of a digital modem for continuous phase CDMA terrestrial Analysis of a digital modem for continuous phase CDMA terrestrial mobile radiomobile radio

3)3) Computer aided design and evaluation of mobile radio local area Computer aided design and evaluation of mobile radio local area networks in RTI/IVHS environmentnetworks in RTI/IVHS environment

4)4) Channel modeling of short range radio links at 60 GHz for mobile Channel modeling of short range radio links at 60 GHz for mobile intervehicle communicationintervehicle communication

5)5) Propagation characteristics of short range radio links at 60 GHz Propagation characteristics of short range radio links at 60 GHz for mobile intervehicle communicationfor mobile intervehicle communication

6)6) A new deterministic/stochastic approach to model the intervehicle A new deterministic/stochastic approach to model the intervehicle channel at 60 GHzchannel at 60 GHz


Slide Slide 3737



Brief on 802.11pBrief on 802.11p

Purpose: Amendment to IEEE 802.11 to support Purpose: Amendment to IEEE 802.11 to support vehicular communications including rail and marine.vehicular communications including rail and marine.

Scope:Scope:o Range: Up to 1000 mRange: Up to 1000 mo Speed: Up to 200 km/hSpeed: Up to 200 km/ho Band: 5.850 - 5.925 GHz in North AmericaBand: 5.850 - 5.925 GHz in North Americao Data rates: Up to 54 Mb/sData rates: Up to 54 Mb/s

Example ApplicationsExample Applicationso Intersection collision warningIntersection collision warningo Stopped vehicle hazard warningStopped vehicle hazard warningo Emergency vehicle approach warningEmergency vehicle approach warningo Work zone warning.Work zone warning.o Road hazard warning.Road hazard warning.

802.11p PAR802.11p PAR

Celestino Corral, FreescaleCelestino Corral, Freescale


Slide Slide 3838




ASTM International Standard E2213-03.ASTM International Standard E2213-03. ISO TC204/WG15 wide area communication is working ISO TC204/WG15 wide area communication is working

on ISO CD 21215 (CALM M5); 802.11p structured so as on ISO CD 21215 (CALM M5); 802.11p structured so as not to overlap with this effort.not to overlap with this effort.

IEEE 802.20 differentiator:IEEE 802.20 differentiator:o Spot or narrow zone coverage.Spot or narrow zone coverage.

o Different frequency band.Different frequency band.

o Target safety related transportation application at very high data Target safety related transportation application at very high data rates up to 27 or 54 Mbps.rates up to 27 or 54 Mbps.

Projects With Similar ScopeProjects With Similar Scope



Slide Slide 3939




IEEE 802.11p, like ASTM International Standard E2213-IEEE 802.11p, like ASTM International Standard E2213-03 is based on the IEEE 802.11a physical layer.03 is based on the IEEE 802.11a physical layer.

IEEE 802.11a physical layer is based on OFDM and IEEE 802.11a physical layer is based on OFDM and designed for quasi-static environment.designed for quasi-static environment.

Assumed channel models are similar to those used for Assumed channel models are similar to those used for IEEE 802.11a. (No 802.11p specific channel models IEEE 802.11a. (No 802.11p specific channel models have been found.)have been found.)

Challenge for 802.11p is mobility. For very short Challenge for 802.11p is mobility. For very short messages, 802.11a can handle channel.*messages, 802.11a can handle channel.*

IEEE 802.11p SpecificsIEEE 802.11p Specifics


* S. Sibecas, C. A. Corral, S. Emami and G. Stratis, “On the suitability of 802.11a/RA for high-mobility * S. Sibecas, C. A. Corral, S. Emami and G. Stratis, “On the suitability of 802.11a/RA for high-mobility DSRC,” VTC 2002, vol. 1, pp. 229 - 234.DSRC,” VTC 2002, vol. 1, pp. 229 - 234.


Slide Slide 4040




Key differentiators as related to SG3c:Key differentiators as related to SG3c:o Use of IEEE 802.15 MACUse of IEEE 802.15 MAC

o Different frequency bandDifferent frequency band

o Higher data ratesHigher data rates

For large data downloads to a stationary vehicle, simply For large data downloads to a stationary vehicle, simply form piconet with vehicle (no mobility).form piconet with vehicle (no mobility).

In application spaces considered, 802.11p meets In application spaces considered, 802.11p meets requirements and has support. Activity by SG3c along requirements and has support. Activity by SG3c along these lines will overlap with 11p and must be approved these lines will overlap with 11p and must be approved by Excom.by Excom.

