Methods of SNR estimation from asynchronously sampled data in an 802.11b system

Data is sampled from an 802.11b client card and then analyzed. The behavior of the signal and the characteristics of the noise is explored. Several SNR esimation algorithms are implemented and applied on the collected data. The results of this is a comparison of different SNR estimation techniques, as well as a look at how the SNR of the signal decreases as the distance from the access point increases. The effects of asynchronous sampling are also investigated, and algorithms to reverse these effects are developed. Finally the efficiency of these algorithms are explored.

Author: Persson, Jimmy

Source: Lulea University of Technology

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