Research Member Themes of Thesis Recent Publication Topics Access Japanese

    2014.4 - 2015.3
      1. Satoshi Denno, Masataka Hasebe, Shigeru Tomisato, and Masaharu Hata, “Iterative frequency offset estimation with singular value decomposition for DS-SS wireless sensor networks”, Technical report of IEICE, vol.114, no.84, SRW2014-12, pp.65-70, June 2014.
      2. Masahiro Fujita, Shigeru Tomisato, Satoshi Denno, and Masaharu Hata, “Transmission performance of adaptive sensor collaborative beamforming”, Technical report of IEICE, vol.114, no.165, SR2014-32, pp.69-74, July 2014.
      3. Ren Kataoka, Yusuke Fujisawa, Shigeru Tomisato, and Masaharu Hata, “A distortion noise power control method of OFDM transmission systems for cognitive radio”, Technical report of IEICE, vol.114, no.165, SR2014-35, pp.83-88, July 2014.
      4. Masahiro Fujita, Akane Ogura, Shigeru Tomisato, Satoshi Denno, and Masaharu Hata, “Transmission performance of adaptive sensor collaborative beam forming with frequency offset”, Technical report of IEICE, vol.114, no.177, SRW2014-20, pp.23-28, Aug. 2014.
      5. Takanori Seo, Hideaki Yukue, Takuya Kuribayashi, Takuya Tsutsumi, Shinichi Ichitsubo, Masaharu Hata, and Shigeru Tomisato, “Path loss prediction model for a sloped area in microcell based on scale model and real environment measurements,” Proc. CD of 2014 IEEE Asia Pacific Conference on Wireless and Mobile, APWiMob 2014, pp.78-83, Aug. 2014.
      6. Masaharu Hata and Kohei Satoh, “International standardization activities for third generation mobile communications system”, IEICE Communication Society Magazine B-plus, 2014 Autumn, vol.30, pp.91-94, Sept. 2014.
      7. Masaharu Hata, Fumio Watanabe, Kohei Satoh, Katsuhiko Hiramatsu, Masayoshi Ohashi, Hiroshi Nishimoto, and Shigehiro Ano, “Small talk of international standardization for mobile communications”, IEICE Communication Society Magazine B-plus, 2014 Autumn, vol.30, pp.95-105, Sept. 2014.
      8. Satoshi Denno, Masataka Hasebe, Shigeru Tomisato, and Masaharu Hata, “Iterative SVD-based frequency offset estimation with decorrelation for wireless sensor networks”, Proc. of the 17th International Symposium on Wireless Personal Multimedia Communications, WPMC 2014, PHY-2,　pp.1-6, Sept. 2014.
      9. Shohei Masaki, Shigeru Tomisato, Satoshi Denno, Masaharu Hata, Tatsuo Furuno, and Yasuhiro Oda, “A non-linear distortion noise power control method for multi-band OFDM transmission”, Proc. of the 17th International Symposium on Wireless Personal Multimedia Communications, WPMC 2014, PHY-11,　pp.1-6, Sept. 2014.
      10. Kohei Ohnishi, Shinichi Ichitsubo, Koichi Shin, Masahiro Nishi, Shigeru Tomisato, and Masaharu Hata, “A study of correction method for urban path loss estimation formula applying to sloping areas”, Proc. CD of the 2014 Kyusyu section Joint Convention of the Institutes of Electrical and related Engineers, KJCIEE 2014, no.14-1P-01, p.257, Sept. 2014.
      11. Takanori Seo, Shinichi Ichitsubo, Masaharu Hata, and Shigeru Tomisato, “Prediction of Microcell Propagation loss in line of sight for sloped area”, Proc. CD of the 2014 Kyusyu section Joint Convention of the Institutes of Electrical and related Engineers, KJCIEE 2014, no.14-1P-04, p.260, Sept. 2014.
      12. Shohei Masaki, Shigeru Tomisato, Satoshi Denno, Masaharu Hata, Tatsuo Furuno, and Yasuhiro Oda, “Transmission performance by iterative clipping and filtering in OFDM transmission with multiple bands”, Proc. of the 2014 IEICE Society Conference, vol.Com.1, no.B-5-46, p.317, Sept. 2014.
      13. Masaharu Hata, “Up to and from now on cellular mobile systems”, The 45th Science Cafe of Okayama University, http://www.okayama-u.net/renkei/contents/04_04.html, (in Japanese), Oct. 2014.
