Abstract
As an uplink modulation technique, orthogonal frequency division multiplexing (OFDM) has been utilized by the fifth generation (5G) mobile communication. In this paper, we propose a DFT-based channel estimation method based on demodulation reference signals (DMRS), which has been stipulated in the LTE physical uplink shared channel (PUSCH). In order to reduce the edge distortion caused by the Gibbs phenomenon in DFT-based scheme, an improved scheme based on extended effective bandwidth (EEB) has been proposed. It is demonstrated that, the EEB-based scheme has better performance than the DFT-based scheme under multipath fading channel according to the computer simulation.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Similar content being viewed by others
References
Ghosh, A., Ratasuk, R., Mondal, B., Mangalvedhe, N., Thomas, T.: LTE-advanced: next-generation wireless broadband technology. IEEE Wirel. Commun. 17(3), 10–22 (2010)
3GPP: Study on new radio access technology physical layer aspects, v14.2.0, TR 38.802 (2017). http://www.3gpp.org/ftp//Specs/archive/38_series/38.802/38802-e20.zip
Hou, X., Kayama, H.: Demodulation reference signal design and channel estimation for LTE-advanced uplink. Adv. Veh. Netw. Technol. 417–432 (2011)
3GPP: NR; Physical channels and modulation (Release 15), v15.1.0, TS 38.211 (2018). http://www.3gpp.org/ftp//Specs/archive/38_series/38.211/38211-f10.zip
Kong, D., Xia, X.G., Jiang, T.: A differential QAM detection in uplink massive MIMO systems. IEEE Trans. Wirel. Commun. 15(9), 6371–6383 (2016)
Kong, D., Zheng, X., Zhang, Y., Jiang, T.: Frame repetition: a solution to imaginary interference cancellation in FBMC/OQAM systems. IEEE Trans. Sign. Process. 68, 1259–1273 (2020)
Kong, D., Xu, Y., Song, G., Li, J., Jiang, T.: A CP reduction scheme based on symbol repetition for narrow-band IoT systems. IEEE Internet Things J. (2021). Accepted, 1109/JIOT. 2021. 3063732 DOI: 10
Noh, G., Hui, B., Kim, J., Chung, H., Kim, I.: DMRS design and evaluation for 3GPP 5G new radio in a high speed train scenario. In: IEEE Global Communications Conference, pp. 1–6, December 2017
Tran, H., Mai, T., Vuong, D., Nguyen, N.: On improvement of channel estimation for the uplink of large scale MU-MIMO using DMRS. IEEE 5G World Forum, pp. 294–298, July 2018
Jiang, M., Yue, G., Prasad, N., Rangarajan, S.: Enhanced DFT-based channel estimation for LTE uplink. In: IEEE Vehicular Technology Conference, pp. 1–5, May 2012
Li, X., Jing, X., Sun, S., Huang, H., Lu, Y.: An improved DFT-based channel estimation method for OFDM system. In: International Conference on Cyberspace Technology, pp. 550–554, November 2013
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2022 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Sun, J. et al. (2022). DMRS-based Channel Estimation Methods for Two-Port OFDM Systems in 5G Uplink. In: Liang, Q., Wang, W., Liu, X., Na, Z., Zhang, B. (eds) Communications, Signal Processing, and Systems. CSPS 2021. Lecture Notes in Electrical Engineering, vol 878. Springer, Singapore. https://doi.org/10.1007/978-981-19-0390-8_51
Download citation
DOI: https://doi.org/10.1007/978-981-19-0390-8_51
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-19-0389-2
Online ISBN: 978-981-19-0390-8
eBook Packages: EngineeringEngineering (R0)