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Spectrum Sensing Using Phase Inversion Based on Space Diversity with Over Three Antennas

Shusuke NARIEDA, Hiroshi NARUSE

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Summary :

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.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E102-A No.8 pp.974-977
Publication Date
2019/08/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E102.A.974
Type of Manuscript
LETTER
Category
Communication Theory and Signals

Authors

Shusuke NARIEDA
  Mie Univ.
Hiroshi NARUSE
  Mie Univ.

Keyword