doc.: IEEE 802.11-12/1361r3

Submission

Channel Measurement for IEEE 802.11aj (45 GHz)

Date: 2013-4-24Authors/contributors:

Name Company Address Phone Email Haiming WANG Southeast

University (SEU) / CWPAN

2 Sipailou, Nanjing 210096, China

+86-25-5209 1653-301 (ext.)

hmwang@seu.edu.cn

Wei HONG Southeast University (SEU) / CWPAN

2 Sipailou, Nanjing 210096, China

+86-25-5209 1650

weihong@seu.edu.cn

Nianzu ZHANG Southeast University (SEU) / CWPAN

2 Sipailou, Nanjing 210096, China

+86-25-5209 1653-320 (ext.)

nzzhang@seu.edu.cn

Guangqi YANG Southeast University (SEU) / CWPAN

2 Sipailou, Nanjing 210096, China

+86-25-5209 1653-211 (ext.)

gq.yang@seu.edu.cn

Xin JIANG Southeast University (SEU) / CWPAN

2 Sipailou, Nanjing 210096, China

+86-25-5209 1653-302(ext.)

xinjiang@seu.edu.cn

Haiming Wang (SEU)Slide 1

doc.: IEEE 802.11-12/1361r3

Submission

Outline

Haiming Wang (SEU)

1. Transmission Scenario

2. Measurement Setup

3. Channel Measurement Results

Slide 2

doc.: IEEE 802.11-12/1361r3

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Transmission Scenarios

• Conference room• Cubicle room• Living room

Haiming Wang (SEU)Slide 3

doc.: IEEE 802.11-12/1361r3

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Conference Room

Haiming Wang (SEU)Slide 4

doc.: IEEE 802.11-12/1361r3

Submission

Outline

Haiming Wang (SEU)

1. Transmission Scenario

2. Measurement Setup

3. Channel Measurement Results

Slide 5

doc.: IEEE 802.11-12/1361r3

Submission

Channel Measurement Setup

Haiming Wang (SEU)Slide 6

A PC is used to not only control the rotary table with an RS-232 port but also control the signal generator and network analyzer with LAN ports.

The signal generator transmits CW signal at each frequency, then Rx power and channel frequency response are obtained by the network analyzer. The positions of Tx and Rx antennas and measured data are simultaneously recorded.

doc.: IEEE 802.11-12/1361r3

Submission

Parameters of Q-band Channel Measurement

Haiming Wang (SEU)Slide 7

Parameter Value

Frequency band 45 GHz (45. 115~45.385 GHz)

Method Signal Generator and VNA Sweep Frequency

Subcarrier Spacing 4.21875 MHz (adjustable)

Bandwidth 270 MHz (adjustable, 540, 1080 MHz)

Sweep Frequency Points 64 (128, 256)

Sweep Frequency Duration 80 ms (adjustable)

Tx Power 0 dBm (adjustable, max 10 dBm)

Cable Length 2 m at both ends

Antenna Horn antenna / Open ended waveguide antenna

Measurement Scenario Conference room (Cubicle room, Living room)

doc.: IEEE 802.11-12/1361r3

Submission

Antennas for Channel Measurement

• Type II: Open-ended waveguide (OEW) antenna with 6-dBi gain

Haiming Wang (SEU)Slide 8

-200 -150 -100 -50 0 50 100 150 200-40

-35

-30

-25

-20

-15

-10

-5

0

Angle (degree)

H-P

lane

Pat

tern

(dB

)

H-Plane @ 45GHz

Sim Result

Meas Result

-200 -150 -100 -50 0 50 100 150 200-30

-25

-20

-15

-10

-5

0

Angle (degree)

E-P

lane

Pat

tern

(dB

)

E-Plane @ 45GHz

Sim Result

Meas Result

• Type I: Horn antenna with 23.7-dBi gain

西安恒达微波技术开发公司 HD-220SGAH25标准增益喇叭天线

-60

-50

-40

-30

-20

-10

0

-90 -60 -30 0 30 60 90

角度（度）

dB

相对

电平

（）

Angle (degree)

Pat

tern

(dB

)

