doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> March, 2006 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [NICTA Indoor 60 GHz Channel Measurements and Analysis update] Date Submitted: [7 March 2006] Source: [C. Liu, E. Skafidas, T. Pollock, Z. Krusevac, S. Krusevac, A. Gupta, D. Miniutti] Company [National ICT Australia Limited] Address [Level 2, 216 Northbourne Ave, Canberra, ACT 2602, Australia] Voice:[+61 2 6125 3797], FAX: [+61 2 6230 6121], E-Mail:[tony.pollock@nicta.com.au] Re: [Response to the TG3c channel model subgroup call for channel models] Abstract: [Analysis of the NICTA data for proposed 60 GHz Channel Model ref 15-06-0103-01] Purpose: [Contribution to 802.15 TG3c at March 2006 meeting in Denver, USA] 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. Tony Pollock, NICTA Tony Pollock, NICTA

doc.: IEEE 802.15-<doc#> <month year> doc.: IEEE 802.15-<doc#> March, 2006 Purpose Channel model sub-committee requires a common channel model for evaluation of PHY layer proposals Bulk of proposed applications require directional antennas Committee needs a model with AoA Require a measurement campaign to: Determine an appropriate channel model with AoA Determine the set of parameters that accurately describes the 60 GHz channel for indoor situations Tony Pollock, NICTA Tony Pollock, NICTA

Recall: Proposed Channel Model ref: 15-06-0103-00 March, 2006 Recall: Proposed Channel Model ref: 15-06-0103-00 S-V Model with AoA extension L = number of clusters; Kl = number of multipath components (number of rays) in the l-th cluster; = multipath gain coefficient of the k-th ray in the l-th cluster; Tl = arrival time of the first ray of the l-th cluster; k,l = delay of the k-th ray within the l-th cluster relative to the first path arrival time, Tl; = mean angle of arrival of l-th cluster; = angle of arrival of the k-th ray within the l-th cluster. Tony Pollock, NICTA

Recall: Model Parameters March, 2006 Recall: Model Parameters l cluster arrival rate l ray arrival rate cluster decay factor ray decay factor , , … multipath gain distribution factor(s) AoA distribution standard deviation Tony Pollock, NICTA

NICTA AoA Channel Measurements ref: 15-05-0412-00 March, 2006 NICTA AoA Channel Measurements ref: 15-05-0412-00 LOS Office environments desktops, corridors, typical office, typical open office, board room Polarization: Vertical Antenna separation: 2 – 8m Tx antenna: always fixed (omni) Rx antenna: rotated from 0 to 360 degree in 4 degree steps (<5 degree beam width) Tony Pollock, NICTA

Equipment Using Vector Network Analyzer Center frequency 60 GHz March, 2006 Equipment Using Vector Network Analyzer Center frequency 60 GHz Bandwidth 10 GHz Time resolution 0.05 ns Distance resolution 15 mm No. frequency points 400 Frequency step 25 MHz Times of average 5 Tony Pollock, NICTA

Typical Desktop medium, large sized office and cubicle March, 2006 Typical Desktop Tx Rx medium, large sized office and cubicle Typical desktop clutter Glass windows Concrete walls, wooden door Tony Pollock, NICTA

Single Directional Channel Model March, 2006 Single Directional Channel Model deconvolve Rx antenna pattern from measured data Solution to a large set of linear simultaneous equations Tony Pollock, NICTA

Cluster Identification - KDE March, 2006 Cluster Identification - KDE As measurements have very small time resolution need good cluster identification and MPC procedures Kernel Density Estimation Non parametric density estimation procedure 2D Gaussian KDE technique applied Clusters highlighted for visual MPC extraction Tony Pollock, NICTA

March, 2006 Desktop – Cubicle ns angle Tony Pollock, NICTA

Desktop - Medium Office March, 2006 Desktop - Medium Office ns angle Tony Pollock, NICTA

March, 2006 Desktop - Large Office ns angle Tony Pollock, NICTA

March, 2006 Desktop - Board Room ns angle Tony Pollock, NICTA

Preliminary Desktop Parameters March, 2006 Preliminary Desktop Parameters Due to large amounts of data (extremely small time resolution) parameter extraction is taking longer than expected Some preliminary results (identical methods to NICT analysis) Tony Pollock, NICTA

Preliminary Desktop Parameters March, 2006 Preliminary Desktop Parameters identical methods to NICT analysis (06-0113-01) 3.06 3.52 2.95 3.74 Mean excess delay spread [ns] 1.21 2.12 1.54 2.06 RMS delay spread [ns] 6 8.6 0.0539 2.025 0.3226 20.48 Board 19.47 0.053 1.625 1.136 4.166 Sm.Off. 11 8.99 0.057 0.554 3.225 4.35 Lg.Off. 8 11.32 0.054 0.606 1.1905 3.770 Number of clusters [deg] Cubicle Loc. 1/ 1/ Tony Pollock, NICTA

Remaining Work Improve Cluster and MPC selection March, 2006 Remaining Work Improve Cluster and MPC selection Extract parameters for all environments Determine distributions for all environments Determine time and angle correlation Generate model realization technique Timeline: completed before Jacksonville meeting (May) Tony Pollock, NICTA