Keisuke Kojima

Publication Activity (10 Years)

Years Active: 2014-2021
Publications (10 Years): 39

Top Topics

Top Venues

IEEE Trans. Commun.

Publications

Pavel Skvortcov, David S. Millar, Ian D. Phillips, Wladek Forysiak, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
Experimental Analysis of Mismatched Soft-Demapping for Probabilistic Shaping in Short-Reach Nonlinear Transmission. ECOC (2021)
Toshiaki Koike-Akino, Ye Wang, Keisuke Kojima, Kieran Parsons, Tsuyoshi Yoshida
Zero-Multiplier Sparse DNN Equalization for Fiber-Optic QAM Systems with Probabilistic Amplitude Shaping. ECOC (2021)
Pavel Skvortcov, Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping. ECOC (2021)
Keisuke Kojima, Mohammad H. Tahersima, Toshiaki Koike-Akino, Devesh K. Jha, Yingheng Tang, Ye Wang, Kieran Parsons, Fengqiao Sang, Jonathan Klamkin
Deep Neural Networks for Designing Integrated Photonics. OFC (2020)
Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
Parallel-Amplitude Architecture and Subset Ranking for Fast Distribution Matching. IEEE Trans. Commun. 68 (4) (2020)
Yingheng Tang, Keisuke Kojima, Toshiaki Koike-Akino, Ye Wang, Pengxiang Wu, Mohammad H. Tahersima, Devesh K. Jha, Kieran Parsons, Minghao Qi
Generative Deep Learning Model for a Multi-Level Nano-Optic Broadband Power Splitter. OFC (2020)
Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons, Helmut Griesser
Huffman-coded Sphere Shaping and Distribution Matching Algorithms via Lookup Tables. CoRR (2020)
Toshiaki Koike-Akino, Toshiki Matsumine, Ye Wang, David S. Millar, Keisuke Kojima, Kieran Parsons
Variational Quantum Demodulation for Coherent Optical Multi-Dimensional QAM. OFC (2020)
Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons, Helmut Griesser
Analysis of Nonlinear Fiber Interactions for Finite-Length Constant-Composition Sequences. CoRR (2020)
Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
Stochastic EXIT Design for Low-Latency Short-Block LDPC Codes. OFC (2020)
Veeru Talreja, Toshiaki Koike-Akino, Ye Wang, David S. Millar, Keisuke Kojima, Kieran Parsons
End-to-End Deep Learning for Phase Noise-Robust Multi-Dimensional Geometric Shaping. ECOC (2020)
Toshiaki Koike-Akino, Ye Wang, Semih Cayci, David S. Millar, Keisuke Kojima, Kieran Parsons
Hardware-Efficient Quantized Polar Decoding with Optimized Lookup Table. OECC/PSC (2019)
Mohammad H. Tahersima, Keisuke Kojima, Toshiaki Koike-Akino, Devesh K. Jha, Bingnan Wang, Chungwei Lin, Kieran Parsons
Deep Neural Network Inverse Modeling for Integrated Photonics. OFC (2019)
Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
Partition-Based Probabilistic Shaping for Fiber-Optic Communication Systems. OFC (2019)
Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
Multiset-Partition Distribution Matching. IEEE Trans. Commun. 67 (3) (2019)
Toshiki Matsumine, Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
Polar-Coded Modulation for Joint Channel Coding and Probabilistic Shaping. OFC (2019)
Toshiaki Koike-Akino, Ye Wang, David S. Millar, Keisuke Kojima, Kieran Parsons
Neural Turbo Equalization: Deep Learning for Fiber-Optic Nonlinearity Compensation. CoRR (2019)
Toshiaki Koike-Akino, Congzhe Cao, Ye Wang, Keisuke Kojima, David S. Millar, Kieran Parsons
Irregular Polar Turbo Product Coding for High-Throughput Optical Interface. OFC (2018)
Min Teng, Keisuke Kojima, Toshiaki Koike-Akino, Bingnan Wang, Chungwei Lin, Kieran Parsons
Broadband SOI Mode Order Converter Based on Topology Optimization. OFC (2018)
Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
Rate-Adaptive LDPC Convolutional Coding with Joint Layered Scheduling and Shortening Design. OFC (2018)
Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
Multi-Dimensional Pulse-Shaping FIR Filter for Nonlinear Interference Alignment. OFC (2018)
Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
Lattice Precoding for Multi-Span Constellation Shaping. ECOC (2018)
Keisuke Kojima, Tsuyoshi Yoshida, Kieran Parsons, Toshiaki Koike-Akino, David S. Millar, Keisuke Matsuda
Comparison of Nonlinearity Tolerance of Modulation Formats for Subcarrier Modulation. OFC (2018)
Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
Schalkwijk-Kailath Feedback Error Correction for Optical Data Center Interconnects. ECOC (2018)
Toshiaki Koike-Akino, Ye Wang, Keisuke Kojima, David S. Millar, Kieran Parsons
EXIT Convergence Analysis of BICM-ID Based on High-Dimensional Modulation and Polar-TPC. ECOC (2018)
David S. Millar, Tobias Fehenberger, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
Coded Modulation for Next-Generation Optical Communications. OFC (2018)
Toshiaki Koike-Akino, Milutin Pajovic, David S. Millar, Keisuke Kojima, Kieran Parsons
Superchannel CPE with Wyner-Ziv Cooperation for Band-Limited Interconnects in Multi-DSP Receiver. ECOC (2018)
Toshiaki Koike-Akino, Kieran Parsons, David S. Millar, Keisuke Kojima
Lattice precoding for IM/DD POF interconnects. OFC (2017)
Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
Reach Extension with Lattice Precoding for Optical PAM Transmission in Data Center Networks. ECOC (2017)
Yusuke Sekii, Ryohei Orihara, Keisuke Kojima, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga
Fast Many-to-One Voice Conversion using Autoencoders. ICAART (2) (2017)
Toshiaki Koike-Akino, Ye Wang, Stark C. Draper, Kenya Sugihara, Wataru Matsumoto, David S. Millar, Kieran Parsons, Keisuke Kojima
Bit-interleaved polar-coded modulation for low-latency short-block transmission. OFC (2017)
Toshiaki Koike-Akino, Tsuyoshi Yoshida, Kieran Parsons, David S. Millar, Keisuke Kojima, Milutin Pajovic
Fully-parallel soft-decision cycle slip recovery. OFC (2017)
Keisuke Kojima, Tsuyoshi Yoshida, Kieran Parsons, Toshiaki Koike-Akino, David S. Millar, Keisuke Matsuda
Nonlinearity-tolerant time domain hybrid modulation for 4-8 bits/symbol based on 2A8PSK. OFC (2017)
David S. Millar, Lídia Galdino, Robert Maher, Milutin Pajovic, Toshiaki Koike-Akino, Gabriel Saavedra, Daniel J. Elson, Domaniç Lavery, Kai Shi, M. Sezer Erkilinc, Eric Sillekens, Robert I. Killey, Benn C. Thomsen, Keisuke Kojima, Kieran Parsons, Polina Bayvel
A simplified dual-carrier DP-64QAM 1 Tb/s transceiver. OFC (2017)
Toshiaki Koike-Akino, Congzhe Cao, Ye Wang, Stark C. Draper, David S. Millar, Kieran Parsons, Keisuke Kojima, Milutin Pajovic, Lídia Galdino, Daniel J. Elson, Domaniç Lavery, Polina Bayvel
Irregular Polar Coding for Multi-Level Modulation in Complexity-Constrained Lightwave Systems. ECOC (2017)
Valeria Arlunno, David S. Millar, Toshiaki Koike-Akino, Milutin Pajovic, Keisuke Kojima, Kieran Parsons
Reduced-complexity blind chromatic dispersion estimation for digital coherent systems. OFC (2016)
Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Tsuyoshi Yoshida, Takashi Sugihara
Pareto-efficient set of modulation and coding based on RGMI in nonlinear fiber transmissions. OFC (2016)
Keisuke Kojima, Toshiaki Koike-Akino, David S. Millar, Milutin Pajovic, Kieran Parsons, Tsuyoshi Yoshida
Investigation of low code rate DP-8PSK as an alternative to DP-QPSK. OFC (2016)
Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
GMI-maximizing constellation design with Grassmann projection for parametric shaping. OFC (2016)
