Tomohisa Wada

Wada
Faculty: Faculty of Engineering Department of Information
EngineeringPosition: Professor









Profile

Research Field

Electronic Device/Electronic Equipment
Communication/Network Engineering
Keywords:Wireless Communocation Signal Processing

Academic Background
  • Graduate School
  • Stanford University , (Master course , Computer Hardware , Electrical Engineering) , 1992(Completed)

  • College
  • Osaka University , (Electronic Engineering , Faculty of Engineering) , 1983(Graduated)

  • Degree
  • Doctor of Engineering , Osaka University

Research Career
  • Research Career
  • 2010 – , University of the Ryukyus, Faculty of Engineering, Department of Information Engineering, Computer Systems, Department Chair
    2001 – , Magna Design Net, Inc., Chief Scientist
    1999 – , University of the Ryukyus, Faculty of Engineering, Department of Information Engineering, Computer Systems, Professor

  • Other Career
  • 1983 – 1999 , Mitsubishi Electric Corporation, Technical staff

  • Overseas Education
  • 1990 – 1992 , Stanford University, Electrical Engineering, Master course

Research

Books&Articles
  • Books
    1. 琉球大学編 知の津梁 やわらかい南の学と思想・3
      沖縄タイムス社 2010(Mar.)
    2. MOSスタティックRAMの高速化に関する研究
      , 博士論文 1994(Nov.)
      Author:和田知久
  • Articles
    1. MIMO SPACE-TIME BLOCK CODES AND CHANNEL ESTIMATION FOR MOBILE WiMAX DL-PUSH
      IJICIC , International Journal of Innovative Computing, Information and Control , 6(11) 2010(Nov.)
      Author:Phuong Thi Thu Pham, TomohisaWada
    2. Pilot-aided Channel Estimation for WiMAX 802.16e Downlink Partial Usage of Subchannel System Using Least Squares Line Fitting
      IEICE , Transaction on Communication , E93-B(06):1494-1501 2010(Jun.)
      Author:Phuong T. T. Pham and Tomohisa Wada
    3. Applications of Adaptive Belief Propagation Decoding for Long Reed-Solomon Codes
      Springer , Advances in Computer Science and Information Technology , 6059:150-158 2010(Jun.)
      Author:Zhian Zheng , Dang Hai Pham and Tomohisa Wada
    4. Modified Structures of Viterbi Algorithm for Forces-State Method in Concatenated Coding and System of ISDB-T
      Springer , Advances in Computer Science and Information Technology , 6059:239-249 2010(Jun.)
      Author:Zhian Zheng , Yoshitomo Kaneda , Dang Hai Pham and Tomohisa Wada
    5. Effective Scheme of Channel Tracking and Estimation for Mobile WiMAX DL-PUSH Systems
      Hindawi Publishing Corporation , Journal of Computer Systems, Networking, and Communications , 2010(Article ID 806279) 2010(Mar.)
      Author:Phuong Thi Thu Pham, TomohisaWada
    6. Performance Analysis of a Joint Space-Time Block Codes and Channel Estimation Scheme in DL-PUSH Mode of Mobile WiMAX(共著)
      , Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunication Engineering Springer , 16(2):101-112 2009(Dec.)
      Author:Phuong T. T. Pham, Tomohisa Wada
    7. The Implementation of a 2/4/8 Antennas Configurable Diversity OFDM Receiver for Mobile HDTV Reception
      Hindawi Publishing Corporation , International Journal of Digital Multimedia Broadcasting , 2009 2009(Dec.)
      Author:Jing Gao, Takashi Iida, Hiroyuki Mizutani, Sadanori Sakaguchi, Shuji Murakami, Atsushi Shimizu, Tomohisa Wada
    8. Implementation of Joint Pre-FFT Adaptive Array Antenna and Post-FFT Space Diversity Combining for Mobile ISDB-T Receiver (共著)
      , IEICE TRAN. COMMUNICATIONS , E91-B(1):127-138 2008(Jan.)
      Author:Dang Hai PHAM, Jing Gao, Takanobu TABATA, Hirokazu ASATO, Satoshi HORI, Tomohisa Wada
    9. Joint Hardware-Software Implementation of Adaptive Array Antenna for ISDB-T Reception (共著)
      , IEICE TRANS. COMMINICATIONS , E89-B(12):3215-3244 2006(Dec.)
      Author:Dang Hai PHAM, Takanobu TABATA, Hirokazu ASATO, Satoshi HORI, Tomohisa Wada
    10. A 500MHz Pipelined Burst SRAM with Improved SER Immunity (共著)
      , IEEE J. Solid-State Circuits , SC-34(11):1571-1579 1999(Oct.)
      Author:Hirotoshi Sato, Tomohisa Wada, Shigeki Ohbayashi, Kunihiko Kozaru, Yasuyuki Okamoto, Yoshiko Higashide, Tadayuki Shimizu, Yukio Maki, Rui Morimoto, Hisakazu Otoi, Tsuyoshi Koga, Hiroki Honda, Makoto Taniguchi, Yutaka Arita, Toru Shiomi
    11. A 5-MHz, 3.6-mW, 1.4-V SRAM with Nonboosted, Vertical Bipolar Bit-Line Contact Memory Cell (共著)
      , IEEE J. Solid-State Circuits , SC-33(11):1672-1681 1998(Nov.)
      Author:Hirotoshi Sato, Hideaki Nagaoka, Hiroaki Honda, Yukio Maki, Tomohisa Wada, Yutaka Arita, Kazuhiro Tsutsumi, Makoto Taniguchi, Michihiro Yamada
    12. A 5.8-ns 256-Kb SRAM with 0.4μm Super-CMOS Process Technology (共著)
      , IEICE TRANS. ELECTRON , E80-C(4):566-572 1997(Apr.)
      Author:Kunihiko Kozaru, Atsushi Kinoshita, Tomohisa Wada, Yutaka Arita, Michihiro Yamada
    13. 111-MHz 1-Mbit CMOS Synchronous Burst SRAM Using a Clock Activation Control Method (共著)
      , IEICE TRANS. ELECTRON , E79-C(6):735-742 1996(Jun.)
      Author:Hirotoshi Sato, Shigeki Ohbayashi, Yasuyuki Okamoto, Setsu Kondoh, Tomohisa Wada, Ryuuichi Matsuo, Michihiro Yamada, Akihiko Yasuoka
    14. A 4-Mb SRAM Using a New Hierarchical Bit Line Organization Utilizing a T-Shaped Bit Line for a Small Sized Die (共著)
      , IEICE TRANS. ELECTRON , E79-C(6):743-749 1996(Jun.)
      Author:Yoshiyuki Haraguchi, Toshihiko Hirose, Motomu Ukita, Tomohisa Wada, Masanao Eino, Minoru Saito, Michihiro Yamada, Akihiko Yasuoka
    15. Low-Voltage Operation of a high Resistivity Load SOI SRAM Cell by Reduced Back-Gate Bias Effect (共著)
      , IEICE TRANS. ELECTRON , E78-C(7):812-817 1995(Jul.)