      14. Kohei Ohnishi, Tomoya Kodera, Masaharu Hata, and Shigeru Tomisato, “Operation considerations for an emergency vessel base station in a cellular system”, Proc. CD of the 2014 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2014, no.10-1, p.265, Oct. 2014.
      15. Hiroaki Matsuno, Shohei Masaki, Shigeru Tomisato, and Masaharu Hata, “An adaptive filtering method according to out-of-band distortion noise in multi-band cellular systems”, Proc. CD of the 2014 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2014, no.10-1, p.266, Oct. 2014.
      16. Yusuke Fujisawa, Shigeru Tomisato, and Masaharu Hata, “Optimal clipping level evaluation for spectrum sharing systems by OFDM transmission”, Proc. CD of the 2014 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2014, no.10-1, p.267, Oct. 2014.
      17. Takashi Ochi, Shigeru Tomisato, and Masaharu Hata, “Performance evaluation of mobile relay transmission in fading channels”, Proc. CD of the 2014 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2014, no.10-1, p.268, Oct. 2014.
      18. Ren Kataoka, Shigeru Tomisato, and Masaharu Hata, “Non-linear distortion noise control according to modulation schemes for spectrum sharing systems”, 2014 Singapore - Japan International Workshop on Smart Wireless Communications, SmartCom2014, Technical report of IEICE, vol.114, no.284, SR2014-59, pp.1-6, Oct. 2014.
      19. Hiroyuki Takahashi, Kohei Ohnishi, Masahiro Nishi, Koichi Shin, Shinichi Ichitsubo, Shigeru Tomisato, and Masaharu Hata, “A study of path loss correction formula a cellular base station looking down at sloping ground area”, Technical report of IEICE, vol.114, no.294, AP2014-141, pp.73-78, Nov. 2014.
      20. Yusuke Fujisawa, Shigeru Tomisato, and Masaharu Hata, “An allocation method of non-linear distortion noise power for spectrum sharing systems by OFDM transmission”, Proc. of the 16th IEEE Hiroshima Student Symposium, no.B-22, pp.1-4, Nov. 2014.
      21. Takashi Ochi, Shigeru Tomisato, and Masaharu Hata, “Performance evaluation of mobile relay transmission in fading channels”, Proc. of the 16th IEEE Hiroshima Student Symposium, no.A-23, pp.1-4, Nov. 2014.
      22. Satoshi Denno, Masataka Hasebe, Shigeru Tomisato, and Masaharu Hata, “Iterative frequency offset estimation with singular value decomposition for DS-SS wireless sensor networks”, IEICE Trans. Commun., vol.J97-B, no.12, p.1199-1212, Dec. 2014.
      23. Hiroaki Matsuno, Shigeru Tomisato, Satoshi Denno, Masaharu Hata, Tatsuo Furuno, and Yasuhiro Oda, “Experimental evaluation of error vector magnitude in LTE signal transmission by visible light communication”, Technical report of IEICE, vol.114, no.367, SRW2014-41, pp.35-38, Dec. 2014.
      24. Koichi Shin, Masahiro Nishi, Masaharu Hata, Shinichi Ichitsubo, and Shigeru Tomisato, “A study of urban path loss estimation for slope terrain areas using geographical road information”, Technical report of IEICE, AP2015-175, pp.79-84, Jan. 2015.
      25. Hiroaki Matsuno, Shigeru Tomisato, Satoshi Denno, Masaharu Hata, Tatsuo Furuno, and Yasuhiro Oda, “Experimental evaluation of error vector magnitude in LED visible light communications”, Proc. CD of the 2015 IEICE General Conference, vol.Com.1, no.B-19-14, p.640, March 2015.
    2013.4 - 2014.3
      1. Atsushi Ikeda, Shigeru Tomisato, Hiromasa Fujii, and Masaharu Hata, “A transmission power control method by interference power estimation in shared frequency bands”, Technical report of IEICE, vol.113, no.8, RCS2013-19, pp.101-106, April 2013.
      2. Shigeru Tomisato, Hiromasa Fujii, and Masaharu Hata, “Out-of-band distribution noise power estimation of OFDM signals caused by low noise block converter saturation in spectrum sharing”, IEICE Trans. Commun., vol.J96-B, no.8, p.850-858, Aug. 2013.
      3. Takuya Beppu, Shigeru Tomisato, Satoshi Denno, and Masaharu Hata, “Transmission performance improvement of sensor collaborative beam forming by adaptive transmission”, Technical report of IEICE, vol.113, no.180, SRW2013-26, pp.33-36, Aug. 2013.
