Keisuke Kojima

58 papers B 1Journal 5Unranked 52

Year	Rank	Type	Title / Venue / Authors
2025	—	`conf`	Inverse Design of Silicon Nitride Waveguide Bend. ECOC Keisuke Kojima, Cooper Hurley, Kevin McComber
2021	—	`conf`	Dual Coding Concatenation for Burst-Error Correction in Probabilistic Amplitude Shaping. ECOC Pavel Skvortcov, Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
2021	—	`conf`	Experimental Analysis of Mismatched Soft-Demapping for Probabilistic Shaping in Short-Reach Nonlinear Transmission. ECOC Pavel Skvortcov, David S. Millar, Ian D. Phillips, Wladek Forysiak, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
2021	—	`conf`	Zero-Multiplier Sparse DNN Equalization for Fiber-Optic QAM Systems with Probabilistic Amplitude Shaping. ECOC Toshiaki Koike-Akino, Ye Wang, Keisuke Kojima, Kieran Parsons, Tsuyoshi Yoshida
2020	J	`jnl`	Analysis of Nonlinear Fiber Interactions for Finite-Length Constant-Composition Sequences. CoRR Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons, Helmut Griesser
2020	—	`conf`	Deep Neural Networks for Designing Integrated Photonics. OFC Keisuke Kojima, Mohammad H. Tahersima, Toshiaki Koike-Akino, Devesh K. Jha, Yingheng Tang, Ye Wang, Kieran Parsons, Fengqiao Sang, Jonathan Klamkin
2020	—	`conf`	End-to-End Deep Learning for Phase Noise-Robust Multi-Dimensional Geometric Shaping. ECOC Veeru Talreja, Toshiaki Koike-Akino, Ye Wang, David S. Millar, Keisuke Kojima, Kieran Parsons
2020	—	`conf`	Generative Deep Learning Model for a Multi-Level Nano-Optic Broadband Power Splitter. OFC Yingheng Tang, Keisuke Kojima, Toshiaki Koike-Akino, Ye Wang, Pengxiang Wu, Mohammad H. Tahersima, Devesh K. Jha, Kieran Parsons, Minghao Qi
2020	J	`jnl`	Huffman-coded Sphere Shaping and Distribution Matching Algorithms via Lookup Tables. CoRR Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons, Helmut Griesser
2020	J	`jnl`	Parallel-Amplitude Architecture and Subset Ranking for Fast Distribution Matching. IEEE Trans. Commun. Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
2020	—	`conf`	Stochastic EXIT Design for Low-Latency Short-Block LDPC Codes. OFC Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
2020	—	`conf`	Variational Quantum Demodulation for Coherent Optical Multi-Dimensional QAM. OFC Toshiaki Koike-Akino, Toshiki Matsumine, Ye Wang, David S. Millar, Keisuke Kojima, Kieran Parsons
2019	—	`conf`	Deep Neural Network Inverse Modeling for Integrated Photonics. OFC Mohammad H. Tahersima, Keisuke Kojima, Toshiaki Koike-Akino, Devesh K. Jha, Bingnan Wang, Chungwei Lin, Kieran Parsons
2019	—	`conf`	Hardware-Efficient Quantized Polar Decoding with Optimized Lookup Table. OECC/PSC Toshiaki Koike-Akino, Ye Wang, Semih Cayci, David S. Millar, Keisuke Kojima, Kieran Parsons
2019	J	`jnl`	Multiset-Partition Distribution Matching. IEEE Trans. Commun. Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
2019	J	`jnl`	Neural Turbo Equalization: Deep Learning for Fiber-Optic Nonlinearity Compensation. CoRR Toshiaki Koike-Akino, Ye Wang, David S. Millar, Keisuke Kojima, Kieran Parsons
2019	—	`conf`	Partition-Based Probabilistic Shaping for Fiber-Optic Communication Systems. OFC Tobias Fehenberger, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
2019	—	`conf`	Polar-Coded Modulation for Joint Channel Coding and Probabilistic Shaping. OFC Toshiki Matsumine, Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
2018	—	`conf`	Broadband SOI Mode Order Converter Based on Topology Optimization. OFC Min Teng, Keisuke Kojima, Toshiaki Koike-Akino, Bingnan Wang, Chungwei Lin, Kieran Parsons
