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RSS based location estimation algorithm is an example of ____

(a) traffic based method

(b) waveform based method

(c) environment sensing based method

(d) source based method

I had been asked this question in semester exam.

Enquiry is from Location Awareness in chapter Location and Environment Awareness in Cognitive Radio of Cognitive Radio

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The correct answer is (c) environment sensing based method

To explain: Environment sensing based method may be used for seamless positioning. It monitors channel parameters and changes the algorithm accordingly. In RSS location based algorithm, location of device and path loss coefficient of channel environment are used to maintain accuracy.

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