      4. Masataka Hasebe, Satoshi Denno, Shigeru Tomisato, and Masaharu Hata, “SVD-based frequency offset estimation in the presence of co-channel interference for DS-SS sensor networks”, 2013 International Conference on Sensor Network and Mobile Computing, ICSNMC 2013, pp.24.1-24.5, Sept. 2013.
      5. Takanori Hirai, Kazuki Hayashi, Koichi Shin, Masahiro Nishi, Masaharu Hata, and Shigeru Tomisato, “A study of path loss correction formula for different slope terrain areas”, Proc. of the 2013 IEICE Society Conference, vol.Com.1, no.B-1-7, p.7, Sept. 2013.
      6. Atsushi Ikeda, Shigeru Tomisato, and Masaharu Hata, “Frequency band utilization efficiency to sub- carrier spacing of spectrum sharing systems”, Proc. of the 2013 IEICE Society Conference, vol.Com.1, no.B-5-18, p.381, Sept. 2013.
      7. Takanori Hirai, Takanori Seo, Shinichi Ichitsubo, Masaharu Hata and Shigeru Tomisato, “A study of path loss characteristic of cellular base station looking up at sloping Area”, Proc. CD of the 2013 Kyusyu section Joint Convention of the Institutes of Electrical and related Engineers, KJCIEE 2013, no.01-2A-10, p.307, Sept. 2013.
      8. Takanori Seo, Hiroyuki Takahashi, Shinichi Ichitsubo, Masaharu Hata, and Shigeru Tomisato, “Study on microcell propagation loss for slope terrain area using a scale model”, Proc. CD of the 2013 Kyusyu section Joint Convention of the Institutes of Electrical and related Engineers, KJCIEE 2013, no.01-2A-11, p.308, Sept. 2013.
      9. Shouhei Masaki, Shigeru Tomisato, and Masaharu Hata, “Transmission performance of cellular systems using multiple frequency bands”, Proc. CD of the 2013 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2013, no.10-2, p.215, Oct. 2013.
      10. Ren Kataoka, Shigeru Tomisato, and Masaharu Hata, “Transmission power control for spectrum sharing systems with adaptive modulation”, Proc. CD of the 2013 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2013, no.10-3, p.216, Oct. 2013.
      11. Masahiro Fujita, Takuya Beppu, Shigeru Tomisato, and Masaharu Hata, “Power saving effect of sensor collaborative beam forming by adaptive transmission”, Proc. CD of the 2013 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2013, no.10-4, p.217, Oct. 2013.
      12. Hiroyuki Takahashi, Kazuki Hayashi, Takanori Hirai, Koichi Shin, Masahiro Nishi, Masaharu Hata, and Shigeru Tomisato, “A study of path loss characteristic of cellular base station looking down at sloping area”, Proc. CD of the 2013 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2013, no.10-5, p.218, Oct. 2013.
      13. Takanori Seo, Hideaki Ikue, Takuya Kuribayashi, Takuya Tsutsumi, Shinichi Ichitsubo, Masaharu Hata, and Shigeru Tomisato, “A study of correction method to predict path loss for sloping area based on measurement of scale model and actual environment”, Doc. of the 577th URSI-F Meeting, no.2, pp.1-9, Nov. 2013.
      14. Masataka Hasebe, Satoshi Denno, Shigeru Tomisato, and Masaharu Hata, “Iterative frequency offset estimation based on singular value decomposition”, Proc. of 2013 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2013, no.WM1-E-5, pp.125-130, Nov. 2013.
      15. Kazuki Hayashi, Takanori Hirai, Koichi Shin, Masahiro Nishi, Masaharu Hata, Shinichi Ichitsubo, Shigeru Tomisato, and Teruaki Yoshida, “A study on mobile radio propagation path loss characteristic in consideration of several slope areas”, Technical Report of IPSJ SIG Mobile Computing and Ubiquitous Communications (SIG-MBL) , vol.2013-MBL-68, no.12, pp.1-8, Nov. 2013.
      16. Takanori Hirai, Takanori Seo, Shinichi Ichitsubo, Masaharu Hata and Shigeru Tomisato, “Comparison study of path loss correction formula for sloping areas in Okayama and Kokura”, Proc. of the 15th IEEE Hiroshima Student Symposium, no.C-3, pp.1-4, Nov. 2013.
      17. Kohei Onishi, Takanori Hirai, Hiroyuki Takahashi, Masaharu Hata and Shigeru Tomisato, “Prior estimation of dominant parameter in path loss correction formula for sloping area”, Proc. of the 15th IEEE Hiroshima Student Symposium, no.C-6, pp.1-4, Nov. 2013.