2018	—	`conf`	Coded Modulation for Next-Generation Optical Communications. OFC David S. Millar, Tobias Fehenberger, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
2018	—	`conf`	Comparison of Nonlinearity Tolerance of Modulation Formats for Subcarrier Modulation. OFC Keisuke Kojima, Tsuyoshi Yoshida, Kieran Parsons, Toshiaki Koike-Akino, David S. Millar, Keisuke Matsuda
2018	—	`conf`	EXIT Convergence Analysis of BICM-ID Based on High-Dimensional Modulation and Polar-TPC. ECOC Toshiaki Koike-Akino, Ye Wang, Keisuke Kojima, David S. Millar, Kieran Parsons
2018	—	`conf`	Irregular Polar Turbo Product Coding for High-Throughput Optical Interface. OFC Toshiaki Koike-Akino, Congzhe Cao, Ye Wang, Keisuke Kojima, David S. Millar, Kieran Parsons
2018	—	`conf`	Lattice Precoding for Multi-Span Constellation Shaping. ECOC Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
2018	—	`conf`	Multi-Dimensional Pulse-Shaping FIR Filter for Nonlinear Interference Alignment. OFC Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
2018	—	`conf`	Rate-Adaptive LDPC Convolutional Coding with Joint Layered Scheduling and Shortening Design. OFC Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
2018	—	`conf`	Schalkwijk-Kailath Feedback Error Correction for Optical Data Center Interconnects. ECOC Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
2018	—	`conf`	Superchannel CPE with Wyner-Ziv Cooperation for Band-Limited Interconnects in Multi-DSP Receiver. ECOC Toshiaki Koike-Akino, Milutin Pajovic, David S. Millar, Keisuke Kojima, Kieran Parsons
2017	—	`conf`	A simplified dual-carrier DP-64QAM 1 Tb/s transceiver. OFC 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
2017	—	`conf`	Bit-interleaved polar-coded modulation for low-latency short-block transmission. OFC Toshiaki Koike-Akino, Ye Wang, Stark C. Draper, Kenya Sugihara, Wataru Matsumoto, David S. Millar, Kieran Parsons, Keisuke Kojima
2017	—	`conf`	Fast Many-to-One Voice Conversion using Autoencoders. ICAART (2) Yusuke Sekii, Ryohei Orihara, Keisuke Kojima, Yuichi Sei, Yasuyuki Tahara, Akihiko Ohsuga
2017	—	`conf`	Fully-parallel soft-decision cycle slip recovery. OFC Toshiaki Koike-Akino, Tsuyoshi Yoshida, Kieran Parsons, David S. Millar, Keisuke Kojima, Milutin Pajovic
2017	—	`conf`	Irregular Polar Coding for Multi-Level Modulation in Complexity-Constrained Lightwave Systems. ECOC 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
2017	—	`conf`	Lattice precoding for IM/DD POF interconnects. OFC Toshiaki Koike-Akino, Kieran Parsons, David S. Millar, Keisuke Kojima
2017	—	`conf`	Nonlinearity-tolerant time domain hybrid modulation for 4-8 bits/symbol based on 2A8PSK. OFC Keisuke Kojima, Tsuyoshi Yoshida, Kieran Parsons, Toshiaki Koike-Akino, David S. Millar, Keisuke Matsuda
2017	—	`conf`	Reach Extension with Lattice Precoding for Optical PAM Transmission in Data Center Networks. ECOC Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
2016	—	`conf`	GMI-maximizing constellation design with Grassmann projection for parametric shaping. OFC Toshiaki Koike-Akino, David S. Millar, Kieran Parsons, Keisuke Kojima
2016	—	`conf`	Investigation of low code rate DP-8PSK as an alternative to DP-QPSK. OFC Keisuke Kojima, Toshiaki Koike-Akino, David S. Millar, Milutin Pajovic, Kieran Parsons, Tsuyoshi Yoshida
2016	—	`conf`	Pareto-efficient set of modulation and coding based on RGMI in nonlinear fiber transmissions. OFC Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Tsuyoshi Yoshida, Takashi Sugihara
2016	—	`conf`	Reduced-complexity blind chromatic dispersion estimation for digital coherent systems. OFC Valeria Arlunno, David S. Millar, Toshiaki Koike-Akino, Milutin Pajovic, Keisuke Kojima, Kieran Parsons
