I. Neri, Riccardo Centonze, M. L. Fravolini, A. Moschitta
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A simple ranging technique based on received signal strength measurements in a narrowband 2.4 GHz channel: A space diversity approach
Indoor positioning using RF signals is usually a difficult task, due to multipath phenomena, that, especially for narrowband transmissions, can deeply affect signal propagation. In this paper, a simple technique for improving the accuracy of a received signal strength based ranging system is proposed. It is shown that, using narrowband low power transmissions in the 2.4 GHz channel and a multiple input multiple output approach, multipath effects can be mitigated, leading to a significant improvement in accuracy.
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