|
OFDM-MIMO WLAN AP front-end gain and phase mismatch calibration Host Publication: IEEE Radio and Wireless Conference (RAWCON 2004), Atlanta, GA, September 19-22, 2004 Authors: J. Liu, A. Bourdoux, J. Craninckx, P. Wambacq, B. Come, S. Donnay and A. Barel Publication Date: Sep. 2004 Number of Pages: 4
Abstract: This paper presents a front-end gain and phase mismatch calibration scheme for OFDM-MIMO/TDD WLAN systems using transmit-processing, where the complete channel reciprocity and calibration of the access point hardware is needed. Simulation results for a single-user 2x2 OFDM-MIMO system with QAMᇔ modulation show that our calibration method can reduce the implementation loss to as little as 0.2 dB at a coded BER of 10(LJ). The calibration scheme has been implemented and demonstrated by IMEC.
|
