Spectrum Sensing Based on Weighted Diversity Combining Using Time-Averaged CAF

This paper proposes a cyclic autocorrelation function (CAF) diversity combining technique for spectrum sensing using test statistics shared among multiple receive antennas with time-averaged weights. The proposed technique computes a weight factor by averaging CAF, and the weight factor is employed to improve the performance of signal detection. The proposed results are compared with some conventional techniques, and they show that the signal detection performance can be improved without the increasing computational complexities in comparison with the conventional techniques.

[1]  Shusuke Narieda.  Simple Diversity Combining Techniques for Cyclostationarity Detection Based Spectrum Sensing in Cognitive Radio Networks , 2014, 2014 IEEE 79th Vehicular Technology Conference (VTC Spring).

[2]  Hiroyoshi Yamada,et al.  Four-Component Scattering Power Decomposition With Rotation of Coherency Matrix , 2011, IEEE Trans. Geosci. Remote. Sens..

[3]  Jitendra K. Tugnait,et al.  On Cyclostationarity Based Spectrum Sensing Under Uncertain Gaussian Noise , 2013, IEEE Transactions on Signal Processing.

[4]  Kenta Umebayashi,et al.  Low Computational Complexity Spectrum Sensing Based on Cyclostationarity for Multiple Receive Antennas , 2017 .

[5]  Richard Klemm,et al.  Applications of Space-Time Adaptive Processing , 2004 .

[6]  Takeo Fujii,et al.  A Robust Spectrum Sensing Method Based on Maximum Cyclic Autocorrelation Selection for Dynamic Spectrum Access , 2009, IEICE Trans. Commun..

[7]  Yonghong Zeng,et al.  Sensing-Throughput Tradeoff for Cognitive Radio Networks , 2008, IEEE Trans. Wirel. Commun..

[8]  I. Hajnsek,et al.  A tutorial on synthetic aperture radar , 2013, IEEE Geoscience and Remote Sensing Magazine.

[9]  Simon Haykin,et al.  Cognitive radio: brain-empowered wireless communications , 2005, IEEE Journal on Selected Areas in Communications.

[10]  A. Farina,et al.  Experimental HF radar trial of real-time STAP , 2007, 2007 International Waveform Diversity and Design Conference.

[11]  B. Carlson.  Covariance matrix estimation errors and diagonal loading in adaptive arrays , 1988 .

[12]  Yoshio Yamaguchi,et al.  Disaster Monitoring by Fully Polarimetric SAR Data Acquired With ALOS-PALSAR , 2012, Proceedings of the IEEE.