Distributed energy efficiency beamforming design in multiple-input-single-output interference channels

Hongbo Xu; Jun Liu; Aizhi Zhou

Distributed energy efficiency beamforming design in multiple-input-single-output interference channels

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Author(s): Hongbo Xu ¹ ; Jun Liu ¹ ; Aizhi Zhou ¹
- Affiliations: 1: College of Physical Science and Technology, Central China Normal University, Wuhan, People's Republic of China
Source: Volume 10, Issue 15, 13 October 2016, p. 1964 – 1970
DOI: 10.1049/iet-com.2015.1185 , Print ISSN 1751-8628, Online ISSN 1751-8636

Received 13/12/2015, Accepted 09/04/2016, Revised 29/02/2016, Published 13/10/2016

Coordinated beamforming designs based on energy efficiency of multiple-user interference channels have attracted much attention. The optimisation problem has a fractional form, and is coupled among users, which makes it difficult to be solved directly. A beamforming design for energy-efficient communication in multiple-input–single-output interference channels is studied, and proposes an efficient distributed approach to solve it. A novel method is developed to transform the optimisation problem into a DC (difference of two convex/concave functions) structure. The transformed optimisation problem is approximated by using a separable structure across the users, and this approximated version is solved iteratively. Numerical results show the effectiveness of the authors’ proposed algorithm.

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