Journal
IEEE WIRELESS COMMUNICATIONS LETTERS
Volume 3, Issue 4, Pages 329-332Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2014.2315039
Keywords
Joint power control; massive multiple-input multiple-output (MIMO)
Categories
Funding
- GIST College GUP Research Fund
- Ministry of Science, ICT & Future Planning, Republic of Korea [GIST-10] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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.
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