      18. Masahiro Fujita, Takuya Beppu, Shigeru Tomisato, Satoshi Denno, and Masaharu Hata, “Power consumption reduction effect of adaptive sensor collaborative beamforming”, Proc. of the 15th IEEE Hiroshima Student Symposium, no.C-12, pp.1-4, Nov. 2013.
      19. Takanori Seo, Hideaki Ikue, Takuya Kuribayashi, Takuya Tsutsumi, Shinichi Ichitsubo, Masaharu Hata, and Shigeru Tomisato, “A study of correction method for sloping area path loss estimation based on a scale model and actual measurements”, Technical report of IEICE, vol.113, no.384, AP2013-156, pp.129-134, Jan. 2014.
      20. Shouhei Masaki, Shigeru Tomisato, Satoshi Denno, Masaharu Hata, Tatsuo Furuno, and Yasuhiro Oda, “Out-of-band distortion noise of OFDM transmission with multiple frequency bands ”, Technical report of IEICE, vol.113, no.400, SR2013-93, pp.97-102, Jan. 2014.
      21. Takanori Hirai, Takanori Seo, Kazuki Hayashi, Shinichi Ichitsubo, Koichi Shin, Masahiro Nishi, Masaharu Hata, and Shigeru Tomisato, “Path loss characteristic comparisons for sloping ground areas in urban cities”, Proc. CD of the 2014 IEICE General Conference, vol.Com.1, no.B-1-9, p.9, March 2014.
      22. Shouhei Masaki, Shigeru Tomisato, Satoshi Denno, Masaharu Hata, Tatsuo Furuno, and Yasuhiro Oda, “Non-linear distortion noise reduction in OFDM transmission with multiple bands”, Proc. CD of the 2014 IEICE General Conference, vol.Com.1, no.B-5-22, p.417, March 2014.
      23. Masahiro Fujita, Takuya Beppu, Shigeru Tomisato, Satoshi Denno, and Masaharu Hata, “Effects of transmission phase error in adaptive sensor collaborative beam forming”, Proc. CD of the 2014 IEICE General Conference, vol.Com.1, no.B-19-26, p.658, March 2014.
    2012.4 - 2013.3
      1. Shigeto Tajima, Nobuo Funabiki, Shigeru Tomisato, Masaharu Hata, and Teruo Higashino, “A generalization of WDS clustering algorithm extension to smart-antenna in wireless mesh networks”, Technical report of IEICE, vol.112, no.8, NS2012-7, pp.37-42, April 2012.
      2. Seiichiro Okamoto, Shigeru Tomisato, Hiromasa Fujii, Masaharu Hata, Shunji Miura, and Hidetoshi Kayama, “Non-linear distortion noise control by clipping and filtering in spectrum sharing systems”, Proc. of 2012 IEEE 75th Vehicular Technology Conference Spring, VTC2012-Spring, pp.7A.3.1-7A.3.5, May 2012.
      3. Hiroaki Hirai, Shigeru Tomisato, Satoshi Denno, and Masaharu Hata, “A collaborative beam forming method by transmitting sensor selection for sensor networks”, Technical report of IEICE, vol.112, no.10, SRW2012-15, pp.33-38, Aug. 2012.
      4. Masataka Hasebe, Satoshi Denno, Shigeru Tomisato, and Masaharu Hata, “Frequency offset estimation under co-channel interference conditions for sensor networks”, Technical report of IEICE, vol.112, no.10, SRW2012-16, pp.39 -44, Aug. 2012.
      5. Seiichiro Okamoto, Shigeru Tomisato, Hiromasa Fujii, Masaharu Hata, Shunji Miura, and Hidetoshi Kayama, “Transmission performance improvement by non-linear distortion noise control in spectrum sharing”, Technical report of IEICE, vol.112, no.192, RCS2012-101, pp.31-36, Aug. 2012.
      6. Seiichiro Okamoto, Shigeru Tomisato, Hiromasa Fujii, Masaharu Hata, Shunji Miura, and Hidetoshi Kayama, “A non-linear noise control method for adaptive modulation in spectrum sharing”, Proc. of the 2012 IEICE Society Conference, vol.Com.1, no.B-5-47, p.411, Sept. 2012.
      7. Tomohiro Ohira, Hideaki Yukue, Takanori Seo, Shinichi Ichitsubo, Masaharu Hata and Shigeru Tomisato, “An experimental study of mobile path loss characteristic in a slope terrain area”, Proc. CD of the 2012 Kyusyu section Joint Convention of the Institutes of Electrical and related Engineers, KJCIEE 2012, no.08-2A-04, p.428, Sept. 2012.
