Doc.: IEEE 802.11-14/0015r1 Submission Large-Scale Characteristics of 45 GHz Based on Channel Measurement Authors/contributors: Date: 2014-01-08 Presenter:

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Presentation transcript:

doc.: IEEE /0015r1 Submission Large-Scale Characteristics of 45 GHz Based on Channel Measurement Authors/contributors: Date: Presenter: Haiming WANG NameCompanyAddressPhone Haiming WANG SEU/CWP AN 2 Sipailou, Nanjing , China Wei HONG Jixin CHEN Shiwen HE Nianzu ZHANG Guangqi YANG January 2014 Haiming Wang, et al. (SEU/CWPAN)Slide 1

doc.: IEEE /0015r1 Submission Abstract This presentation gives large-scale characteristics of 45 GHz band based on channel measurement. January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 2

doc.: IEEE /0015r1 Submission Outline Channel Measurement Scheme –Transmission Scenarios –Channel measurement setup Large Characteristics at 45GHz band –STA-STA –AP-STA January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 3

doc.: IEEE /0015r1 Submission Transmission Scenarios Conference room Cubicle room Living room January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 4

doc.: IEEE /0015r1 Submission Conference Room January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 5

doc.: IEEE /0015r1 Submission Channel Measurement Setup January 2014 Haiming Wang, et al. (SEU/CWPAN) 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. Slide 6

doc.: IEEE /0015r1 Submission Antennas for Channel Measurement Type II: Open-ended waveguide (OEW) antenna with 6-dBi gain January 2014 Haiming Wang, et al. (SEU/CWPAN)  Type I: Horn antenna with 23.7-dBi gain Angle (degree) Pattern (dB) H-Plane E-Plane Slide 7

doc.: IEEE /0015r1 Submission Outline Channel Measurement Scheme –Transmission Scenarios –Channel measurement setup Large Characteristics at 45GHz band –STA-STA –AP-STA January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 8

doc.: IEEE /0015r1 Submission Haiming Wang, et al. (SEU/CWPAN) STA-STA (a)(b) (d) (e) Heights of Tx and Rx antennas are all 1m TR distance is from 1 m to 10 m. January 2014 (c) Slide 9 a) Tx and Rx: Horn, Co-Pol; b) Tx and Rx: Horn, Crs-Pol; c) Tx: Horn, Rx: OEW, Co-Pol d) Tx and Rx: OEW,Co-pol; e) Tx and Rx: Crs-Pol

doc.: IEEE /0015r1 Submission STA-STA January 2014 Haiming Wang, et al. (SEU/CWPAN) Freq. (GHz) Tx and Rx: Horn, Co-Pol Tx and Rx: Horn, Crs-Pol Tx: OEW, Rx: Horn, Co-Pol Tx and Rx: OEW, Co-Pol nPL 0 (dB)n n n Slide 10

doc.: IEEE /0015r1 Submission STA-STA Conclusion: –The n value decreases when the carrier frequency increases –The n value of cross-polarization is bigger than that of co- polarization. –The measured path loss is very close to the theoretical path loss in free space when Tx and Rx both use OEW antennas. –The additional loss due to cross-polarization is about 30 dB. January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 11

doc.: IEEE /0015r1 Submission AP-STA Tx Position: (10.56m, 3.00m, 2.64m) ， under the roof, the antenna direction to the center of the conference room Rx Position: (1.00m, 3.00m, 1.00m) –(10.00m, 3.00m, 1.00m) Five antenna configurations: –Tx and Rx: Horn, Co-Pol; –Tx and Rx: Horn, Crs-Pol; –Tx: OEW, Rx: Horn, Co-Pol –Tx and Rx: OEW, Co-pol; –Tx and Rx: Crs-Pol January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 12

doc.: IEEE /0015r1 Submission AP-STA January 2014 Haiming Wang, et al. (SEU/CWPAN) Additional path loss occurs due to cross-polarization The path loss is approximately unchanged when the TR distance increases (a)(b)(c) (d) (e) Slide 13

doc.: IEEE /0015r1 Submission AP-STA January 2014 Haiming Wang, et al. (SEU/CWPAN) Freq (GHz) Tx and Rx: Horn, Co-Pol Tx and Rx: Horn, Crs-Pol Tx: OEW, Rx: Horn, Co-Pol Tx and Rx: OEW, Co-Pol nPL 0 (dB)n n n Slide 14

doc.: IEEE /0015r1 Submission AP-STA Conclusion: ① The n value of the cross-polarization is bigger than that of co- polarization ② The n value is smaller when wide beamwidth antennas are used ③ The path loss is approximately unchanged when both OEW antennas are used in Tx and Rx with cross-polarization. January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 15

doc.: IEEE /0015r1 Submission Future Work Continue large-scale channel measurement in Cubicle office room and living room. Resume the small-scale channel measurement in all three transmission scenarios. Finish the channel models based on our channel measurement. The complete channel models will be available in IEEE 802 Beijing plenary session in March January 2014 Haiming Wang, et al. (SEU/CWPAN) Slide 16

doc.: IEEE /0015r1 Submission Reference [1] MIIT, The usage of GHz frequency band for mobile services in broadband wireless access systems, n , n /n /n /n / html Haiming Wang, et al. (SEU/CWPAN) January 2014 Slide 17