An Investigation of the Impact of Signal Strength on Wi-Fi Link ...
An Investigation of the Impact of Signal Strength on Wi-Fi Link ...
An Investigation of the Impact of Signal Strength on Wi-Fi Link ...
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The average throughput <str<strong>on</strong>g>of</str<strong>on</strong>g> <str<strong>on</strong>g>the</str<strong>on</strong>g> “AP mode” with E<str<strong>on</strong>g>the</str<strong>on</strong>g>rnet c<strong>on</strong>necti<strong>on</strong> was 14.347 and<br />
13.749 Mbps (refer tables D.3 and D.4). These results were close to phase 2<br />
measurement results (14.834 Mbps, refer table 5.3).<br />
Fur<str<strong>on</strong>g>the</str<strong>on</strong>g>rmore, under same AP c<strong>on</strong>figurati<strong>on</strong>, RSS was -43 dBm in <str<strong>on</strong>g>the</str<strong>on</strong>g> preliminary<br />
measurement (refer table A.4), which was much better than phase 3 measurement results<br />
(-44 dBm ~ -70 dBm). However, <str<strong>on</strong>g>the</str<strong>on</strong>g> throughput <str<strong>on</strong>g>of</str<strong>on</strong>g> preliminary measurement (11.863<br />
Mbps, refer table A.4) was 18% lower than this measurement (14.347 Mbps). This is<br />
due to <str<strong>on</strong>g>the</str<strong>on</strong>g> fact that different locati<strong>on</strong>s <str<strong>on</strong>g>of</str<strong>on</strong>g> APs and RX, and radio propagati<strong>on</strong><br />
envir<strong>on</strong>ment lead to inc<strong>on</strong>sistent results. Thus, <str<strong>on</strong>g>the</str<strong>on</strong>g> results revealed that positi<strong>on</strong>s <str<strong>on</strong>g>of</str<strong>on</strong>g> APs<br />
and RX, and radio propagati<strong>on</strong> envir<strong>on</strong>ment have important impact <strong>on</strong> <strong>Wi</strong>-<strong>Fi</strong> link<br />
throughput.<br />
5.4.3 Comments<br />
<str<strong>on</strong>g>An</str<strong>on</strong>g> exhaustive propagati<strong>on</strong> study and phase 3 measurement results are presented. The<br />
results showed that two APs can provide much better signal strength and throughput<br />
than a single AP in this <str<strong>on</strong>g>of</str<strong>on</strong>g>fice. <strong>Wi</strong>th two APs c<strong>on</strong>figurati<strong>on</strong>, throughput can be quite<br />
close to <str<strong>on</strong>g>the</str<strong>on</strong>g> estimated throughput. Thus, two APs are found to be sufficient for this<br />
entire floor coverage.<br />
<strong>Wi</strong>th <str<strong>on</strong>g>the</str<strong>on</strong>g> same radio propagati<strong>on</strong> envir<strong>on</strong>ment and similar RSS value, <str<strong>on</strong>g>the</str<strong>on</strong>g> average<br />
throughput <str<strong>on</strong>g>of</str<strong>on</strong>g> “WDS with AP mode” was much lower than “AP mode” with E<str<strong>on</strong>g>the</str<strong>on</strong>g>rnet<br />
c<strong>on</strong>necti<strong>on</strong>. Therefore, “AP mode” with E<str<strong>on</strong>g>the</str<strong>on</strong>g>rnet c<strong>on</strong>necti<strong>on</strong> c<strong>on</strong>figurati<strong>on</strong> provides<br />
better performance than <str<strong>on</strong>g>the</str<strong>on</strong>g> “WDS with AP mode” c<strong>on</strong>figurati<strong>on</strong>.<br />
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