Abstract
As one of the key technology of 5th Generation (5G), large-scale Multiple-Input Multiple-Output (MIMO) system is the development tendency of next generation of wireless communication. A large number of antennas have been used in Base Station (BS) to make the full use of the space dimension which can effectively improve the data transfer rate and spectrum efficiency. However, correlational researches show that the pilot multiplexing causes serious interference among cells which is called pilot contamination. In this paper, we present a novel approach which tackles this problem to reduce the pilot contamination effect in uplink channel estimation. By using of the channel model of steering vector, we analyse Minimum Mean Square Error (MMSE) channel estimation methods. We also obtain the relationship between signal Angle of Arrive (AoA) and channel estimation error. We propose a user selection method based on AoA. The proposed method exploits the location of User Equipment (UE), scatterer, and BS to decrease the channel estimation error. Simulation result shows that it has a significant improvement contrast with the traditional method.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Marzetta, T.L.: Noncooperative cellular wireless with unlimited numbers of base station antennas. IEEE Trans. Wirel. Commun. 9(11), 3590–3600 (2010)
Ngo, H.Q., Larsson, E.G., Marzetta, T.L.: Energy and spectral efficiency of very large multiuser MIMO systems. IEEE Trans. Commun. 61(4), 1436–1449 (2013)
Larsson, E.G., Edfors, O., Tufvesson, F., Marzetta, T.L.: Massive MIMO for next generation wireless systems. IEEE Commun. Mag. 52(2), 186–195 (2014)
Rusek, F., et al.: Scaling up MIMO: opportunities and challenges with very large arrays. IEEE Sig. Process. Mag. 30(1), 40–60 (2013)
Adhikary, A., Nam, J., Ahn, J.Y., Caire, G.: Joint spatial division and multiplexing—the large-scale array regime. IEEE Trans. Inf. Theor. 59(10), 6441–6463 (2013)
Zhu, X., Dai, L., Wang, Z.: Graph coloring based pilot allocation to mitigate pilot contamination for multi-cell massive MIMO systems. IEEE Commun. Lett. 19(10), 1842–1845 (2015)
Appaiah, K., Ashikhmin, A., Marzetta, T.L.: Pilot contamination reduction in multi-user TDD systems. In: 2010 IEEE International Conference on Communications (ICC), pp. 1–5 (2010)
Mochaourab, R., Björnson, E., Bengtsson, M.: Pilot clustering in asymmetric massive MIMO networks. In: 2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), pp. 231–235 (2015)
Yin, H., Gesbert, D., Filippou, M., Liu, Y.: A coordinated approach to channel estimation in large-scale multiple-antenna systems. IEEE J. Sel. Areas Commun. 31(2), 264–273 (2013)
He, Q., Zhang, X., Xiao, L., Liu, X., Zhou, S.: A low-complexity pilot reuse scheme to increase the throughput of massive MIMO. In: Vehicular Technology Conference (VTC Fall), pp. 1–5 (2015)
Saxena, V., Fodor, G., Karipidis, E.: Mitigating pilot contamination by pilot reuse and power control schemes for massive MIMO systems. In: 2015 IEEE 81st Vehicular Technology Conference (VTC Spring), pp. 1–6 (2015)
Shiu, D.-S., Faschini, G.J., Gans, M.J., Kahn, J.M.: Fading correlation and its effect on the capacity of multi-element antenna systems. In: IEEE 1998 International Conference on Universal Personal Communications, ICUPC 1998, Florence, vol.1, pp. 429–433 (1998)
Acknowledgments
This work was supported by the China’s 863 Project (No. 2015AA01A706), the National S&T Major Project (No. 2016ZX03001017), Science and Technology Program of Beijing (No. D161100001016002), and by State Key Laboratory of Wireless Mobile Communications, China Academy of Telecommunications Technology (CATT).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2017 Springer International Publishing AG
About this paper
Cite this paper
Zhang, C. (2017). Pilot Assignment Scheme Based on Location in Large-Scale MIMO System. In: Rocha, Á., Correia, A., Adeli, H., Reis, L., Costanzo, S. (eds) Recent Advances in Information Systems and Technologies. WorldCIST 2017. Advances in Intelligent Systems and Computing, vol 570. Springer, Cham. https://doi.org/10.1007/978-3-319-56538-5_99
Download citation
DOI: https://doi.org/10.1007/978-3-319-56538-5_99
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-56537-8
Online ISBN: 978-3-319-56538-5
eBook Packages: EngineeringEngineering (R0)