Papers - OKAMOTO Eiji
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An Improved Channel Estimation Scheme for Sparse and Scattered Pilot OFDM System Reviewed
H. Hayashi, E. Okamoto, and Y. Iwanami
Proc. IEEE VTS Asia Pacific Wireless Communications Symposium (APWCS) CD - ROM 5 pages 2008.08
Language：English Publishing type：Research paper (international conference proceedings)
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拡張型Walsh符号によるMC-CDMAの伝送特性改善に関する検討 Reviewed
市川真己,王巍,岡本英二,岩波保則
電子情報通信学会論文誌Ｂ J91-B ( 4 ) 510 - 516 2008.04
Language：Japanese Publishing type：Research paper (scientific journal)
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Performance Improvement of Turbo Equalization by Concatenating SC/MMSE Equalizer Reviewed
Y. Kadoike, E. Okamoto, and Y. Iwanami
Proc. Int'l. Sym. Wireless Personal Multimedia Commun. (WPMC) 353 - 357 2007.12
Language：English Publishing type：Research paper (international conference proceedings)
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Application of turbo equalization for multimode block-coded modulation Reviewed
M. Sugawara, E. Okamoto, and Y. Iwanami
Proc. Int'l. Sym. Wireless Personal Multimedia Commun. (WPMC) 550 - 554 2007.12
Language：English Publishing type：Research paper (international conference proceedings)
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A Time-Selective Fading Estimation Scheme for OFDM Reviewed
T. Kawaguchi, E. Okamoto, and Y. Iwanami
Proc. Int'l. Sym. Wireless Personal Multimedia Commun. (WPMC) 555 - 559 2007.12
Language：English Publishing type：Research paper (international conference proceedings)
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Performance improvement of Haar-based wavelet packet modulation in multipath fading environment Reviewed
S. Maki, E. Okamoto, and Y. Iwanami
Proc. IEEE Int'l Sym. on Commun. and Inf. Tech. (ISCIT) 1021 - 1026 2007.10
Language：English Publishing type：Research paper (international conference proceedings)
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LDPC符号を用いたターボ等化の特性改善に関する検討 Reviewed
松岡克宏,岡本英二,岩波保則
電子情報通信学会論文誌Ｂ J90-B ( 4 ) 432 - 436 2007.04
Language：Japanese Publishing type：Research paper (scientific journal)
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An Improvement of Closed-Loop Transmit Diversity with Three Transmit Antennas Reviewed
M. Sugawara, E. Okamoto, and Y. Iwanami
Proc. Int'l Sym. Information Theory and Its Applications (ISITA) 678 - 682 2006.10
Language：English Publishing type：Research paper (international conference proceedings)
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A new Walsh-based spreading code for MC-CDMA adaptive multiple transmissions Reviewed
M. Ichikawa, E. Okamoto, and Y. Iwanami
Proc. Int'l. Sym. Wireless Personal Multimedia Commun. (WPMC) 726 - 730 2006.09
Language：English Publishing type：Research paper (international conference proceedings)
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An Equalization Scheme of OFDM using 2D-FFT Reviewed
T. Kawaguchi, E. Okamoto, and Y. Iwanami
Proc. Int'l. Sym. Wireless Personal Multimedia Commun. (WPMC) 706 - 710 2006.09
Language：English Publishing type：Research paper (international conference proceedings)
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A trellis-coded chaotic modulation scheme Reviewed
E. Okamoto and Y. Iwanami
Proc. IEEE Int'l Conf. Commun. (ICC) ( 11 ) 5010 - 5015 2006.06
Authorship：Lead author Language：English Publishing type：Research paper (international conference proceedings)
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A wavelet packet modulation method for satellite communications Reviewed
H. Sakakibara, E. Okamoto, and Y. Iwanami
Proc. IEEE region ten conf. (Tencon) 446 - 451 2005.11
Language：English Publishing type：Research paper (international conference proceedings)
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A higher rate turbo equalization with multilevel block-coded modulation Reviewed
K. Matsuoka, E. Okamoto, and Y. Iwanami
Proc. IEEE region ten conf. (Tencon) 1711 - 1716 2005.11
Language：English Publishing type：Research paper (international conference proceedings)
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Application of Wavelet Packet Modulation to Mobile Communication Reviewed
Eiji OKAMOTO, Yasunori IWANAMI, Tetsushi IKEGAMI
IEICE Transactions on Fundamentals 87 ( 10 ) 2684 - 2691 2004.10
Language：English Publishing type：Research paper (scientific journal)
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Precise Multi-Path Fading Compensation Method using FFT Reviewed
Y. Sakai, E. Okamoto, and Y. Iwanami
Proc. Int'l Sym. Information Theory and Its Applications (ISITA) 718 - 721 2004.10
Language：English Publishing type：Research paper (international conference proceedings)
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A block-coded modulation method for one-way multi-mode data transmission Reviewed
Eiji OKAMOTO, Hiroyo OGAWA
IEEE Transactions on Communications 50 ( 12 ) 2124 - 2135 2002.12
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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A pilot-symbol-assisted fading and frequency-offset compensation method using FFT Reviewed
Eiji OKAMOTO, Huan-Bang LI, Tetsushi IKEGAMI
IEICE Transactions on Fundamentals E85-A ( 7 ) 1656 - 1664 2002.07
Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)
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直交ウェーブレット変調を用いたパルス状雑音下での伝送方法に関する一検討 Reviewed
岡本 英二，李 還幇，田中 正人，若菜 弘充，小川 博世
電子情報通信学会論文誌B J84-B ( 7 ) 1163 - 1175 2001.07
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
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COMETS搭載移動体衛星通信用機器（MCE）の軌道上性能 Reviewed
斉藤春夫，三浦周，小原徳昭，岡本英二，山本伸一，森川栄久，小園晋一，若菜弘充
電子情報通信学会論文誌B J84-B ( 4 ) 731 - 740 2001.04
Language：Japanese Publishing type：Research paper (scientific journal)
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フェージング下における16QAMを用いたブロック符号化変調方式の一検討 Reviewed
岡本 英二，李 還幇，田中 正人，若菜 弘充
電子情報通信学会論文誌B J83-B ( 3 ) 276 - 288 2000.03
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal)
