16.03.2015 Views

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

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

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

WINNER D5.4 v. 1.4<br />

BS,<br />

MS,<br />

σ φ<br />

σ ϕ<br />

10% 2.7 4.5 10.2 6.3<br />

50% 4.8 7.6 21.5 10.9<br />

90% 16.2 13.6 39.5 21.7<br />

mean 7.0 8.4 23.0 12.9<br />

10% 14.5 4.1 24.6 7.5<br />

50% 36.6 10.1 37.4 12.1<br />

90% 67.0 15.4 56.2 21.9<br />

mean 38.8 9.9 39.3 13.5<br />

(a) LOS (Corri-Corri)<br />

(b) NLOS (Corri.-Room)<br />

Figure 5.30: Example CDFs of Azimuth spreads at BS <strong>and</strong> MS.<br />

5.4.4.2 Scenario B1<br />

Figure 5.31 shows RMS azimuth angle-spread at the MS <strong>and</strong> for LOS <strong>and</strong> NLOS propagati<strong>on</strong> c<strong>on</strong>diti<strong>on</strong>s.<br />

Figure 5.32 presents RMS azimuth angle-spread at the BS for both LOS <strong>and</strong> NLOS propagati<strong>on</strong><br />

c<strong>on</strong>diti<strong>on</strong>s. We have not made any statistical fitting comparis<strong>on</strong> based <strong>on</strong> some well known techniques<br />

like KS test. However, based <strong>on</strong> Figure 5.31 the lognormal distributi<strong>on</strong> assumpti<strong>on</strong> is not as good as the<br />

log-logistic distributi<strong>on</strong> in fitting the RMS azimuth angle-spread at the MS for the case of LOS, while<br />

Gumbel distributi<strong>on</strong> has better fitting for the NLOS case. Distributi<strong>on</strong>s fitting to the RMS azimuth spread<br />

at the BS can be seen in Figure 5.32. Again for the LOS case, the log-logistic distributi<strong>on</strong> has better<br />

fitting to measurements than the lognormal distributi<strong>on</strong>. And again for NLOS case, the Gumbel<br />

distributi<strong>on</strong> has better fitting for the NLOS case.<br />

Page 80 (167)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!