      8. Hideaki Yukue, Takanori Seo, Tomohiro Ohira, Shinichi Ichitsubo, Masaharu Hata, and Shigeru Tomisato, “Microcell propagation loss for slope terrain area”, Proc. CD of the 2012 Kyusyu section Joint Convention of the Institutes of Electrical and related Engineers, KJCIEE 2012, no. 08-2A-05, p.429, Sept. 2012.
      9. Shigeto Tajima, Nobuo Funabiki, Shigeru Tomisato, Masaharu Hata, and Teruo Higashino, “An extension of clustering algorithm for smart-antenna use in wireless mesh networks”, Proc. of the 1st IEEE Global Conference on Consumer Electronics 2012, GCCE 2012, pp.647-651, Oct. 2012.
      10. Tomohiro Ohira, Takanori Hirai, Shigeru Tomisato, and Masaharu Hata, “A study of mobile path loss estimation models for a sloping terrain area in cellular systems”, Proc. of the 18th Asia-Pacific Conference on Communications, APCC 2012, IV-4.4, pp.472-477, Oct. 2012.
      11. Seiichiro Okamoto, Shigeru Tomisato, Hiromasa Fujii, Masaharu Hata, Shunji Miura, and Hidetoshi Kayama, “An adaptive non-linear distortion noise control method for spectrum sharing systems”, Proc. of the 18th Asia-Pacific Conference on Communications, APCC 2012, III-2.2, pp.272-277, Oct. 2012.
      12. Takanori Hirai, Tomohiro Ohira, Shigeru Tomisato, and Masaharu Hata, “A study of path loss estimation by Lee model for slope terrain area in cellular systems”, Proc. CD of the 2012 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2012, no.11-4, p.141, Oct. 2012.
      13. Takuya Beppu, Shigeru Tomisato, Satoshi Denno, and Masaharu Hata, “An adaptive transmission method for collaborative beam forming in sensor networks”, Proc. CD of the 2012 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2012, no.10-6, p.238, Oct. 2012.
      14. Atsushi Ikeda, Shigeru Tomisato, and Masaharu Hata, “Transmitter power control based on interference power estimation for low-priority systems in spectrum sharing systems”, Proc. CD of the 2012 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2012, no.10-8, p.241, Oct. 2012.
      15. Masataka Hasebe, Shigeru Tomisato, and Masaharu Hata, “Performance evaluation of mobile relay transmission with propagation delay”, Proc. CD of the 2012 Chugoku section Joint Convention of the Institutes of Electrical and related Engineers, CJCIEE 2012, no.10-9, p.242, Oct. 2012.
      16. Takanori Hirai, Tomohiro Ohira, Shigeru Tomisato, and Masaharu Hata, “Comparison of path loss estimation models for slope terrain area in cellular systems”, Proc. CD of the 14th IEEE Hiroshima Student Symposium, no.A-45, pp.133-136, Nov. 2012.
      17. Toshinobu Komabayashi, Shigeru Tomisato, and Masaharu Hata, “Interference reduction effect by spectrum shaping for spectrum sharing systems”, Proc. CD of the 14th IEEE Hiroshima Student Symposium, no.B-44, pp.404-407, Nov. 2012.
      18. Masataka Hasebe, Satoshi Denno, Shigeru Tomisato, and Masaharu Hata, “Performance enhancement of the SVD-based frequency offset estimation”, Technical report of IEICE, vol.112, no.13, SRW2012-30, pp.27-32, Dec. 2012.
      19. Atsushi Ikeda, Shigeru Tomisato, Hiromasa Fujii, and Masaharu Hata, “An interference power estimation method for low-priority systems in spectrum sharing systems”, Technical report of IEICE, vol.112, no.406, SR2012-77, pp.33-38, Jan. 2013.
      20. Yuya Matsumoto, Satoshi Denno, Shigeru Tomisato, and Masaharu Hata, “Frequency offset estimation in the presence of co-channel interference for wireless sensor networks”, IEICE Trans. Commun., vol.J96-B, no.2, p.171-179, Feb. 2013.
      21. Atsushi Ikeda, Shigeru Tomisato, Hiromasa Fujii, and Masaharu Hata, “Unused-band utilization efficiency of spectrum sharing system by interference power estimation”, Proc. CD of the 2013 IEICE General Conference, vol.Com.1, no.B-5-82, p.492, March 2013.

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