July, 2005

Tony Pollock, NICTASlide 1

doc.: IEEE 802.15-05-0412-00-003c

Submission

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

Submission Title: [Proposed 60 GHz Channel Model and Measurement Campaign]Date Submitted: [18 July 2005]Source: [E. Skafidas, T. Pollock, C. Liu, K. Saleem ] 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 experimental setup and model parameter determination as described in document 15-05-0368-01]

Abstract: [Description of Proposed 60 GHz Channel Model and Measurement Campaign]

Purpose: [Contribution to 802.15 TG3c at July 2005 meeting in San Francisco, 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.

July, 2005

Tony Pollock, NICTASlide 2

doc.: IEEE 802.15-05-0412-00-003c

Submission

Proposed 60 GHz Channel Model and Measurement Campaign

ref doc. 15-05-0368-01-003c

July, 2005

Tony Pollock, NICTASlide 3

doc.: IEEE 802.15-05-0412-00-003c

Submission

Purpose

• Channel model sub-committee requires a common channel model for evaluation of PHY layer proposals.

Proposed 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

July, 2005

Tony Pollock, NICTASlide 4

doc.: IEEE 802.15-05-0412-00-003c

Submission

Proposed Measurement Environments

1. Corridor

2. Large Room/Theatre with LOS

3. Large Room/Theatre with NLOS

4. Typical office with LOS

5. Typical office with NLOS

6. Desktop

7. Inter Room Propagation

July, 2005

Tony Pollock, NICTASlide 5

doc.: IEEE 802.15-05-0412-00-003c

Submission

Measurement Technique

Port 1 Port 2

GPIB Interface

TransmittingAntenna

ReceivingAntenna

Short 60GHz Cable

Long 60 GHz Cable

60 GHz Propagation Channel

Vector NetworkAnalyzer

Calibration and DataCollection

Laptop computer

Swept Frequency to be 57-64 GHz

ToA and AoA measurements

July, 2005

Tony Pollock, NICTASlide 6

doc.: IEEE 802.15-05-0412-00-003c

Submission

Antenna Configurations

Measurements will be performed for:– omni directional antennas on both the

transmitter and receiver;– 21dBi directional horn antenna on the

transmitter and receiver;– mixed combination of omni directional and

21dBi directional horn antenna.

July, 2005

Tony Pollock, NICTASlide 7

doc.: IEEE 802.15-05-0412-00-003c

Submission

Antenna Configurations

• Antennas will be mounted on trails for precise positioning

• Directional measurements from an electronically steerable platform for precise angular sweeping over 3600

July, 2005

Tony Pollock, NICTASlide 8

doc.: IEEE 802.15-05-0412-00-003c

Submission

Proposed Channel Model

S-V Model11

, ,0 0

( ) ( )lKL

k l l k ll k

h t t T

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;

,k l

July, 2005

Tony Pollock, NICTASlide 9

doc.: IEEE 802.15-05-0412-00-003c

Submission

Proposed Channel Model

S-V Model with AoA extension11

,0

,,0

( , ) ( , )lKL

k l l k l k lll k

h t t T

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.

,k l

l,k l

July, 2005

Tony Pollock, NICTASlide 10

doc.: IEEE 802.15-05-0412-00-003c

Submission

Arrival TimesThe cluster and rays form a Poisson arrival process with distributions given by

1 1

, ( 1), , ( 1),

exp , 0

exp , 0

l l l l

k l k l l l k l k l

p T T T T l

p k

= cluster arrival rate;l = ray arrival rate.

Regularly spaced or mixed Poisson ray arrival times may also be observed.

July, 2005

Tony Pollock, NICTASlide 11

doc.: IEEE 802.15-05-0412-00-003c

Submission

Multipath Gains

lklklk p ,,,

, //2, 0

k l llTk lE e e

l = cluster decay factor;

= ray decay factor (cluster delay dependent)

both the clusters and rays have amplitudes which decay exponentially with time, and are characterized by,

July, 2005

Tony Pollock, NICTASlide 12

doc.: IEEE 802.15-05-0412-00-003c

Submission

Multipath Gain Distribution

• Raleigh ?

• Nakagami ?

• Rice ?

• Log-Normal ?

• ??

July, 2005

Tony Pollock, NICTASlide 13

doc.: IEEE 802.15-05-0412-00-003c

Submission

AoA Distribution

Gaussian: = standard deviation,

Von-Mises: = degree of non-isotropy,

Laplacian: = standard deviation.

Each of these can be characterized by the standard deviation of the distribution and is related to the non-isotropy parameters , , or .

2

,,( )

2k l

k l

G

f

G

, ,( ) cosk l k lf 0

,

,

2( )

k l

k lL

f

L

G L

July, 2005

Tony Pollock, NICTASlide 14

doc.: IEEE 802.15-05-0412-00-003c

Submission

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

1 2