The Optimization of Improved Energy Detector in Cognitive Radio Network

DOI

10.2991/cisia-15.2015.23How to use a DOI?

Keywords

cognitive radio network; improved energy detector; fusion criterion

Abstract

The improved energy detector in the Cognitive Radio Network is modified by replacing the squaring operation of the received signal amplitude in the conventional energy detector with an arbitrary positive power p. In this paper, the cognitive radio networks take a decision of the presence or absence of the primary user by using an improved energy detector. In the single-node sensing, we discussed the influence of sensing threshold and p on the system performance when the SNR is determined. The optimized value of p and sensing threshold were found out by minimizing the total probability of error. The K out of N fusion criterion and the influence of K on the total probability of error in the cooperative spectrum sensing were discussed. The optimized value of p, K and is obtained by minimizing the total probability of error.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - X.J Dong
AU  - Y.B Chen
AU  - G.Y Yang
AU  - X.S Pang
AU  - J.X Yang
PY  - 2015/06
DA  - 2015/06
TI  - The Optimization of Improved Energy Detector in Cognitive Radio Network
BT  - Proceedings of the International Conference on Computer Information Systems and Industrial Applications
PB  - Atlantis Press
SP  - 87
EP  - 90
SN  - 2352-538X
UR  - https://doi.org/10.2991/cisia-15.2015.23
DO  - 10.2991/cisia-15.2015.23
ID  - Dong2015/06
ER  -