Automatic Modulation Identification of MPSK Signals Using Differential Signal and its Higher Order Cumulants

Abstract:

Automatic modulation classification plays a significant role in intelligent communication. A new method based on feature extraction is proposed for the recognition of M-ary Phase Shift Keying (MPSK) signals. As features, fourth and eighth order cumulants of the input samples and phase differential sequences were applied. It is shown that the cumulant-based features have robust anti-noise ability. Simulation results demonstrate that the correct classification probability (Pcc) with the proposed algorithm is higher than the existing approaches at low signal-to-noise ratio (SNR).

• Periodical: Advanced Materials Research (Volumes 403-408)
• Pages: 2547-2551
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.403-408.2547
• Online since: November 2011
• Authors: Zhan Hui Cai, Yuan Cheng Yao
• Keywords: Differential Signal, Higher-Order Cumulants, Modulation Classification

References

[1] J.A. Sills, in: IEEE Transactions on Military Communication, Vol. 1 (1999), p.217.

[2] E.E. Azzoz, A.K. Nandi: Signal Processing, Vol. 334B (1997), p.241.

[3] A. Swami, B.M. Sadler, in: IEEE Transactions on Communication, Vol. 48 (2000), p.416.

[4] Chen Wei-dong, Yang Shao-quan: Journal of Xidian University China, Vol. 29 (2002), p.229.

[5] Li Shao-kai, Dong Bin, Liu Ning: Communication Technology, Vol. 43 (2010), p.127.

[6] M. Vastram Naik, R. Bhattacharjee, A. Mahanta, H.B. Nemade, in: IEEE Transactions on Communicaiton System Software and Middleware, (2006).