      Author:Yasuo Yamaguchi, Jun Takahashi, Takehisa Yamaguchi, Tomohisa Wada, Toshiaki Iwamatsu, Hans-Oliver Joachim, Yasuo Inoue, Tadashi Nishimura, Natsuro Tsubouchi
    16. A 5.8ns 256K BiCMOS TTL SRAM with T-Shaped Bit Line Architecture (共著)
      , IEEE J. Solid-State Circuits , SC-28:1362-1369 1993(Dec.)
      Author:Toru Shiomi, Tomohisa Wada, Shigeki Ohbayashi, Atsushi Ohba, Hiroki Honda, Yoshiyuki Ishigaki, Masahiro Hatanaka, Shigeo Nagao, Kenji Anami
    17. An Analytical Access Time Model for On-chip Cache Memories (共著)
      , IEEE J. Solid-State Circuits , SC-27:1147-1156 1992(Aug.)
      Author:Tomohisa Wada, Suresh Rajan, Steven A. Przybylski
    18. A 4Mbit CMOS SRAM with 8ns Serial-Access-Time (共著)
      , IEEE J. Solid-State Circuits , SC-26(4):502-506 1991(Apr.)
      Author:Hirotada Kuriyama, Tosihiko Hirose, Shuji Murakami, Tomohisa Wada, Koreaki Fujita, Yasumasa Nishimura, Kenji Anami
    19. A New Soft-Error Phenomenon in ULSI SRAM
      , IECE Trans , E74(4) 1991(Apr.)
      Author:Shuji Murakami, Tomohisa Wada, Masanao Eino, Motomu Ukita, Yasumasa Nishimura, Kenji Anami
    20. Variable Bit-Organization as a New Test Function for Standard Memories (共著)
      , IEEE J. of Solid-State Circuits , SC-26(1):51-54 1991(Jan.)
      Author:Tomohisa Wada, Masanao Eino, Motomu Ukita, Kenji Anami
    21. Simple Noise Model and Low-Noise Data-Output Buffer for Ultrahigh-Speed Memories (共著)
      , IEEE J. of Solid-State Circuits , SC-25(6):1586-1588 1990(Dec.)
      Author:Tomohisa Wada, Masanao Eino, and Kenji Anami
    22. A Study on Fanout Optimization of SRAM Decoder with a Line Capacitance (共著)
      , Trans. Of IEICE , E73(11):1855-1857 1990(Nov.)
      Author:Shigeki Ohbayashi, Tomohisa Wada, Toshihiko Hirose, Kenji Anami
    23. A 14-ns 1-Mbit CMOS SRAM with Variable Bit Organization (共著)
      , IEEE J. Solid-State Circuits , SC-23(5):1060-1066 1988(Oct.)
      Author:Yoshio Kohno, Tomohisa Wada, Kenji Anami, Yuji Kawai, Kojiro Yuzuriha, Takayuki Matsukawa, Shimpei Kayano
    24. A 34-ns 1-Mbit CMOS SRAM Using Triple Poly silicon (共著)
      , IEEE J. Solid-State Circuits , SC-22(5):727-732 1987(Oct.)
      Author:Tomohisa Wada, Toshihiko Hirose, Hirofumi Shinohara, Yuji Kawai, Kojiro Yuzuriha, Yoshio Kohno, Shimpei Kayano
    25. 25-ns 256Kx1/64Kx4 CMOS SRAMs (共著)
      , IEEE J. Solid-State Circuits , SC-21(5):686-691 1986(Oct.)
      Author:Shimpei Kayano, Katsuki Ichinose, Yoshio Kohno, Hirofumi Shinohara, Kenji Anami, Shuji Murakami, Tomohisa Wada, Yuji Kawai, Yoichi Akasaka
    26. A 45-ns 256K CMOS Static RAM with a Tri-Level Word Line (共著)
      , IEEE J. Solid-State Circuits , SC-20(5):929-934 1985(Oct.)
