Technology for the next generation of digital terrestrial broadcasting : Field experiment of dual polarized MIMO transmission using Circularly and Skew polarization

Abstract

NHK is conducting research on the next generation of digital terrestrial broadcasting to enable large-volume content services such as Super Hi-Vision. We have developed the large capacity transmission technologies using dual polarized MIMO and ultra multi-level OFDM. We have conducted indoor and field experiments on dual polarized MIMO transmission using circularly (right-handed, left-handed) or skew(+45°, -45°) polarized wave in addition to conventional polarization set (horizontal, vertical). We have evaluated the influence of the difference of the received power between horizontal and vertical waves on the transmission characteristics.