Channel Estimation for SCM-OFDM Systems by Modified Kalman Filter


In this paper, the problem of channel estimation for superposition coded modulation-orthogonal frequency division multiplexing (SCM-OFDM) systems over frequency selective channels is investigated. Assuming that the path delays are known, a new channel estimator based on modified Kalman filter algorithms is introduced for the estimation of the multipath Rayleigh channel complex gains (CG). In the simulation, the mean square error (MSE) and bit-error-rate (BER) performances are given to verify the effectiveness of the Kalman estimation algorithms for SCM-OFDM systems.

Share and Cite:

Peng, T. , Xiao, Y. , Li, S. , Shu, H. and Simon, E. (2013) Channel Estimation for SCM-OFDM Systems by Modified Kalman Filter. Communications and Network, 5, 666-670. doi: 10.4236/cn.2013.53B2119.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] P. Li, L. H. Liu, K. Y. Wu and W. K. Leung, “A Unified Approach to Multiuser Detection and Space-Time Coding with Low Complexity and Nearly Optimal Performance,” Proceedings of 40th Allerton Conference, 2002, pp. 170- 179.
[2] P. Li, L. H. Liu, K. Y. Wu and W. K. Leung, “Interleave division multiple access,” IEEE Transaction on Wireless Communication, Vol. 5, No. 4, 2006, pp. 938-947.
[3] J. Tong and P. Li, “Iterative Decoding of Superposition Coding,” Proceedings of 4th International Symposium on Turbo Codes, 2006.
[4] J. Tong, P. Li and X. Ma, “Superposition Coded Modulation with Peak-Power Limitation,” IEEE Transactions on Information Theory, Vol. 55, No. 6, 2009, pp. 2562-2576.
[5] J. Tong, P. Li, Z. H. Zhang and W. K. Bhargava, “Iterative Soft Compensation for OFDM Systems with Clipping and Superposition Coded Modulation,” IEEE Transactions on Communications, Vol. 58, No. 10, 2010, pp. 2861-2870.
[6] H. Schoeneich and P. A. Hoeher, “Iterative Pilot-Layer Aided Channel Estimation with Emphasis on Interleave-Division Multiple Access Systems,” EURASIP Journal on Advances in Signal Processing, Vol. 2006, 2006, pp. 1-15.
[7] S. Suyama, H. Suzuki, K. Fukawa and L. Zhang, “Iterative Multiuser Detection with Soft Decision-Directed Channel Estimation for MC-IDMA and Performance Comparison with Chip-Interleaved MC-CDMA,” IEICE IEEE Transactions on Communications, Vol. E92-B, No. 5, 2009, pp. 1495-1503.
[8] S. Ghandour-Haidar, L. Ros, J.M. Brossier, “On the Use of First-Order Autoregressive Modeling for Rayleigh Flat Fading Channel Estimation with Kalman Filter,” Signal Processing, Vol. 92, No. 2, 2012, pp. 601-606.
[9] E. P. Simon, L. Ros, H. Hijazi and M. Ghogho, “Joint Carrier Frequency Offset and Channel Estimation for OFDM Systems via the EM Algorithm in the Presence of Very High Mobility,” IEEE Transaction on Signal Process, Vol. 60, No. 2, 2012, pp. 754-765.
[10] E. P. Simon, L. Ros, H. Hijazi, et al., “Joint Carrier Frequency Offset and Fast Time-Varying Channel Estimation for MIMO-OFDM Systems,” IEEE Transactions on Vehicular Technology, Vol. 60, No. 3, 2011, pp. 955-965.

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.