      Author:Hirofumi Shinohara, Kenji Anami, Katsuki Ichinose, Tomohisa Wada, Yoshio Kohno, Yuji Kawai, Yoichi Akasaka, Shinpei Kayano
  • Presentations
    1. ISI and ICI Suppression for Mobile OFDM System by using a Hybrid Two Layer Diversity Receiver
      ICST , Mobileware 2010 2010(Jul.)
      Author:Gao Jing, Tomohisa Wada
    2. Performance Evaluation of Front-end signal processing receiver for ISDB-T Software Defined Radio
      , ITC-CSCC2010 , :486-489 2010(Jul.)
      Author:Tomonori Miyano, Tomohisa Wada
    3. Performance Evaluation for Japan ISDB-T 1seg SDR Processing
      , ITC-CSCC2010 , :438-441 2010(Jul.)
      Author:Yuichiro Sunagawa, Katsutoshi Ikenoya, Tomohisa Wada
    4. Improvement of Channel Estimation for Chineses DTMB SC-MODE
      , ITC-CSCC2010 , :462-465 2010(Jul.)
      Author:Takeshi Kano, Tomohisa Wada
    5. FEC Performance Evaluation of ISDB-T and DTMB systems for Terrestrial Digital TV
      , ITC-CSCC2010 , :470-473 2010(Jul.)
      Author:Muneto Shimabuku, Zhian Zhen, Tomohisa Wada
    6. TCCR Based ISI Cancellation Improvement by Channel Estiomation in DTMB MC-Mode
      , ITC-CSCC2010 , :496-499 2010(Jul.)
      Author:Chisato Iramina, Tomohisa Wada
    7. Modified Structures of Viterbi Algorithm for Forced-state Method in Concatenated Coding System of ISDB-T
      SCRSC , Advanced Communication and Networking 2010 2010(Jun.)
      Author:Zhian Zheng , Yoshitomo Kaneda , Dang Hai Pham and Tomohisa Wada
    8. Applications of Adaptive Belief Propagation Decoding for Long Reed-Solomon Codes
      SCRSC , Advanced Communication and Networking 2010 2010(Jun.)
      Author:Zhian Zheng , Dang Hai Pham and Tomohisa Wada
    9. A Hybrid Adaptive Array and Carrier Diversity Receiver for OFDM Fading Channels – High Performance and Low Complexity-
      , 2009 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2009) , TA2(A):4 2009(Dec.)
      Author:Gao Jing, Tomohisa Wada
    10. Experimental Study of Adaptive Array Antenna System for ISDB-T Mobile Reception(共著)
      , 2009 International Symposium on Antennas and Propagation , TF3(2) 2009(Oct.)
      Author:Takanobu Tabata, Nobuyoshi Kikuma, Tomohisa Wada, Satoshi Hori, Mitoshi Fujimoto, Hirokazu Asato
    11. Performance Analysis of a Joint Space-Time Block Codes and Channel Estimation Scheme in DL-PUSH Mode of Mobile WiMAX (共著)
      , EuropeComm2009 , 1 2009(Aug.)
      Author:Phuong T. T. Pham, Tomohisa Wada
    12. Study on a Delay Measurement Algorithm using Timing Correct Channel (TCCH) in Extended Global Platform (XGP) (共著)
      , ITC-CSCC2009 , S33-D6:1096-1099 2009(Jul.)
      Author:Katsutoshi Ikenoya, Tomohisa Wada
    13. Radio and Sampling Frequency Error Detection Algorithm for Extended Global Platform (XGP) (共著)
      , ITC-CSCC2009 , S33-D6:1092-1095 2009(Jul.)
