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NICT REPORT 47Research HighlightsUninterrupted communi-cation for users moving at 500km/hProof of concept demonstration of high-capacity seamless communication for high-speed railwaysCONNECTThe demands for high-speed and smooth communications are rapidly increasing, includ-ing from users who are on rapidly moving vehicles such as high-speed trains, because of the explosive popu-larization of smartphones and other personal multimedia devices. In cur-rent cellular networks, however, con-nections to Internet networks during high-speed movement are frequently interrupted because of radio station switching (handover). NICT Network System Research In-stitute (NSRI) researchers performed a proof-of-concept demonstration of an uninterrupted communication system for high-speed trains by combining a linear cell network configuration, a high-speed seamless fiber-wireless system in the millimeter-wave (mmWave) band, and an ultra-fast opti-cal-path switching technique. This work was conducted as part of a proj-ect titled “Research and development of millimeter-wave backhaul technolo-gy for high-speed vehicles” funded by An application of smartphone technology to collect visual search data (right) and emotional status (left) in everyday lifeA happiness level dynamically changes in everyday life.Visual search times were significantly faster for high happiness levels than for low happiness levels. The result indicates that emotional status could be estimated by measuring visual search times using a smartphone application.Recoding visual search time to find a target in noise (distractors)Recoding emotional statusFig.2 : Smartphone application to collect emotional status and visual performance in everyday life