1. Ricean K-Factor in Office Cubicle Environment
November 2003
Ricean K-Factor in Office Cubicle Environment
David Cheung, Cliff Prettie, Qinghua Li, Jeng Lung
Intel Corporation
November 2003
David Cheung, Intel

2. Measurement Setup and Analysis
Office cubicle environment
7 different STA locations, 3-19m distance, 2 in hard-wall conference room
11 different sets of data
Each set contains 1369 different antenna positions, 37x37 array with ½” spacing
Channel transfer function spans 2-8 GHz
K-factor based on strongest average tap in 100 MHz ( GHz and GHz) using moment-method estimation [1]
David Cheung, Intel

3. K-Factors for Various Locations
Set #
Perspective
STA Location
Distance
(m)
LOS/
NLOS
K factor
(dB) 1 AP S1 3
LOS
-3.56
STA
-6.24 2 S2 19 -∞ S4 11
-3.86 4 S5 13 5
S12
-4.18 6
S13 12
-1.11
STA, conf. 7
S20
8.5
-2.23
-5.71
David Cheung, Intel

4. Measurement Locations
David Cheung, Intel

5. Conclusions
Ricean K-factor is small (< -1 dB) in office cubicle environment
Small K-factor attributed to large number of scatterers and 10 ns time resolution
Many paths have excess delay of <10 ns
These paths combine in first tap
David Cheung, Intel

6. References
[1] Greenstein, Michelson, and Erceg, “Moment-Method Estimation of the Ricean K-Factor,” IEEE Communications Letters, Vol. 3, No. 6, June 1999, pp
David Cheung, Intel