      Author:Kiyotaka Ishikawa, Tomohisa Wada
    14. The Design of Frequency Domain Inter Carrier Interference (ICI) Canceling Circuit by Radio Frequency Shift for OFDM Receiver (共著)
      , The 15th Workshop on Synthesis and System Integration of Mixed Information Technologies (SASIMI 2009) , R2-12:172-176 2009(Mar.)
      Author:Kenta Nohara, Tomohisa Wada
    15. Evaluation of Diversity Combining System for Mobile Reception in Digital Terrestrial Television Broadcasting (共著)
      , IEEE International Conference on Consumer Electronics 2009 , 6.3 2009(Jan.)
      Author:Takuya Koujita, Tomohisa Wada, Takashi Iida, Yoshikazu Kita, Atsushi Suyama, Sadanori Sakaguchi, Hirokazu Asato, Hiroyuki Mizutani, Atsushi Shimizu
    16. Application of Array Antenna For a High-speed ISDB-T Reception (共著)
      , IEEE HUT-ICCE2008 2008(Jun.)
      Author:Dang Hai Pham, Tomohisa Wada
    17. A 2/4/8 antennas configurable diversity OFDM receiver for mobile HDTV Application (共著)
      , 2008 Symposium on VLSI Circuits 2008(Jun.)
      Author:Tomohisa Wada, Takashi Iida, Hiroyuki Mizutani, Sadanori
      Sakaguchi, Shuji Murakami, Atsushi Shimizu
    18. A Channel Estimation Using Least Square Fitting for OFDMA Downlink Partial Usage Subchannels (共著)
      , International Workshop on Smart Info-Media Systems in Bangkok 2007(Nov.)
      Author:Phuong Thi Thu PHAM, Tomohisa Wada
    19. A mobile reception technology for terrestrial digital TV service in Japan
      , IEEK SUMMER CONFERENCE 2007 2007(Jul.)
      Author:Tomohisa Wada
    20. Experimental Study of Adaptive Array Antenna System for ISDB-T High Speed Mobile Reception (共著)
      , 2007 IEEE International Symposium Antenna , 150.5 2007(Jun.)
      Author:Takanobu Tabata, Hirokazu Asato, Dang Hai Pham, Mitoshi Fujimoto, Nobuyuki Kikuma, Satoshi Hori, Tomohisa Wada
    21. A Software-configurable Adaptive Array Antennna Systems for ISDB-T Reception (共著)
      , IEEE International Conference on Consumer Electronics 2006 , 11.2 2006(Jan.)
      Author:Hirokazu Asato, Takanobu Tabata, Dang Hai PHAM, Hiroyuki Mizutani, kazuhiro Kamiyama, Satoshi Hori, Tomohisa Wada
    22. A Robust Two-Anntenna Digital TV Receiver for Portable Handsets with Ultra-High Interference Cancellation (共著)
      , IEEE International Conference on Consumer Electronics 2006 , 11.2 2006(Jan.)
      Author:Yoshitomo Kaneda, Hajime Toma, Michiru Hori, Sadanori Sakaguchi, Sho Tamaki, Takayoshi Tomoyose, Kunio Morimoto, Shuji Murakami
    23. EXPERIMENTAL STUDY ON ARRAY BEAM FORMING UTILIZIING THE GUARD INTERVAL IN OFDM (共著)
      , 2005 International Symposium on Antennas and Propagation , WD3-3 2005(Aug.)
      Author:Satoshi Hori, Nobuyoshi Kikuma, Tomohisa Wada, Mitoshi Fujimoto