RecommendationsRecommendations



Slide Slide 4141



Next Action ItemsNext Action Items

Review channel model papersReview channel model papers Simulate models in mathlabSimulate models in mathlab Develop a channel model documentDevelop a channel model document Review cycleReview cycle Submit at IEEE meeting in Garden Grove in Submit at IEEE meeting in Garden Grove in

SeptemberSeptember


Nine months effortNine months effort


Slide Slide 4242



Call For ParticipationCall For Participation

Request your participation – join us!Request your participation – join us! Next weekly meeting is on March 21,2005, Next weekly meeting is on March 21,2005,

MondayMonday Dial-in number: +(641) 497-7100Dial-in number: +(641) 497-7100 Access code: 657719#Access code: 657719# TimeTime

• UTC/GMT: 1900 hoursUTC/GMT: 1900 hours• Eastern Standard Time: 1400 hoursEastern Standard Time: 1400 hours• Mountain Time: 1200 hoursMountain Time: 1200 hours• Pacific Standard Time: 1100 hoursPacific Standard Time: 1100 hours• Japan, South Korea: 0400 hours, +1 dayJapan, South Korea: 0400 hours, +1 day



Slide Slide 4343



Time For Future Conference CallsTime For Future Conference CallsUnited States - Massachusetts

United States - Arizona

United States - California

Japan

Mon 1/24/2005 5:00 AM Mon 1/24/2005 3:00

AM Mon 1/24/2005 2:00

AM Mon 1/24/2005 7:00

PM

Mon 1/24/2005 6:00 AM Mon 1/24/2005 4:00

AM Mon 1/24/2005 3:00

AM Mon 1/24/2005 8:00

PM

Mon 1/24/2005 7:00 AM Mon 1/24/2005 5:00

AM Mon 1/24/2005 4:00

AM Mon 1/24/2005 9:00

PM

Mon 1/24/2005 8:00 AM Mon 1/24/2005 6:00

AM Mon 1/24/2005 5:00

AM Mon 1/24/2005 10:00

PM

Mon 1/24/2005 9:00 AM Mon 1/24/2005 7:00

AM Mon 1/24/2005 6:00

AM Mon 1/24/2005 11:00

PM

Mon 1/24/2005 10:00 AM Mon 1/24/2005 8:00

AM Mon 1/24/2005 7:00

AM Tue 1/25/2005 12:00

AM

Mon 1/24/2005 11:00 AM Mon 1/24/2005 9:00

AM Mon 1/24/2005 8:00

AM Tue 1/25/2005 1:00

AM

Mon 1/24/2005 12:00 PM Mon 1/24/2005 10:00

AM Mon 1/24/2005 9:00

AM Tue 1/25/2005 2:00

AM

Mon 1/24/2005 1:00 PM Mon 1/24/2005 11:00

AM Mon 1/24/2005 10:00

AM Tue 1/25/2005 3:00

AM

Mon 1/24/2005 2:00 PM Mon 1/24/2005 12:00

PM Mon 1/24/2005 11:00

AM Tue 1/25/2005 4:00

AM

Mon 1/24/2005 3:00 PM Mon 1/24/2005 1:00

PM Mon 1/24/2005 12:00

PM Tue 1/25/2005 5:00

AM

Mon 1/24/2005 4:00 PM Mon 1/24/2005 2:00

PM Mon 1/24/2005 1:00

PM Tue 1/25/2005 6:00

AM

Mon 1/24/2005 5:00 PM Mon 1/24/2005 3:00

PM Mon 1/24/2005 2:00

PM Tue 1/25/2005 7:00

AM

Mon 1/24/2005 6:00 PM Mon 1/24/2005 4:00

PM Mon 1/24/2005 3:00

PM Tue 1/25/2005 8:00

AM

Mon 1/24/2005 7:00 PM Mon 1/24/2005 5:00

PM Mon 1/24/2005 4:00

PM Tue 1/25/2005 9:00

AM

Mon 1/24/2005 8:00 PM Mon 1/24/2005 6:00

PM Mon 1/24/2005 5:00

PM Tue 1/25/2005 10:00

AM

Mon 1/24/2005 9:00 PM Mon 1/24/2005 7:00

PM Mon 1/24/2005 6:00

PM Tue 1/25/2005 11:00

AM

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March 2005 Slide 1 doc.: IEEE 802.15-05/133r0 Submission Project: IEEE P802.15 Working Group for Wireless Personal Area Networks Submission Title: [Status.

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