Kentaro Obata

Learn More
This paper proposes and develops a wide area wireless smart utility network (Wi-SUN) system and measures the transmission performance of the system by field experiments. In the wide area Wi-SUN system, a high performance base station (BS) can expand the direct communication distance to wireless devices with sensors and meters by enriching BS functions, i.e.(More)
This paper proposes novel two carrier frequency offset (CFO) estimation schemes to introduce inexpensive oscillators and operate under mobile multipath environments in wide area Wi-SUN systems based on IEEE 802.15.4g. One of the proposed schemes using a moving average low-pass filter (LPF) can compensate CFO within ±20 ppm at 920 MHz completely with(More)
  • 1