    24. A High-Speed Mobile OFDM Receiver LSI with an Iterative Noise Reduction Filter to Enhance Channel Estimation (共著)
      , IEEE International Conference on Consumer Electronics 2005 , 5.1 2005(Jan.)
      Author:Kazuhiro Kamityama, Hiroyuki Mizutani, Hajime Toma, Yoshimoto Kaneda, Sho Tamaki, Dang Hai PHAM, Tomohisa Wada
    25. An Adaptive Array Direction Control LSI for Mobile Digital HDTV Receive (共著)
      , IEEE International Conference on Consumer Electronics 2005 , 7.4 2005(Jan.)
      Author:Sadanori Sakaguchi, Michiru Hori, Hirokazu Asato, Kunio Morimoto, Shuji Murakami, Tomohisa Wada, Katsushi Sanda, Noburo Ito
    26. A 500MHz Pipelined Burst SRAM with Improved SER Immunity (共著)
      , ISSCC Dig. Tech. Papers 1999(Feb.)
      Author:Tomohisa Wada, Shigeki Ohbayashi, Hirotoshi Sato, Kunihiko Kozaru, Yasuyuki Okamoto, Yoshiko Higashide, Tadayuki Shimizu, Yukio Maki, Rui Morimoto, Hisakazu Otoi, Tsuyoshi Koga, Hiroki Honda, Makoto Taniguchi, Yutaka Arita, Toru Shiomi
    27. A 3.6-mW, 1.4-V SRAM with Nonboosted, Vertical Bipolar Bitline Contact Memory Cell (共著)
      , ISSCC Dig. Tech. Papers , :352-353 1998(Feb.)
      Author:Hirotoshi Sato, Hideki Nagaoka, Hiroaki Honda, Yukio Maki, Tomohisa Wada, Yutaka Arita, Kazuhiro Tsutsumi, Makoto Taniguchi, Michihiro Yamada
    28. A Hierarchical Sensing Scheme (HSS) of High Density and Low-Voltage Operation SRAMs (共著)
      , Symposium on VLSI Circuit Dig. Tech. Papers , :79-80 1997(May)
      Author:Yoshiyuki Haraguchi, Tomohisa Wada, Yutaka Arita
    29. New Bit Line Architecture for Ultra High-Speed SRAMs – T-Shaped Bit Line and It
      , CICC Dig. Tech. Papers 1991(May)
      Author:Toru Shiomi, Tomohisa Wada, Shigeki Ohbayashi, Atsushi Ohba, Hiroki Honda, Yoshiyuki Ishigaki, Masahiro Hatanaka, Shigeo Nagao, Kenji Anami, Tadashi Sumi
    30. A New Soft-Error Phenomenon in ULSI SRAM
      , Symp. on VLSI Circuits Dig. Tech. Papers , :77-78 1990(Jun.)
      Author:Shuji Murakami, Tomohisa Wada, Masanao Eino, Motomu Ukita, Yasumasa Nishimura, Kenji Anami
    31. A 4-Mbit CMOS SRAM with 8-ns Serial-Access Time (共著)
      , Sym. on VLSI Circuits Dig. Tech. Papers , :51-52 1990(Jun.)
      Author:Hirotada Kuriyama, Toshihiko Hirose, Shuji Murakami, Tomohisa Wada, Koreaki Fujita, Yasumasa Nishimura, Kenji Anami
    32. 4 PMOS / 2 NMOS Vertically Stacked CMOS-SRAM with 0.6um Design rule (共著)
      , Sym. on VLSI Technology Dig. Tech. Papers , :39-40 1989(Jun.)
      Author:Y. Inoue, T. Ipposhi, Tomohisa Wada, Katsuki Ichinose, T. Nishimura, Yoichi Akasaka
    33. A 14ns 1Mb CMOS SRAM with Variable Bit-Organization Features (共著)
      , ISSCC Dig. Tech Papers , :30-31 1988(Feb.)
      Author:Tomohisa Wada, Kenji Anami, Yuji Kawai, Kojiro Yuzuriha, Yoshio Kohno, Takayuki Matsukawa, Shimpei Kayano
