IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Regular Section
Spectrum Sensing Using Phase Inversion Based on Space Diversity with Over Three Antennas
Shusuke NARIEDAHiroshi NARUSE
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2019 Volume E102.A Issue 8 Pages 974-977

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Abstract

This letter presents a computational complexity reduction technique for space diversity based spectrum sensing when the number of receive antennas is greater than three (NR≥3 where NR is the number of receive antenna). The received signals are combined with phase inversion so as to not attenuate the combined signal, and a statistic for signal detection is computed from the combined signal. Because the computation of only one statistic is required regardless of the number of receive antenna, the complexity can be reduced. Numerical examples and simple analysis verify the effectiveness of the presented technique.

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© 2019 The Institute of Electronics, Information and Communication Engineers
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