2015	—	`conf`	BICM capacity analysis of 8QAM-alternative modulation formats in nonlinear fiber transmission. TIWDC Keisuke Kojima, Toshiaki Koike-Akino, David S. Millar, Kieran Parsons
2015	—	`conf`	Coded modulation design for finite-iteration decoding and high-dimensional modulation. OFC Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
2015	—	`conf`	Design of constant modulus modulation considering envelopes. OFC Keisuke Kojima, Toshiaki Koike-Akino, David S. Millar, Kieran Parsons
2015	—	`conf`	Detection of a 1 Tb/s superchannel with a single coherent receiver. ECOC 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
2015	—	`conf`	Dynamic window decoding for LDPC convolutional codes in low-latency optical communications. OFC Tian Xia, Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons, Yoshikuni Miyata, Kenya Sugihara, Wataru Matsumoto
2015	—	`conf`	Experimental demonstration of multi-pilot aided carrier phase estimation for DP-64QAM and DP-256QAM. ECOC 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
2015	—	`conf`	Laser frequency drift compensation with Han-Kobayashi coding in superchannel nonlinear optical communications. ECOC Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons
2015	—	`conf`	Separation of semiconductor laser intrinsic linewidth and 1/f noise using multiple fiber lengths with the delayed self-heterodyne method. OFC Keisuke Kojima, Yuichiro Horiguchi, Toshiaki Koike-Akino, Yasuhisa Shimakura, Kentaro Enoki, Eiji Yagyu
2015	—	`conf`	Transceiver-limited high spectral efficiency Nyquist-WDM systems. OFC 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
2014	—	`conf`	Comparison of quaternary block-coding and sphere-cutting for high-dimensional modulation. OFC David S. Millar, Toshiaki Koike-Akino, Sercan Ö. Arik, Keisuke Kojima, Kieran Parsons
2014	—	`conf`	Constant modulus 4D optimized constellation alternative for DP-8QAM. ECOC Keisuke Kojima, David S. Millar, Toshiaki Koike-Akino, Kieran Parsons
2014	—	`conf`	Cycle slip-mitigating turbo demodulation in LDPC-coded coherent optical communications. OFC Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Yoshikuni Miyata, Wataru Matsumoto, Takashi Sugihara, Takashi Mizuochi
2014	—	`conf`	Experimental demonstration of 24-dimensional extended Golay coded modulation with LDPC. OFC David S. Millar, Toshiaki Koike-Akino, Robert Maher, Domaniç Lavery, Milen Paskov, Keisuke Kojima, Kieran Parsons, Benn C. Thomsen, Seb J. Savory, Polina Bayvel
2014	—	`conf`	High-dimensional modulation for mode-division multiplexing. OFC Sercan Ö. Arik, David S. Millar, Toshiaki Koike-Akino, Keisuke Kojima, Kieran Parsons
2014	—	`conf`	Interference management with Han-Kobayashi coding: Dual-carrier coherent optical communications. ECOC Toshiaki Koike-Akino, Keisuke Kojima, David S. Millar, Kieran Parsons, Soichiro Kametani, Takashi Sugihara, Tsuyoshi Yoshida, Kazuyuki Ishida, Yoshikuni Miyata, Wataru Matsumoto, Takashi Mizuochi
2014	—	`conf`	Maximizing transmission capacity of superchannels using rate-adaptive FEC. ECOC Keisuke Kojima, David S. Millar, Toshiaki Koike-Akino, Kieran Parsons, Soichiro Kametani, Takashi Sugihara
2014	—	`conf`	Turbo demodulation for LDPC-coded high-order QAM in presence of transmitter angular skew. ECOC Toshiaki Koike-Akino, David S. Millar, Keisuke Kojima, Kieran Parsons, Tsuyoshi Yoshida, Kazuyuki Ishida, Yoshikuni Miyata, Wataru Matsumoto, Takashi Mizuochi
1990	B	`conf`	Character recognition using a dynamic opto-electronic neural network with unipolar binary weights. IJCNN Masaya Oita, Masanobu Takahashi, Shuichi Tai, Keisuke Kojima, Kazuo Kyuma