    34. A 34ns 1Mb CMOS SRAM using Triple Poly
      , ISSCC Dig. Tech. Papers , :262-263 1987(Feb.)
      Author:Tomohisa Wada, Toshihiko Hirose, Hirofumi Shinohara, Yuji Kawai, Kojiro Yuzuriha, Yoshio Kohno, Shimpei Kayano
    35. A 45ns 256K CMOS SRAM with Tri-Level Word Line (共著)
      , ISSCC Dig. Tech. Papers , :62-63 1985(Feb.)
      Author:Hirofumi Shinohara, Kenji Anami, Katsuki Ichinose, Tomohisa Wada, Yoshio Kohno, Yuji Kawai, Yoichi Akasaka, Shimpei Kayano
  • Others
    1. [招待講演]高速OFDMA通信システム開発における日本最南端での取り組み
      電子情報通信学会 , 電子情報通信学会技術報告 2009(Sep.)
      Author:和田知久
    2. 次世代PHSにおける周波数誤差とサンプリング周波数誤差の検知に関する検討
      電子情報通信学会 , 信学技報 , RCS2008(193):125-129 2009(Jan.)
      Author:石川清貴, 和田知久
    3. 次世代PHSにおけるタイミングコレクトチャネル(TCCH)を用いた遅延量判定アルゴリズムの検討
      電子情報通信学会 , 信学技報 , RCS2008(194):131-135 2009(Jan.)
      Author:池野谷克俊, 和田知久
    4. OFDM受信方式におけるRF周波数誤差検知を用いたICIキャンセラの提案
      電子情報通信学会 , 信学技報 , RCS2008(195):137-141 2009(Jan.)
      Author:野原健太, 和田知久
    5. 次世代PHSにおけるSC-FDMA方式のシミュレーション評価
      電子情報通信学会 , 信学技報 , RCS2008(196):143-147 2009(Jan.)
      Author:砂川祐一郎, 和田知久
    6. Max-Log-MAPアルゴリズムにおけるLog Likelihood Rationの信頼性に関する一検討
      電子情報通信学会 , 信学技報 , RCS2008(207):207-211 2009(Jan.)
      Author:宮野智法, 鄭志安, 和田知久
    7. Full Soft-decision Decoding on Concatenated Convolutional Inner Code and Reed-Solomon Outer Code
      電子情報通信学会 , 信学技報 , RCS2008(164):79-84 2008(Dec.)
      Author:Zhian ZHENG, Tomonori MIYANO, Tomohisa Wada
    8. 軟判定を用いた畳み込み・消失リードソロモン連接符号の繰り返し復号法による性能向上に関する検討
      電子情報通信学会 , 信学技報 , RCS2008(149):113-118 2008(Nov.)
      Author:平安名常寛, 平良文紀レンソー, 和田知久
    9. CP付きOFDM受信システムにおけるCP越え遅延波の周波数領域等化に関する検討
      電子情報通信学会 , 信学技報 , RCS2008(103):1-6 2008(Oct.)
      Author:任家林, 和田知久
    10. 畳み込み・リードソロモン連接符号の繰り返し復号法による性能向上に関する検討
      電子情報通信学会 , 信学技報 , RCS2008(110):43-47 2008(Oct.)
      Author:平良文紀レンソー, 平安名常寛, 和田知久
    11. The Simulation Results of GS List-Decoding of RS Codes
      電子情報通信学会 , 信学技報 , SAT2007(25):35-39 2007(Nov.)
      Author:Zhi An Zhen, Dang Hai Pham, Tomohisa Wada
    12. A Robust Frame Synchronization of Mobile WiMax 802.16e
      電子情報通信学会 , 信学技報 , RCS2007(181):7-12 2007(Jan.)
      Author:Dang Hai Pham, Tomohisa Wada
    13. CHANNEL ESTIMATION FOR MOBILE WIRELESS COMMUNICATION SYSTEM USING DISCRETE WAVELET TRANSFORM
      電子情報通信学会 , 信学技報 , RCS2007(181):37-41 2007(Jan.)
      Author:Phuong Thi Thu PHAM, Tomohisa Wada
    14. A novel Fast Eigenvalue Decomposition based on Cyclic Jacobi rotation and its application in eigen-beamforming
      電子情報通信学会 , 信学技報 , SR2006(39) 2006(Jul.)
      Author:Dang Hai Pham, Tomohisa Wada
    15. IEEE802.16e対応LDPCデコーダの高性能化に関する検討
      電子情報通信学会 , 信学技報 , ICD2005(234):55-60 2006(Mar.)
      Author:我喜屋良太, 和田知久
    16. OFDM無線技術の大学関連ベンチャー企業マグナデザインネットと最近の成果
