Abstract
The problem of interference management and power control in two-tier heterogeneous network is investigated in this paper. Due to the time-varying characteristics of channels, the optimal transmit power changes with time. A hierarchical power control based on Kalman filter is proposed. Using Kalman filter, the current uplink transmit power under the influence of time varying channel gains due to the shadow fading effect is obtained by estimating the power of the last moment. This proposed method follows the slowly varying channel characteristics under the influence of the shadow fading effect in order to obtain an accurate power allocation. The proposed power control method is verified by computer simulations.
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Acknowledgment
This research was supported by the National Natural Science Foundation of China (61861034, 61461035), the Natural Science Foundation of Inner Mongolia (2018MS06004).
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© 2019 ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering
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Sun, K., Cao, Y., Shen, A., Yue, X., Huang, W. (2019). Power Control Based on Kalman Filter for Uplink Transmission in Two-Tier Heterogeneous Networks. In: Jia, M., Guo, Q., Meng, W. (eds) Wireless and Satellite Systems. WiSATS 2019. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 281. Springer, Cham. https://doi.org/10.1007/978-3-030-19156-6_4
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DOI: https://doi.org/10.1007/978-3-030-19156-6_4
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