Abstract
To solve the problem of equalization and carrier recovery in the reception and demodulation of 256-QAM with large frequency offset, this paper has proposed a multi-stage joint blind equalization carrier algorithm. This scheme first coarsely captures and compensates the signal frequency offsets, and then places the equalizer in the carrier synchronization loop to further eliminate frequency offset and inter-symbol interference. The proposed scheme greatly improves the carrier frequency offset tracking ability while eliminating the influence of carrier frequency offset on equalizer performance. Simulation results show that the proposed scheme can achieve equalization and carrier synchronization of 256-QAM with the maximum 12% normalized frequency offset
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Park C., Lee, J., Kim, Y.: Modified reduced constellation PLL for higher order QAM [C]. In: IEEE International Symposium on Circuits and Systems, 2144–2147 (2007)
Xue, W., Yang, X.N., Zhang Z.Y.: A carrier recovery algorithm for high order QAM signals [C]. In: 2010 6th International Conference on Wireless Communications Networking and Mobile Computing, pp. 1–4 (2010)
Jablon, N.K.: Joint blind equalization, carrier recovery and timing recovery for high-order QAM signal constellations [C]. IEEE Trans. Signal Process. 40(6), 1383–1398 (1992)
Yuan, J.T., Tsai, K.D.: Analysis of the multimodulus blind equalization algorithm in QAM communication systems [J]. IEEE Trans. Commun. 53(9), 1427–1431 (2005)
Jablon, N.K.: Joint blind equalization, carrier recovery and timing recovery for high-order QAM signal constellations [J]. IEEE Trans. Signal Process. 40(6), 1383–1398 (1992)
Zhang, Y., Zhao, J., Li, J., et al.: A fast convergent algorithm for joint blind equalization and carrier recovery[C]. In: International Conference on Signal Processing, pp. 1784–1787. IEEE (2008)
Abrar, S., Nandi, A.K.: Adaptive Solution for Blind Equalization and Carrier-Phase Recovery of Square-QAM [J]. IEEE Signal Process. Lett. 17(9), 791–794 (2010)
Hung, K.C., Lin, D.W.: Joint carrier recovery and multimodulus blind decision-feedback equalization under high-order QAM[C]. In: Global Telecommunications Conference, GLOBECOM 2004, vol. 4, pp. 2281–2285. IEEE (2004)
Tian, J., Shen, B., Li, Z., et al.: Joint carrier recovery and adaptive equalization for high-order QAM [C]. In: IEEE International Symposium on Circuits and Systems, vol. 2, pp. 928–931. IEEE (2005)
Godard, D.N.: Self-recovering equalization and carrier tracking in two-dimensional data communication systems [J]. IEEE Trans. Commun. 28(11), 1867–1875 (1980)
Aghamohammadi, A., Meyr, H., Ascheid, G.: A new method for phase synchronization and automatic gain control of linearly modulated signals on frequency-flat fading channels [J]. IEEE Trans. Commun. 39(1), 25–29 (2001)
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Yonggang, C., Fengqin, Q., Lu, C., Yingyying, G. (2019). A New Multi-stage Joint Blind Equalization Carrier Synchronization for 256-QAM with Large Frequency Offsets. In: Liang, Q., Liu, X., Na, Z., Wang, W., Mu, J., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2018. Lecture Notes in Electrical Engineering, vol 515. Springer, Singapore. https://doi.org/10.1007/978-981-13-6264-4_12
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DOI: https://doi.org/10.1007/978-981-13-6264-4_12
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