Activity Report of URSI Commission C Japan

2004.11.15

Takashi Ohira

1. The 1st Scientific Workshop on Radio Signal and Systems

1. Convener: Dr. Kenji Itoh

2. Date/time: 1PM - 4PM, January 30th, 2004

3. Venue: Mobile Terminal Center, Mitsubishi Electric Corporation

(Amagasaki, Hyogo, Japan)

4. Local arrangement: Dr. Kenji Itoh, Mitsubishi Electric Co.

5. Registration fee: Free

6. Listed attendees: 79 persons

7. Session title: Towards future radio systems

8. Presentation: 40 min, Q&A: 10 min.

  (a) “MMW imaging techniques: Visible world with MMW sensors,” Prof. Koji Mizuno (Tohoku Univ.)

 (b) “Analog smart antenna: Expected function for IT world,” Dr. Takashi Ohira (ATR)

 (c) “Digital TV techniques in mobile cellular phones: Technical challenges,” Prof. Minoru Okada (Nara Institute of Science and Technology)

9. Reception

Venue: Kosen-kaku, Arima-spa, Kobe, Hyogo Attendees: 15 persons

10. We had the steering committee meeting from 9AM to 12AM in January 31st, 2004.

11. Conclusion by the local arrangement

(a) This scientific workshop is organized with the objective of “migration of different research regions dedicated for radio systems ”. Based on the objective, speakers for the MMW imaging, the next generation radio communication and the digital TV were invited for this workshop. The workshop was very successful with 79 attendees and very tight discussions for future radio techniques. As the objective, cross-functional discussions were done on several research regions (AP:Antenna and Propagation, MW:MicroWave,and RCS: Radio Communication Systems).

(b) For keeping the good direction of the discussion as in this scientific workshop, following criteria is agreed in the steering committee:

- Main topic/concept should be decided for each workshop,

- Based on the topic/concept, speakers are invited from the technical region of AP/MW/RCS.

2. The 2nd Scientific Workshop on Radio Signal and Systems

1. Convener: Dr. Yukihiro Kamiya, Tokyo University of Agriculture and Technology

2. Date/time: 10h45 - 16h00, 28 May, 2004

3. Venue: Research Institute of Electrical Communication, Tohoku University

(Sendai, Japan)

4. Registration fee: Free

5. Listed attendees: 79 persons

6. Local arrangement: Mizuno Lab., Sawaya Lab., and Adachi Lab.

7. Session title: “ONKOCHISHIN, attempts to discover new electro-magnetic technology by studying the past through scrutiny of the old”

8. Presentation: 60 min, Q&A: 30 min. for each speaker

 (a) “Numerical Analysis and Evaluations of Antennas for Mobile Communication Systems,” Prof. Kunio Sawaya, Tohoku University

 (b) “The History of R&D at Sendai: From YAGI Antenna to Optical Fibers,” Dr. Ken Sudou, President, Semiconductor Research Institute, on behalf of Dr. Jun’ichi Nishizawa, President, Iwate Prefectural University

 (c) “Technical Challenges Towards Future Mobile Communication Systems,” Prof. Fumiyuki Adachi, Tohoku University

9. Reception

Venue: Hotel “SAKAN”, Sendai, Japan

Attendees: 20 persons

10. The steering committee meeting took place from 9h00 to 12h00 on 29 May,2004.

11. Concluding Remarks

 (a) This scientific workshop was organized based on the keyword “ONKOCHISHIN”, meaning in Chinese that attempts to discover new things by studying the past through scrutiny of the old. As this keyword implies, lectures included in this workshop lied on various aspects of telecommunication technology from the history of R&D on electro-magnetism to the latest topic towards the future mobile communication systems.

 (b) Q&A slots over 30 minutes following each lecture for Q&A animated quite intensive discussions.

 

 

 

 

3. The 3rd Scientific Workshop on Radio Signal and Systems

1. Convener: Prof. Hiroyoshi Yamada,Niigata University

2. Date/time: 13h00 - 16h30,20 July, 2004

3. Venue: Graduate School of Information Science and Technology, Hokkaido University (Sapporo,  Japan)

4. Registration fee: Free

5. Listed attendees: 35 persons

6. Local arrangement: Ogawa Lab.

7. Session title: “Radio Waves from the Northern Country

8. Presentation: 60 min including Q&A for each speaker

(a) “Photonic Fiber: Its Theoretical aspect,” Dr. Kunimasa Saitoh on behalf of Prof. Masanori Koshiba, Hokkaido University

(b) “Multi Antenna Signal Processings: Smart Antenna and MIMO,” Prof. Yasutaka Ogawa, Hokkaido University

(c) “Local Economic Promotion and Mobile Communication Systems,” Prof. Masaaki Shinji, Tokai University

9. Reception

Venue: Jasmac Plaza Hotel,Sapporo, Japan

Attendees: 12 persons

10. The steering committee meeting took place from 11h00 to 12h00 and from 16h30 to 17h15 on 20 July,2004.

11. Concluding Remarks

(a) This scientific workshop was organized based on the keyword "Radio Waves, from Northern Country." As this keyword implies, the workshop laid emphasis on a various researches by top researchers in Hokkaido prefecture. The topics included recent progress on fiber optics and multiple antenna signal processing technology. In addition role of mobile communications for local promotion was discussed. The meeting was very successful with 35 attendees and very tight discussions.

(b) Only afternoon sessions were scheduled in the meeting. Q&A slots seemed to be slightly short, however, we had quite intensive discussions.

 

 

 

 

 

4. The 4th Scientific Workshop on Radio Signal and Systems

1. Convener: Dr. Makoto Taromaru, ATR Wave Engineering Laboratories.

2. Date/time: 13:00 – 17:30, 22-Oct.-2004

3. Venue: Yufugo-kan, a resort house of Mitsubishi Electric, Yufuin, Japan.

4. Registration fee: Free

5. Listed attendees: 25 persons

6. Local arrangement: Information Technology R & D Center, Mitsubishi Electric.

7. Session title: “Radio Waves and Challenge to the Shannon Limit”

8. Presentation: 60 min including Q&A for each speaker

(a) “History of Digital Mobile Communications,” Prof. Yoshihiko Akaiwa, Kyushu University

(b) “Enlargement of Mobile Communications Capacity with Interference Suppression and Multipath Separation,” Prof. Hiroshi Suzuki, Tokyo Institute of Technology

(c) “Studies of New Modulation Scheme to Improve Spectrum Efficiency,” Mr. Gen-ichiro Ota, Panasonic Mobile Communications.

9. Reception and Lamp Session

(a) “Evolution Theory Found in Cellular Telephone Technologies,” Dr. Kenji Itoh, Mitsubishi Electric.

(b) “Digital Radio Communication Theory that I Have Learnt through Radio Amateur,” Dr. Makoto Taromaru, ATR Wave Engineering Laboratories.

10. The steering committee meeting took place from 09:00 to 10:00 on 23-Oct.-2004.

11. Concluding Remarks

 This scientific workshop was organized based on the keyword “Radio Waves and Challenge to the Shannon Limit.” As this keyword, the specialists of modulation and demodulation were invited. The meeting was very successful with 25 attendees and the discussions after each presentation were well activated. Mr. Ota’s presentation especially, in which he says he can make the bandwidth half by his modulation scheme, made the discussions of everybody hot as the Spa of Yufuin is.

 

This workshop was held under the cosponsorship of IEEE APS, MTS, and VTS Japan Chapters.