H-Plane

E-Plane

doc.: IEEE 802.11-12/1361r3

Submission

Power Delay Profile (PDP) of STA-STA

Haiming Wang (SEU)Slide 9

Fig. 1 STA-STA Transmission

dTR = 3.47 m, hT=hR = 1.04 m, φT =φR = 00, PT= 0 dBm

BW: 270 MHz, fc: 45 GHz

Tx Ant: Type I, Rx Ant: Type I

Fig.2 STA-STA Transmission

dTR = 3.47 m, hT = hR = 1.04 m, φT = φR = 00

PT= 0 dBm, BW: 270 MHz, fc: 45 GHz

Tx Ant: Type II; Rx Ant: Type I

,1615. .48 ns 79.8 ns n 52.s n5 s ,116 4..3 ns 117.4 ns n 7 s7 s n5.2

doc.: IEEE 802.11-12/1361r3

Submission

Power Delay Profile (PDP) of AP-STA

Haiming Wang (SEU)Slide 10

Fig. 1 AP-STA Transmission

dTR = 5.59 m, hT = 2.72m , hR = 1.04 m, φT = -150 , φR = 00

BW: 270 MHz, fc: 45 GHz

Tx Ant: Type I, Rx Ant: Type I

Fig.2 AP-STA Transmission

dTR = 5.59 m, hT = 2.72m, hR = 1.04 m, φT = -150 , φR = 00

PT= 0 dBm, BW: 270 MHz, fc: 45 GHz

Tx Ant: Type II; Rx Ant: Type I

, 225 0..2 ns 113.9 ns n 5 s7 s n8.2 ,130 6..3 ns 132.1 ns n 6 s2 s n1.7

doc.: IEEE 802.11-12/1361r3

Submission

Power Angle Profile (PAP) of STA-STA

Haiming Wang (SEU)Slide 11

Fig. 1 PAP of STA-STA Transmission

dTR = 3.47 m, hT=hR = 1.04 m,

φT =φR = 00, PT= 0 dBm

BW: 270 MHz, fc: 45 GHz

Tx Ant: Horn antenna or OEW antenna

Rx Ant: Horn antenna

0.580.23, 5., 0max

0.400.32, 21.3, max

• For horn antenna,

• For OEW antenna,

doc.: IEEE 802.11-12/1361r3

Submission

Power Angle Profile (PAP) of AP-STA

Haiming Wang (SEU)Slide 12

Fig. 1 PAP of STA-STA Transmission

hT = 2.7m , hR = 1.3 m, dTR = 5.83 m

φT = -150 , φR = 00

PT= 0 dBm

BW: 270 MHz, fc: 45 GHz

Tx Ant: Horn antenna or OEW antenna

Rx Ant: Horn antenna

0.710.74, 68.1, max

0.430.62, 33.1, max

• For horn antenna,

• For OEW antenna,

doc.: IEEE 802.11-12/1361r3

Submission

More Measurement Positions in a Conf. Room

Haiming Wang (SEU)Slide 13

Fig 1. Meas. Positions of STA-STA Fig 2. Meas. Positions of AP-STA

doc.: IEEE 802.11-12/1361r3

Submission

Statistical Parameters

Haiming Wang (SEU)Slide 14

TABLE I STA-STA TABLE II AP-STA

doc.: IEEE 802.11-12/1361r3

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Joint AoA and AoD Measurement Setup

Haiming Wang (SEU)Slide 15

A PC is used to not only control two rotary tables with two RS-232 ports but also control the signal generator and the vector network analyzer (VNA) with LAN ports.

The signal generator transmits CW signal at each frequency, then Rx power and channel frequency response are obtained by the network analyzer. The positions and angles of Tx and Rx antennas and measured data are simultaneously recorded.

doc.: IEEE 802.11-12/1361r3

Submission

PAP of STA-STA Transmission

Haiming Wang (SEU)Slide 16

doc.: IEEE 802.11-12/1361r3

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Future Works

• The 45 GHz band channel will be measured in cubicle room and living room, additionally;

• More measurement data will be obtained, which will be used for statistical channel modeling;

• Penetration losses for different kinds of walls and blockage objects will also be measured;

• Some parameters, for example penetration losses, PAP and PDP of multipath will be compared between 45 GHz and 60 GHz bands.

Haiming Wang (SEU)Slide 17

doc.: IEEE 802.11-12/1361r3

Submission

Revision History

Rev Comments Date Remark

R0 Initial version of Channel Measurement for IEEE 802.11aj (45 GHz)

12-Nov-2012

R1 1) Add more results of one-direction measurement

2) Add joint AoA and AoD measurement

23-Apr-2013

R2 1) Add revision history2) Editorial revision

23-Apr-2013

R3 Change the authors’ companies 23-Apr-2013

Haiming Wang (SEU)Slide 18

doc.: IEEE 802.11-12/1361r3

Submission

Thank you very much for your attention!

Haiming Wang (SEU)Slide 19