An MMSE Based Calibration of a LINC Transmitter

• NAGAREDA Riichiro

  Tokyo Institute of Technology

• FUKAWA Kazuhiko

  Tokyo Institute of Technology

• SUZUKI Hiroshi

  Tokyo Institute of Technology

Abstract

This paper proposes a new correction technique for a linear amplification with nonlinear components (LINC) transmitter. The technique, which is based on the minimum mean squared error (MMSE) criterion, estimates the gain and phase imbalance between the two amplifier branches. With information on the estimation, the imbalance is offset by controlling the amplitude and phase of the input signal that is fed into one of the two amplifiers. Computer simulations with a DS-CDMA system demonstrate that this method can compensate for the imbalance and sufficiently suppress the out-of-band distortion spectrum.

Journal

• IEICE Trans. Commun., B

  IEICE Trans. Commun., B 87 (3), 689-694, 2004-03-01

  The Institute of Electronics, Information and Communication Engineers

Keywords

• mobile radio communications
• LINC
• least-squares method

Details

• CRID: 1572543027201208832
• NII Article ID: 110003222275
• NII Book ID: AA10826261
• ISSN: 09168516
• Text Lang: en
• Data Source:
  • CiNii Articles