Title :
Simultaneous Information and Power Transfer Scheme for Energy Efficient MIMO Systems
Author :
Qi Sun ; Lihua Li ; Junling Mao
Author_Institution :
State Key Lab. of Networking & Switching Technol., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
This letter studies the energy efficiency (EE) optimization problem for the simultaneous wireless information and power transfer (SWIPT) MIMO systems with statistical channel state information (CSI) feedback. Considering the further transmission of the energy harvesting node, the potential capacity produced by the transferred energy is counted in system capacity. Both the optimal algorithm and the low complexity sub-optimal algorithm are proposed. Simulation results show the superiority of the proposed schemes on EE.
Keywords :
MIMO communication; energy conservation; energy harvesting; optimisation; radiofrequency power transmission; telecommunication power management; CSI feedback; MIMO systems; SWIPT systems; energy efficiency optimization; energy harvesting node; low complexity suboptimal algorithm; multiple-input multiple-output; simultaneous wireless information and power transfer; statistical channel state information; Complexity theory; MIMO; Optimization; Receivers; Resource management; Transmitters; Wireless communication; Energy efficiency; MIMO; covariance feedback; energy harvesting;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2014.022514.132763
