Keio University

Published papers

Ohtsuki, Tomoaki

421-440 items (total 542)

A New Load Balancing And Data Collection Algorithm For Energy Saving In Wireless Sensor Networks

Author
X. Guan, L. Guan, X.G. Wang, and T. Ohtsuki
Publication Title
Magazine name Telecommunication Systems Publisher Springer Netherlands (Publication Date)2010/02)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

An Improved User Selection Algorithm in Multiuser MIMO Broadcast with Channel Prediction

Author
Z. Min and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E92-B(Issue 8) Start Page 2667-2674 (Publication Date)2009/08)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Indoor Event Detection with Signal Subspace Spanned by Eigenvector for Home or Office Security

Author
S. Ikeda, H. Tsuji, and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E92-B(Issue 7) Start Page 2406-2412 (Publication Date)2009/07)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Random Beamforming Using Iterative Power Allocation with Small Feedback Information and Low Latency

Author
Y. Tsuchiya and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E92-B(Issue 5) Start Page 1908-1911 (Publication Date)2009/05)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Turbo Equalized Double Window Cancellation and Combining Robust to Large Delay Spread Channel

Author
J.H. Lee, T. Ohtsuki, and M. Nakagawa
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E92-B(Issue 2) Start Page 517-526 (Publication Date)2009/02)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Convergence Acceleration of Iterative Signal Detection for MIMO System with Belief Propagation

Author
S. Gounai and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E91-B(Issue 8) Start Page 2640-2648 (Publication Date)2008/08)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Mapping for Iterative MMSE-SIC with Belief Propagation

Author
S. Gounai, T. Ohtsuki, and T. Kaneko
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E91-B(Issue 7) Start Page 2187-2197 (Publication Date)2008/07)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

An indoor position estimation method by maximum likelihood algorithm using received signal strength

Author
I. Yamada, T. Ohtsuki, T. Hisanaga, and Li Zheng
Publication Title
Magazine name SICE Journal of Control, Measurement, and System Integration Publisher SICE Volume 1(Issue 3) Start Page 251-256 (Publication Date)2008/03)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

MIMO Systems in the Presence of Feedback Delay

Author
K. Kobayashi, T. Ohtsuki, and T. Kaneko
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E91-B(Issue 3) Start Page 829-836 (Publication Date)2008/03)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

MIMO System with Relative Phase Difference Time-Shift Modulation for Rician Fading Environment

Author
K. Kobayashi, T. Someya, T. Ohtsuki, S. PW. Sigit, and T. Kashima
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E91-B(Issue 2) Start Page 459-465 (Publication Date)2008/02)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Scheduling Algorithm with Power Allocation for Random Unitary Beamforming

Author
Y. Tsuchiya, T. Ohtsuki, and T. Kaneko
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E91-B(Issue 1) Start Page 232-238 (Publication Date)2008/01)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Double window cancellation and combining for OFDM in time-invariant large delay spread channel

Author
J.H. Lee, Y. Kishiyama, T. Ohtsuki, and M. Nakagawa
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E90-A(Issue 10) Start Page 2066-2078 (Publication Date)2007/10)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Performance Evaluation of SAGE Algorithm for Channel Estimation and Data Detection Using Superimposed Training in MIMO System

Author
F. Tsuzuki and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E90-B(Issue 6) Start Page 1460-1466 (Publication Date)2007/06)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Lowering Error Floors of Irregular LDPC Code on Fast Fading Environment with Perfect and Imperfect CSIs

Author
S. Gounai, T. Ohtsuki, and T. Kaneko
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E90-B(Issue 3) Start Page 569-577 (Publication Date)2007/03)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

LDPC codes in communications and broadcasting

Author
OHTSUKI TOMOAKI
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E90-B(Issue 3) Start Page 440-453 (Publication Date)2007/03)
Authorship Category
Single Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Companding System Based on Time Clustering for Reducing Peak Power of OFDM Symbol in Wireless Communications

Author
O. Takyu, T. Ohtsuki, and M. Nakagawa
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E89-A(Issue 7) Start Page 1884-1891 (Publication Date)2006/07)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Chip-level Detection in Optical Frequency Hopping Code Division Multiple Access

Author
S. Ichiki and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E89-A(Issue 7) Start Page 2056-2062 (Publication Date)2006/07)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Reliability-Based Hybrid ARQ (RB-HARQ) Schemes using Low-Density Parity-Check (LDPC) Codes

Author
Y. Inaba, T. Saito, and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E89-B(Issue 4) Start Page 1170-1177 (Publication Date)2006/04)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

Bootstrapped Modified Weighted Bit Flipping Decoding of Low Density Parity Check Codes

Author
Y. Inaba and T. Ohtsuki
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E89-A(Issue 4) Start Page 1145-1149 (Publication Date)2006/04)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With

A Sign Selection Method of Orthogonal Variable Spreading Factor Code for Peak Power Reduction in Multi-Rate OFCDM Systems

Author
O. Takyu, T. Ohtsuki, and M. Nakagawa
Publication Title
Magazine name Trans. of IEICE Publisher IEICE Volume E89-B(Issue 4) Start Page 1333-1345 (Publication Date)2006/04)
Authorship Category
Joint Work
Publication Category
Research paper (conference, symposium, etc.)
Peer-review Status
With