      電子情報通信学会 , 信学技報 , SR2005(57):71-75 2005(Nov.)
      Author:和田知久
    17. 2ビーム方式による4アンテナアダプティブアレー地上デジタル放送受信システムの性能向上に関する検討
      電子情報通信学会 , 信学技報 , SR2005(64):119-126 2005(Nov.)
      Author:高靖, 和田知久
    18. The Development of Terrestrial Digital TV Broadcasting dedicated Software-based Adaptive Array Anntenna System
      電子情報通信学会 , 信学技報 2005(Jul.)
      Author:Dang Hai Pham, Hirokazu Asato, Takanobu Tabata, Satoshi Hori, Shuji Murakami, Tomohisa Wada
    19. 次世代ワイヤレスLANシステムオンチップのMAC層の実装に関する検討
      IEICE , 信学技報 , ICD2004(227):41-16 2005(May)
      Author:福嶺秀策, 安里博一, 神山一弘, 和田知久
    20. DSPベースソフトウエアデファインドラジオ(SDR)システム向け処理アルゴリズムの検討-OFDM受信機におけるCoarseRF周波数誤差検知-
      電子情報通信学会 , 信学技報 , ICD2004(228):47-52 2005(Mar.)
      Author:国吉卓, PHAM DANG HAI, 我喜屋良太, 和田知久, 村上修二, 水谷弘幸
    21. 繰り返し型ノイズ低減フィルターを用いた高精度チャネル推定・高速移動体向けOFDM受信LSI
      映像情報メディア学会 , 社団法人映像情報メディア学会技術報告 , 29(21):17-19 2005(Mar.)
      Author:ダン ハイ パム, 村上修二, 神山一弘, 水谷弘幸, 當眞聡, 金田喜共, 玉置祥, 和田知久
    22. 地上デジタルOFDM受信フロントエンド部のソフトウエアラジオ方式による実装に関する検討
      電子情報通信学会 , 信学技法 , ICD-148:25-30 2004(Mar.)
      Author:鹿島大吾, 和田知久, 村上修二
    23. オンチップマルチプロセッサシステムによるFFT並列処理に関する基礎検討
      電子情報通信学会 , 信学技法 , 125:19-24 2003(Oct.)
      Author:玉置祥, 和田知久, 神山一弘
    24. 地上波デジタルOFDM受信用時間領域ダイバーシティ回路のシミュレーション評価
      電子情報通信学会 , 信学技法 , ICD-48:55-60 2003(Jul.)
      Author:Pham Hai Dang, 和田知久, 村上修二, 水谷弘幸
    25. アレイアンテナを用いた周波数誤差除去方式による高速移動体向けOFDM受信器の性能向上に関する一検討
      電子情報通信学会 , 信学技法 , ICD-195:65-70 2003(Jan.)
      Author:山崎和美, 金田喜共, 前原崇章, 和田知久
    26. 3バンクRAMを用いた高速フーリエ変換回路の実装
      電子情報通信学会 , 信学技法 , 167:19-23 2002(Dec.)
      Author:前原崇章, 和田知久, 金田喜共, 村上修二, 水谷弘幸
    27. 伝送ひずみを考慮した軟判定ビタビ復号器の設計
      電子情報通信学会 , 信学技法 , ICD-103:53-58 2002(Sep.)
      Author:金田喜共, 和田知久, 村上修二, 森本邦夫, 堀充
    28. デジタル音声画像伝送処理用、超高速低消費電力VLSIアーキテクチャに関する研究
      電気通信普及財団 , 研究調査報告書 , 16:531-539 2001(Mar.)
      Author:和田知久, 金田喜共, 前原崇章, 山崎和美

Research Grants

  • Joint Research
    1. 2008 – 2008 , Joint research on high-performance technology for mobile reception of digital terrestrial broadcasting
    2. 2002 – 2002 , Development of LSI for high-capacity wireless communications
    3. 2002 – 2002 , Diversity reception of OFDM receiver performance
  • Cooperative research with industry
    1. 2009 – 2009 , Studies on the software implementation of digital broadcasting demodulation
    2. 2007 – 2007 , Research and development of algorithms for maximum performance and two or four antennas
    3. 2006 – 2006 , ETSS Business Communication Systems Compliance Training
    4. 2005 – 2005 , 2 antenna diversity algorithm development system

Contact

Address: 1 Senbaru,Nishihara,Okinawa
TEL: +81-98-895-8713FAX: +81-98-895-8713
Mail Address: wada@ie.u-ryukyu.ac.jp
Web Site: http://www.ie.u-ryukyu.ac.jp/~wada/