Abstract
© 2002-2012 IEEE.
Single carrier frequency domain equalization (SC-FDE) is an alternative technology to orthogonal frequency division multiplexing to deal with the frequency selective channel fading effect in broadband wireless communication systems. In this paper, we consider a robust SC-FDE design with imperfect channel knowledge at a receiver due to the channel estimation error. Based on a statistical model for channel estimation, the optimal equalization coefficients are derived under the criterion of minimizing the mean square error conditioned on a given channel estimate. The bit error rate is further analyzed and a tight performance approximation is proposed. We also propose two robust FDE schemes in coded systems, where feedback from the channel decoder is utilized to improve the equalization and/or channel estimation performance. Simulation results show that the proposed robust FDE schemes achieve significant performance improvement over the conventional FDE schemes.
Single carrier frequency domain equalization (SC-FDE) is an alternative technology to orthogonal frequency division multiplexing to deal with the frequency selective channel fading effect in broadband wireless communication systems. In this paper, we consider a robust SC-FDE design with imperfect channel knowledge at a receiver due to the channel estimation error. Based on a statistical model for channel estimation, the optimal equalization coefficients are derived under the criterion of minimizing the mean square error conditioned on a given channel estimate. The bit error rate is further analyzed and a tight performance approximation is proposed. We also propose two robust FDE schemes in coded systems, where feedback from the channel decoder is utilized to improve the equalization and/or channel estimation performance. Simulation results show that the proposed robust FDE schemes achieve significant performance improvement over the conventional FDE schemes.
| Original language | English |
|---|---|
| Pages (from-to) | 6091-6103 |
| Journal | IEEE Transactions on Wireless Communications |
| Volume | 15 |
| Issue number | 9 |
| Early online date | 8 Jun 2016 |
| DOIs | |
| Publication status | Published - 8 Sep 2016 |
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Zhu, Y., Zhe, P., Zhou, H., & Huang, D. (2016). Robust Single Carrier Frequency Domain Equalization with Imperfect Channel Knowledge. IEEE Transactions on Wireless Communications, 15(9), 6091-6103. https://doi.org/10.1109/TWC.2016.2578332