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作者:

Yang, Ruizhe (Yang, Ruizhe.) | Lin, Bo (Lin, Bo.) | Yu, Fe. Richard (Yu, Fe. Richard.) | Teng, Yinglei (Teng, Yinglei.) | Zhang, Yanhua (Zhang, Yanhua.) (学者:张延华)

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EI Scopus

摘要:

In this paper, we propose a joint dynamic pilot and data power allocation scheme for time division duplex (TDD) massive multiple-input multiple-output (MIMO) systems, so as to both adaptively mitigate pilot contamination and balance the mutual interference. Due to the unknown of instant channel state information before pilots, we exploit the Gauss-Markov process of temporally-correlated channels and use the Kalman filter to not only filter out the pilot contamination but also provide the priori estimation values. Subsequently, the deterministic approximation of the rate is derived as a function of the priori channel estimation and the priori estimate errors, and accordingly the rate-profile maximization to achieve max-min fairness is formulated. To deal with this optimization coupled across the pilot power and data power as well as the users, we give an iterative alternating rate-suboptimal algorithm composed of two sub-problems, both of which are further solved by introducing the successive convex approximation (SCA) methods and slack variables. Numerical results confirm the improved rate provided by the proposed scheme. © 2018 IEEE.

关键词:

Approximation algorithms Channel estimation Channel state information Iterative methods Kalman filters Markov processes MIMO systems Time division multiplexing

作者机构:

  • [ 1 ] [Yang, Ruizhe]Beijing Advanced Innovation Center for Future Internet Technology, Beijing University of Technology, Beijing, China
  • [ 2 ] [Yang, Ruizhe]School of Information and Communication Engineering, Beijing University of Technology, Beijing, China
  • [ 3 ] [Lin, Bo]School of Information and Communication Engineering, Beijing University of Technology, Beijing, China
  • [ 4 ] [Yu, Fe. Richard]Dept. of Systems and Computer Eng., Carleton University, Ottawa; ON, Canada
  • [ 5 ] [Teng, Yinglei]School of Electronics Engineering, Beijing University of Posts and Telecommunications, Beijing, China
  • [ 6 ] [Zhang, Yanhua]Beijing Advanced Innovation Center for Future Internet Technology, Beijing University of Technology, Beijing, China
  • [ 7 ] [Zhang, Yanhua]School of Information and Communication Engineering, Beijing University of Technology, Beijing, China

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年份: 2018

语种: 英文

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 4

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