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Wireless Network Design: Optimization Models and Solution ...

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6 <strong>Optimization</strong> Based WLAN Modeling <strong>and</strong> <strong>Design</strong> 145<br />

by working backwards Example 4.11 on p. 166, giving a value for PL0 of 31.5 dB.<br />

As we are working in feet, we had to convert this value into the PL at 1 ft.<br />

PL(1ft) = PL(1m) + 32.7log 1ft<br />

1m<br />

Therefore, the PL at d (measured in feet) from the source is given by<br />

Combining (A.2) <strong>and</strong> (A.5) gives<br />

References<br />

PL = PL(1ft) + 32.7log d<br />

1ft<br />

= 14.6 + 32.7logd<br />

14.6+32.7logd<br />

−<br />

Pr = Pt10 10<br />

= Pt10 −1.46 d −3.27<br />

(A.4)<br />

(A.5)<br />

(A.6)<br />

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