Abstract
In this study, the authors study the robust transmit beamforming and receive power splitting design for simultaneous wireless information and power transfer in multiuser multiple-input-single-output interference channel with imperfect channel-state information at the transmitter. Following the worst-case model, they minimise the average total transmit power subject to a set of energy harvesting constraints and signal-to-interference-and-noise ratio constraints. On the basis of the Lagrangian multiplier method, they propose a robust design method based on tight bounds that is able to achieve an approximate optimum. To reduce the complexity, they transform this original problem into a relaxed semi-definite programming problem based on loose bounds, which can be solved efficiently. It is shown from simulation results that their proposed methods outperform the non-robust scheme.
Original language | English |
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Pages (from-to) | 1221-1228 |
Number of pages | 8 |
Journal | IET Communications |
Volume | 10 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Jul 2016 |
Externally published | Yes |
ASJC Scopus subject areas
- Computer Science Applications
- Electrical and Electronic Engineering