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Average received signal power decreases __________ with distance.(a) Exponentially(b) Logarithmically(c) Two times(d) Four timesThis question was addressed to me in a job interview.Enquiry is from Practical Link Budget Design Using Path Loss Models in section Mobile Radio Propagation: Large – Scale Path Loss of Wireless/Mobile

Answer»

Correct answer is (b) LOGARITHMICALLY

The best I can EXPLAIN: Both theoretical and measurement based propagation models indicate that AVERAGE received signal power decreases logarithmically with DISTANCE. It is VALID for both outdoor and indoor channels.



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