Title :
Massive MIMO With Joint Power Control
Author_Institution :
Sch. of Inf. & Commun., Gwangju Inst. of Sci. & Technol. (GIST), Gwangju, South Korea
Abstract :
To support cell-edge users with certain quality-of-service (QoS), base stations (BSs) may need to exchange their channel state information (CSI), which would not be practical in a massive multiple-input multiple-output (MIMO) system. In this paper, joint power control is considered for QoS when noncooperative beamforming is used, which results in a low overhead to exchange limited CSI between BSs. For joint power control, we derive bounds on signal-to-interference-plus-noise ratio (SINR) in terms of slow-fading coefficients. Due to joint power control, a better performance is achieved.
Keywords :
MIMO communication; array signal processing; cellular radio; fading channels; power control; quality of service; radiofrequency interference; telecommunication power management; BS; CSI; QoS; SINR; base station; cell-edge users; channel state information; joint power control; massive MIMO; massive multiple-input multiple-output system; noncooperative beamforming; quality-of-service; signal-to-interference-plus-noise ratio; slow-fading coefficients; Array signal processing; Interference; Joints; MIMO; Power control; Signal to noise ratio; Vectors; Joint power control; massive multiple-input multiple-output (MIMO);
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/LWC.2014.2315039
