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New Blind Recognition Method of SCLD and OFDM Based on Cyclostationarity

  • Yilong Chen
  • Changzhong Zhang
  • Zhuo Sun
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 246)

Abstract

Previous studies on blind recognition of the modulation format of a received signal is generally performed in single domain, e.g. frequency or time domain. This paper presents a new approach by defining a dual domain decision function, which makes use of signals features that the magnitude of second-order cyclic cumulants of orthogonal frequency division multiplexing (OFDM) signals and single carrier linear digitally modulated (SCLD) signals has an obvious difference in both time and frequency domain. The proposed algorithm enlarges the distinguish gap between OFDM and SCLD. The results of simulation experiments confirm the theoretical analysis.

Keywords

Blind recognition OFDM Second order cyclostationarity 

Notes

Acknowledgments

This work was supported by the National Natural Science Foundation of China under grant 61271181, and the Fundamental Research Funds for the Central Universities under grant 2013RC0104.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  1. 1.Wireless Signal Processing and Network Lab, Key Laboratory of Universal Wireless Communications, Ministry of EducationBeijing University of Posts and TelecommunicationsBeijingChina

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