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Dive into the research topics where Fumio Ishizu is active.

Publication


Featured researches published by Fumio Ishizu.


personal, indoor and mobile radio communications | 2006

Implementation of 324Mbit/sec WLAN equipment

Hiroshi Oguma; Hiroyuki Nakase; Suguru Kameda; Kazuo Tsubouchi; Mari Ochiai; Yukimasa Nagai; Akinori Fujimura; Yoji Isota; Fumio Ishizu

We developed a high speed wireless LAN prototype in the 5 GHz band. The developed WLAN equipment had a data rate of 324 Mbit/sec using 6 PHY transmission channels of IEEE 802.11a. We presented the system of 324 Mbit/sec WLAN equipment focus on PHY layer using high grade FPGA devices. In this system, we proposed channels-interleave to improve characteristics of the equipment under multi-path environment. We confirmed that the effect of channels-interleave was about 2-4 dBm under a wireless condition of 324 Mbit/sec


Archive | 1998

Transmitter, receiver and power control in a data transmission system

Fumio Ishizu; Keishi Murakami; Akinori Taira


Archive | 2007

Channel assignment notifying method, communication method and communication apparatus

Noriyuki Fukui; Shigenori Tani; Fumio Ishizu


Archive | 2012

Channel allocation notifying method, communication method, and communication apparatus

Noriyuki Fukui; Shigenori Tani; Fumio Ishizu


Archive | 1999

Radio terminal unit

Takatoshi Katsura; Kenji Itoh; Shinjirou Fukuyama; Mitsuru Mochizuki; Hiroaki Nagano; Yoshinori Matsunami; Fumio Ishizu; Ryoji Hayashi


Archive | 2007

Meldeverfahren für Kanalzuweisung

Noriyuki Fukui; Shigenori Tani; Fumio Ishizu


Archive | 2007

Channel assignment notifying methods

Noriyuki Fukui; Shigenori Tani; Fumio Ishizu


Archive | 2007

Meldeverfahren für kanalzuweisung, kommunikationsverfahren und kommunikationsgerät

Noriyuki Fukui; Fumio Ishizu; Shigenori Tani


Electronics and Communications in Japan Part I-communications | 2006

A study of adaptive modulation technique in OFDM

Tsutomu Usui; Fumio Ishizu; Keishi Murakami


Electronics and Communications in Japan Part I-communications | 2006

Performance of channel estimation schemes for multicarrier systems

Akinori Taira; Yoshitaka Hara; Fumio Ishizu; Keishi Murakami

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