Final report on link level and system level channel models - Winner

WINNER D5.4 v. 1.4
Figure 5.59: K-factor as function of distance in an A1 indoor scenario at 5.25 GHz centrefrequency.
It can be seen that in this measurement the K-factor increases from 9 to 17 dB, when the distance
increases from 0 to 150 m. Formula for the K-factor is
K = 8.7 + 0.051 d, (5.22)
where d is the distance between the BS and the MS.
Table 5.37: The 10, 50 and 90 % percentiles for the cumulative distribution function of the
narrowband K-factor (dB) for an indoor LOS environment at 5.25 GHz.
Narrowband Ricean K-factor
Percentile
Corri.-Corri.
LOS
10% 3.0
50% 12.7
90% 18.4
mean 11.5
5.4.11.2 Scenario B1
The narrowband K-factor as function of distance (D) has been estimated from measurements at 5 GHz for
LOS cases. The fitting linear equation as a function of distance needed long distance measurements data.
The slope (0.0142) of the following fitting equation (5.25) is based on measurement data obtained from
Nokia. The narrowband K-factor is given in dB as
K = 0 .0142D
+ 3
(5.23)
The K-factor increases with distance in urban microcell. Near the transmitter there are several modes
(multiple reflections from walls), which cause low K-factor. When the distance is increased, the number
of modes decrease (high-order modes have high attenuation) and K-factor increases.
5.4.11.3 Scenario B3
The Ricean K factor for scenario B3 as a function of the distance and the CDF of it are shown in Figure
5.60. The K factor decreases fast with distance inrease.
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