Keisuke Kojima, Toshiaki Koike-Akino, David S. Millar, Kieran Parsons
Design of constant modulus modulation considering envelopes. OFC (2015)
David S. Millar, Robert Maher, Domaniç Lavery, Toshiaki Koike-Akino, Milutin Pajovic, Alex Alvarado, Milen Paskov, Keisuke Kojima, Kieran Parsons, Benn C. Thomsen, Seb J. Savory, Polina Bayvel
Detection of a 1 Tb/s superchannel with a single coherent receiver. ECOC (2015)
Tian Xia, Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons, Yoshikuni Miyata, Kenya Sugihara, Wataru Matsumoto
Dynamic window decoding for LDPC convolutional codes in low-latency optical communications. OFC (2015)
Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
Coded modulation design for finite-iteration decoding and high-dimensional modulation. OFC (2015)
Milutin Pajovic, David S. Millar, Toshiaki Koike-Akino, Robert Maher, Domaniç Lavery, Alex Alvarado, Milen Paskov, Keisuke Kojima, Kieran Parsons, Benn C. Thomsen, Seb J. Savory, Polina Bayvel
Experimental demonstration of multi-pilot aided carrier phase estimation for DP-64QAM and DP-256QAM. ECOC (2015)
Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
Laser frequency drift compensation with Han-Kobayashi coding in superchannel nonlinear optical communications. ECOC (2015)
Keisuke Kojima, Yuichiro Horiguchi, Toshiaki Koike-Akino, Yasuhisa Shimakura, Kentaro Enoki, Eiji Yagyu
Separation of semiconductor laser intrinsic linewidth and 1/f noise using multiple fiber lengths with the delayed self-heterodyne method. OFC (2015)
David S. Millar, Robert Maher, Domaniç Lavery, Toshiaki Koike-Akino, Alex Alvarado, Milen Paskov, Keisuke Kojima, Kieran Parsons, Benn C. Thomsen, Seb J. Savory, Polina Bayvel
Transceiver-limited high spectral efficiency Nyquist-WDM systems. OFC (2015)
Keisuke Kojima, Toshiaki Koike-Akino, David S. Millar, Kieran Parsons
BICM capacity analysis of 8QAM-alternative modulation formats in nonlinear fiber transmission. TIWDC (2015)
Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Yoshikuni Miyata, Wataru Matsumoto, Takashi Sugihara, Takashi Mizuochi
Cycle slip-mitigating turbo demodulation in LDPC-coded coherent optical communications. OFC (2014)
David S. Millar, Toshiaki Koike-Akino, Sercan Ö. Arik, Keisuke Kojima, Kieran Parsons
Comparison of quaternary block-coding and sphere-cutting for high-dimensional modulation. OFC (2014)
Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Soichiro Kametani, Takashi Sugihara, Tsuyoshi Yoshida, Kazuyuki Ishida, Yoshikuni Miyata, Wataru Matsumoto, Takashi Mizuochi
Interference management with Han-Kobayashi coding: Dual-carrier coherent optical communications. ECOC (2014)
Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons, Tsuyoshi Yoshida, Kazuyuki Ishida, Yoshikuni Miyata, Wataru Matsumoto, Takashi Mizuochi
Turbo demodulation for LDPC-coded high-order QAM in presence of transmitter angular skew. ECOC (2014)
Keisuke Kojima, David S. Millar, Toshiaki Koike-Akino, Kieran Parsons
Constant modulus 4D optimized constellation alternative for DP-8QAM. ECOC (2014)
Sercan Ö. Arik, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
High-dimensional modulation for mode-division multiplexing. OFC (2014)
Keisuke Kojima, David S. Millar, Toshiaki Koike-Akino, Kieran Parsons, Soichiro Kametani, Takashi Sugihara
Maximizing transmission capacity of superchannels using rate-adaptive FEC. ECOC (2014)
David S. Millar, Toshiaki Koike-Akino, Robert Maher, Domaniç Lavery, Milen Paskov, Keisuke Kojima, Kieran Parsons, Benn C. Thomsen, Seb J. Savory, Polina Bayvel
Experimental demonstration of 24-dimensional extended Golay coded modulation with LDPC. OFC (2014)