Published 31 Dec 2019 •  vol 133  • 



Rashmi N, Department of Electronics and Communication Engineering, BMS Institute of Technology and Management, India
Mrinal Sarvagya, Department of Electronics and Communication Engineering, Reva university India



OFDM system loses the orthogonality between subcarriers due to carrier frequency offset resulting in inter-carrier interference (ICI) in the OFDM system. CFO impedes the performance of the demodulation process in baseband receiver increasing BER in the OFDM system. In the proposed scheme, the estimation of CFO is performed using the Extended Kalman filter (EKF) and sigma pointed Kalman filter (SPKF) on the SCM-OFDM system. The simulation results show that the estimation using SPKF can achieve better results than other variants of the Kalman filter. The proposed system improves the BER performance of the OFDM system. Further, it is shown that SPKF outperforms than of EKF.



Carrier Frequency Offset, OFDM, Superposition Coded Modulation, Sigma pointed Kalman filter



[1] Liu, L., Liang, C., Ma, J., & Ping, L. (2019). Capacity optimality of AMP in coded systems. arXiv preprint arXiv:1901.09559.
[2] Damrath, M., Hoeher, P. A., & Forkel, G. J. (2018). Piecewise linear detection for direct superposition modulation. Digital Communications and Networks, 4(2), 98-105.
[3] Osamura, A., Song, G., Cheng, J., & Cai, K. (2018, October). Sparse Multiple Access and Code Design with Near Channel Capacity Performance. In 2018 International Symposium on Information Theory and Its Applications (ISITA) (pp. 139-143). IEEE.
[4] Li, S., Bai, B., Zhou, J., He, Q., & Li, Q. (2018). Superposition coded modulation based faster-than-Nyquist signaling. Wireless Communications and Mobile Computing, 2018.
[5] Chi, Y., Liu, L., Guo, J., Song, G., Yuen, C., & Guan, Y. L. (2019). Variable-Rate Coding With Constant BER for NOMA via Multilevel IRA Coding. IEEE Transactions on Vehicular Technology, 68(5), 5149-5153.
[6] Cho, H., Nguyen, T. H., Nguyen, H. N., Choi, H. K., Choi, J. K., & Ro, S. (2018). A robust ICI suppression based on an adaptive equalizer for very fast time-varying channels in LTE-R systems. EURASIP Journal on Wireless Communications and Networking, 2018(1), 17.
[7] Vahidi, V., & Saberinia, E. (2018). ICI mitigation for high-speed OFDM communications in high-mobility vehicular channels. In Information Technology-New Generations (pp. 17-22). Springer, Cham.
[8] Lin, B., Tang, X., Ghassemlooy, Z., Li, Y., Zhang, M., Wu, Y., & Li, H. (2019). A NOMA scheme for visible light communications with single carrier transmission and frequency-domain successive interference cancellation. Optik, 183, 445-450.
[9] Wang, Y. Y., Huang, C. W., & Chen, W. W. (2018). Maximum likelihood carrier frequency offset estimation algorithm with adjustable frequency acquisition region. Journal of the Franklin Institute, 355(5), 2978-2985.
[10] Singh, S., Kumar, P., & Prasad, S. V. A. V. (2019). Improvement of BER in Wavelet Transform-based OFDM System with Kalman Filter. Journal of Communication Engineering & Systems, 4(1), 21-28.
[11] Zhang, X., Zhang, L., Xiao, P., & Wei, J. (2019). Fine Timing Synchronization Based on Modified Expectation Maximization Clustering Algorithm for OFDM Systems. IEEE Wireless Communications Letters.
[12] Malarvezhi, P., & Kumar, R. (2018). A Diversity Enhanced-Particle Filter based Multiple Carrier Frequency Offset Estimation Using Hadamard Matching in CA-OFDM Based LTE-A System. Wireless Personal Communications, 101(1), 87-99.
[13] Huu, N. N., Quoc, H. P., Van, L. P., Nguyen, T. H., Cho, H., Nguyen, V. D., & Jeon, B. (2018, January). An OFDM System Design with Efficient ICI Cancellation over Embedded LTE-R Channels Based on the USRP Platform. In Proceedings of the 12th International Conference on Ubiquitous Information Management and Communication (p. 10). ACM.
[14] Liao, Y., Shen, X., Sun, G., Dai, X., & Wan, S. (2019). EKF/UKF-based channel estimation for robust and reliable communications in V2V and IIoT. EURASIP Journal on Wireless Communications and Networking, 2019(1), 144.
[15] Shen, Z., Xu, K., Wang, Y., & Xie, W. (2018, October). Angle-Domain Channel Tracking for High-Speed Railway Communications with Massive ULA. In 2018 IEEE 18th International Conference on Communication Technology (ICCT) (pp. 159-165). IEEE.
[16] Rashmi, N., & Sarvagya, M. (2016, March). Channel estimation using Extended Kalman filter for superposition coded modulation system. In 2016 3rd International Conference on Computing for Sustainable Global Development (INDIACom) (pp. 3482-3486). IEEE.
[17] Rashmi, N., & Sarvagya, M. (2016). State Space Model-Based Channel Estimation using Extended Kalman Filter for Superposition Coded Modulation OFDM System. BVICA M's International Journal of Information Technology, 8(2), 1017.
[18] D J Costello and G D Forney “Channel coding: The Road to channel capacity,” Proc. IEEE, vol.95, no.6, June 2007, pp.1150-77.
[19] L Duan, B. Rimoldi, and R. Urbanke, "Approaching the AWGN channel capacity without active shaping," in Proc. IEEE int. Symp.Information theory (ISIT'97), Ulm, Germany, Jun/Jul 1997, p.374.



Rashmi N., & Sarvagya, M. (2019). Performance Enhancement of SCM-OFDM System using Carrier Frequency Offset Estimation and Correction. International Journal of Advanced Science and Technology (IJAST), ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, 133, 11-18. doi: 10.33832/ijast.2019.133.02.

Rashmi, N, et al. “Performance Enhancement of SCM-OFDM System using Carrier Frequency Offset Estimation and Correction.” International Journal of Advanced Science and Technology, ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, vol. 133, 2019, pp. 11-18. IJAST,

[1] Rashmi N, and M. Sarvagya, "Performance Enhancement of SCM-OFDM System using Carrier Frequency Offset Estimation and Correction." International Journal of Advanced Science and Technology (IJAST), ISSN: 2005-4238(Print); 2207-6360 (Online), NADIA, vol. 133, pp. 11-18, Dec 2019.