Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

1. Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Characterization and modeling of the 60 GHz indoor channel in the office and residential environments] Date Submitted: [12 January 2006] Source: [P. Pagani, N. Malhouroux, I. Siaud, V. Guillet, Wei Li] Company [France Telecom Research and Development Division] Address [4 rue du Clos Courtel, BP 91226, F-35512 Cesson Sévigné, France] Voice:[], FAX: [], E-Mail:[] Re: [The detailed data could be found in 802.15-06-00-0027-003c] Abstract: [This contribution presents a measurement-based analysis of the characteristics of the propagation channel at 60 GHz and provides inputs for a channel model based on typical measurement files.] Purpose: [Contribution to IEEE 802.15.3c Channel Modeling sub-group] 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. P. Pagani, France Telecom

2. Characterization and modeling of the 60 GHz indoor channel in the office and residential environments P. Pagani, N. Malhouroux, I. Siaud, V. Guillet, Wei Li Contact: Wei Li Email: wei3.li@rd.francetelecom.com P. Pagani, France Telecom

3. Outline • Motivation • Propagation experiments • Path loss analysis • Wideband characterization • Tapped delay line models • Conclusion P. Pagani, France Telecom

4. Motivation • Large amount of available spectrum in the millimeter wave frequency band • IEEE 802.15.3c Task Group currently studying possible solutions for High Data Rate WPANs operating at 60 GHz • Channel modeling sub-group designing a propagation model for link level simulations and system optimization • This contribution provides complete characterization and modeling of the 60 GHz channel • Experimental approach based on extensive sounding campaign and thorough wideband anaylsis • Research work performed within the European Commission FP6 integrated project MAGNET P. Pagani, France Telecom

5. France Telecom propagation expertise • Channel measurement laboratory • Frequency domain and time domain wideband channel sounders • Large number of measurement campaigns for different frequencies (900/1800 MHz, 2 GHz, ISM and UNII bands, UWB, 60 GHz) in different environment (indoor, urban, rural, …) and different configurations (SISO, MIMO, …) • Simulation tools for propagation analysis • Propagation model based on ray-tracing and Uniform Theroy of Diffraction • Propagation models • Narrowband: GSM, DCS • Wideband: UMTS, WiFi, UWB, millimeter waves P. Pagani, France Telecom

6. The IST MAGNET project Personal Network concept Flexible PHY and MAC layer for WPANs Adaptive networks connected to WLANs, UMTS Leadership of the cluster UWB-MC Propagation studies : The UWB versus WB propagation modelling (CEPD, MASCARAA, 3GPP2 Publications : Magnet workshops WWRF, ECPS, SEE P. Pagani, France Telecom

7. Propagation experimentsChannel sounding equipment • Vector Network Analyzer measurements with 1024/528 MHz bandwidth around 60 GHz • Local measurements along a linear rail with 0.3-0.4 λ spacing • 3 types of vertically polarized horn antennas: 2 sectoral antennas (60° and 72° beamwidth) and 1 directive antenna (10° beamwidth) P. Pagani, France Telecom

8. Propagation experimentsMeasurement environments 1/3 • Residential environment: 100 m² apartment, LOS and NLOS situations • Tx: sectoral antenna • Rx: sectoral and directive antennas P. Pagani, France Telecom

9. Propagation experimentsMeasurement environments 1/3 • Pictures of the residential measurement environment, living room. • Pictures of the residential measurement environment, corridor with channel sounder. P. Pagani, France Telecom

10. E1 R1 E1 E1 R1 R1 R3 R2 R9 R11 E3 R3 R3 R2 R2 R4 R9 R9 R10 R11 R11 R12 E3 E3 R24 R4 R4 R10 R10 R12 R12 R24 R24 Propagation experimentsMeasurement environments 2/3 • Office 1 environment: office, corridor and conference room, LOS/NLOS • Tx: sectoral antenna • Rx: sectoral antenna P. Pagani, France Telecom

11. Propagation experimentsMeasurement environments 3/3 • Office 2 environment: office, laboratory and conference room, LOS/NLOS • Tx: directive antenna • Rx: sectoral antenna P. Pagani, France Telecom

12. Propagation experimentsPropagation scenarios P. Pagani, France Telecom

13. Path loss analysisPower attenuation examples 1/2: sectoral antenna • Measured path loss attenuation: Residential 1 scenario (sectoral ant.) • LOS configuration: attenuation similar to free space • NLOS configuration: more dispersed attenuation P. Pagani, France Telecom

14. Path loss analysisPower attenuation examples 2/2: directive antenna • Measured path loss attenuation: Residential 2 scenario (directive ant.) • LOS configuration: attenuation close to free space • NLOS configuration: important dispersion due to squint antenna effect P. Pagani, France Telecom

15. Path loss analysisExperimental results • Results fitted to the theoretical expression: Note: fitting procedure not applicable in some scenarios P. Pagani, France Telecom

16. Wideband characterizationAnalyzed parameters • For each measurement location, the Average Power Delay Profile P(τ) is computed from a number N of locally measured Channel Impulse Responses hn(τ) • Wideband characteristics of the 60 GHz channel assessed by statistical analysis of selected selectivity parameters: • Delay spread στ • Coherence bandwidth at n% Bc,n% • Delay window at q% Wq% • Delay interval at p dB Ip dB P. Pagani, France Telecom

17. Statistical results P. Pagani, France Telecom

18. Measurement set Selectivity Parameters Analysis Mean and Standard Deviation Typical file Measurement File Selection Tapped delay line modelsPrinciple • All measurement files are characterised in terms of selectivity parameters • For each scenario, a typical measurement file is selected, for which the selectivity parameters are close to the mean values • Typical measurement files are hence representative of an average situation in a given scenario. • The selected files are then converted to a tapped delay line with non-uniform spacing P. Pagani, France Telecom

19. Interface of Tapped Delay Line analysis tool P. Pagani, France Telecom

20. Tapped delay line modelsResult examples 2/3: residential, sectoral antenna, LOS P. Pagani, France Telecom

21. Tapped delay line modelsResult examples 2/3: residential, directive antenna, NLOS P. Pagani, France Telecom

22. Tapped delay line modelsResult examples 3/3: office, directive antenna, LOS P. Pagani, France Telecom

23. Conclusion • An extensive channel measurement campaign was presented for the indoor 60 GHz channel in the residential and office environments • In each environment, both sectoral and directive antennas were used, in LOS and NLOS configurations • Path loss parameters were extracted for a number of scenarios • Wideband characteristics were extracted through the analysis of selectivity parameters • For each identified scenario, a wideband channel model was provided in the form of a tapped delay line model based on a statistically typical measurement file • These models may be used for a realistic simulation of high data rate communication systems in the 60 GHz band • More Questions? Email: Wli3.li@francetelecom.com P. Pagani, France Telecom