Precoder design in downlink CoMP-JT MIMO network via WMMSE and asynchronous ADMM

Zhikun Wu; Zesong Fei

doi:10.1007/s11432-017-9275-y

Precoder design in downlink CoMP-JT MIMO network via WMMSE and asynchronous ADMM

Zhikun Wu
, Zesong Fei^*

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Precoder design of coordinated multi-point joint transmission (CoMP-JT) multiple-input and multiple-output (MIMO) network aimied at throughput maximization is a challenging problem. In this paper, we propose an asynchronous distributed iterative method to solve this problem. We transform the original throughput maximizing problem to the weighted minimum mean square error (WMMSE) problem, then decompose the problem into a series of subproblems. Based on alternation direction method of multipliers (ADMM), the proposed algorithm can solve the optimal precoder in a distributed manner. With asynchronous information exchange mechanism considered, the convergence rate of our algorithm can be accelerated further. Numerical results demonstrate the increase of throughput and the optimality of the precoding scheme provided by our algorithm.

Original language	English
Article number	082306
Journal	Science China Information Sciences
Volume	61
Issue number	8
DOIs	https://doi.org/10.1007/s11432-017-9275-y
Publication status	Published - 1 Aug 2018

Keywords

alternation direction method of multipliers
asynchronous method
block coordinate descent
coordinated multi-point joint transmission
multiple-input and multiple-output
weighted minimum mean square error

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10.1007/s11432-017-9275-y

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title = "Precoder design in downlink CoMP-JT MIMO network via WMMSE and asynchronous ADMM",

abstract = "Precoder design of coordinated multi-point joint transmission (CoMP-JT) multiple-input and multiple-output (MIMO) network aimied at throughput maximization is a challenging problem. In this paper, we propose an asynchronous distributed iterative method to solve this problem. We transform the original throughput maximizing problem to the weighted minimum mean square error (WMMSE) problem, then decompose the problem into a series of subproblems. Based on alternation direction method of multipliers (ADMM), the proposed algorithm can solve the optimal precoder in a distributed manner. With asynchronous information exchange mechanism considered, the convergence rate of our algorithm can be accelerated further. Numerical results demonstrate the increase of throughput and the optimality of the precoding scheme provided by our algorithm.",

keywords = "alternation direction method of multipliers, asynchronous method, block coordinate descent, coordinated multi-point joint transmission, multiple-input and multiple-output, weighted minimum mean square error",

author = "Zhikun Wu and Zesong Fei",

note = "Publisher Copyright: {\textcopyright} 2018, Science China Press and Springer-Verlag GmbH Germany, part of Springer Nature.",

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T1 - Precoder design in downlink CoMP-JT MIMO network via WMMSE and asynchronous ADMM

AU - Wu, Zhikun

AU - Fei, Zesong

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N2 - Precoder design of coordinated multi-point joint transmission (CoMP-JT) multiple-input and multiple-output (MIMO) network aimied at throughput maximization is a challenging problem. In this paper, we propose an asynchronous distributed iterative method to solve this problem. We transform the original throughput maximizing problem to the weighted minimum mean square error (WMMSE) problem, then decompose the problem into a series of subproblems. Based on alternation direction method of multipliers (ADMM), the proposed algorithm can solve the optimal precoder in a distributed manner. With asynchronous information exchange mechanism considered, the convergence rate of our algorithm can be accelerated further. Numerical results demonstrate the increase of throughput and the optimality of the precoding scheme provided by our algorithm.

AB - Precoder design of coordinated multi-point joint transmission (CoMP-JT) multiple-input and multiple-output (MIMO) network aimied at throughput maximization is a challenging problem. In this paper, we propose an asynchronous distributed iterative method to solve this problem. We transform the original throughput maximizing problem to the weighted minimum mean square error (WMMSE) problem, then decompose the problem into a series of subproblems. Based on alternation direction method of multipliers (ADMM), the proposed algorithm can solve the optimal precoder in a distributed manner. With asynchronous information exchange mechanism considered, the convergence rate of our algorithm can be accelerated further. Numerical results demonstrate the increase of throughput and the optimality of the precoding scheme provided by our algorithm.

KW - alternation direction method of multipliers

KW - asynchronous method

KW - block coordinate descent

KW - coordinated multi-point joint transmission

KW - multiple-input and multiple-output

KW - weighted minimum mean square error

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DO - 10.1007/s11432-017-9275-y

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Precoder design in downlink CoMP-JT MIMO network via WMMSE and asynchronous ADMM

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Keywords

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