Akihiro Otaka

Publication Activity (10 Years)

Years Active: 2008-2019
Publications (10 Years): 49

Top Topics

Bandwidth Allocation

Filter Coefficients

Top Venues

Publications

Sang-Yuep Kim, Takahiro Suzuki, Jun-ichi Kani, Akihiro Otaka
Coherent Receiver DSP Implemented on a General-Purpose Server for a Full Software-Defined Access System. JOCN 11 (1) (2019)
Kota Asaka, Hirotaka Ujikawa, Hiroyuki Uzawa, Hirotaka Nakamura, Jun-ichi Kani, Akihiro Otaka, Jun Terada
Disaggregation of Time-Critical Applications in Flexible Access System Architecture [Invited]. JOCN 11 (1) (2019)
Takuya Kanai, Masamichi Fujiwara, Ryo Koma, Ryo Igarashi, Noriko Iiyama, Junichi Kani, Akihiro Otaka
Wide-Range Frequency Offset Compensation for CPFSK Used as TOM-Based Digital Coherent PON's Upstream Signals. ECOC (2018)
Akihiro Otaka
Access System Virtualization for Sustainable and Agile Development. IEICE Trans. Commun. (4) (2018)
Katsuhisa Taguchi, Kota Asaka, Shunji Kimura, Ken-Ichi Suzuki, Akihiro Otaka
Reverse Bias Voltage Controlled Burst-Mode Booster SOA in λ-Tunable ONU Transmitter for High-Split-Number TWDM-PON. JOCN 10 (4) (2018)
Xinyue Ling, Shinsuke Ibi, Kenji Miyamoto, Seiichi Sampei, Jun Terada, Akihiro Otaka
Optimization of Quantization Levels for Quantize-and-Forward Relaying with QAM Signaling. APSIPA (2018)
Sang-Yuep Kim, Takahiro Suzuki, Junichi Kani, Akihiro Otaka, Toshihiro Hanawa
Coherent Receiver DSP Implemented on a General-Purpose Server for Full Software-Defined Optical Access. OFC (2018)
Kenji Miyamoto, Naotaka Shibata, Shigeru Kuwano, Jun Terada, Akihiro Otaka
Wireless performance and mobile fronthaul bandwidth of uplink joint reception with LLR combining in split-PHY processing. J. Commun. Networks 20 (6) (2018)
Keita Nishimoto, Yushi Koyasako, Takashi Yamada, Junichi Kani, Akihiro Otaka
Software module-based 10G Optical Line Terminal for enhancing flexibility of access networks. NetSoft (2018)
Takahiro Suzuki, Sang-Yuep Kim, Junichi Kani, Akihiro Otaka, Toshihiro Hanawa
10-Gbps Real-time Burst-Frame Synchronization Using Dual-Stage Detection for Full-Software Optical Access Systems. OFC (2018)
Kazuaki Honda, Hirotaka Nakamura, Kazutaka Hara, Kyosuke Sone, Goji Nakagawa, Yoshio Hirose, Takeshi Hoshida, Jun Terada, Akihiro Otaka
Wavelength Adjustment of Upstream Signal using AMCC with Power Monitoring for WDM-PON in 5G Mobile Era. OFC (2018)
Yu Nakayama, Daisuke Hisano, Takahiro Kubo, Youichi Fukada, Jun Terada, Akihiro Otaka
Low-Latency Routing Scheme for a Fronthaul Bridged Network. JOCN 10 (1) (2018)
Takahiro Suzuki, Sang-Yuep Kim, Junichi Kani, Akihiro Otaka
Software Implementation of PON Physical-Layer Processing for Fully Software-Defined Optical Access Systems. ECOC (2018)
Daisuke Hisano, Hiroyuki Uzawa, Yu Nakayama, Hirotaka Nakamura, Jun Terada, Akihiro Otaka
Predictive Bandwidth Allocation Scheme With Traffic Pattern and Fluctuation Tracking for TDM-PON-Based Mobile Fronthaul. IEEE J. Sel. Areas Commun. 36 (11) (2018)
Kota Asaka, Hirotaka Ujikawa, Junichi Kani, Akihiro Otaka
Flexible Access System Architecture (FASA). OFC (2018)
Daisuke Hisano, Hiroyuki Uzawa, Yu Nakayama, Tatsuya Shimada, Jun Terada, Akihiro Otaka
TDD Pattern Estimation and Auto-Recovery from Estimation Error for Accommodations of Fronthaul and Secondary Services in TDM-PON. JOCN 10 (2) (2018)
Ryo Koma, Masamichi Fujiwara, Ryo Igarashi, Takuya Kanai, Junichi Kani, Akihiro Otaka
Wide Range Carrier Frequency Offset Estimation Method using Training Symbols with Asymmetric Constellations for Burst-Mode Coherent Reception. OFC (2018)
Ryo Koma, Masamichi Fujiwara, Jun-ichi Kani, Ken-Ichi Suzuki, Akihiro Otaka
Burst-Mode Digital Signal Processing That Pre-Calculates FIR Filter Coefficients for Digital Coherent PON Upstream. JOCN 10 (5) (2018)
Yu Nakayama, Daisuke Hisano, Takahiro Kubo, Youichi Fukada, Jun Terada, Akihiro Otaka
TDD-Based Rapid Fault Detection and Recovery for Fronthaul Bridged Network. IEEE Commun. Lett. 22 (3) (2018)
Daisuke Hisano, Yu Nakayama, Takahiro Kubo, Tatsuya Shimizu, Hirotaka Nakamura, Jun Terada, Akihiro Otaka
Gate-Shrunk Time Aware Shaper: Low-Latency Converged Network for 5G Fronthaul and M2M Services. GLOBECOM (2017)
Keita Takahashi, Hirotaka Nakamura, Hiroyuki Uzawa, Kenji Miyamoto, Yu Nakayama, Tatsuya Shimada, Jun Terada, Akihiro Otaka
NG-PON2 Demonstration with Small Delay Variation and Low Latency for 5G Mobile Fronthaul. ECOC (2017)
Kenji Miyamoto, Shinsuke Ibi, Tatsuya Shimizu, Jun Terada, Akihiro Otaka, Seiichi Sampei
Unified Design of LLR Quantization and Joint Reception for Mobile Fronthaul Bandwidth Reduction. VTC Spring (2017)
Masamichi Fujiwara, Ryo Koma, Junichi Kani, Ken-Ichi Suzuki, Akihiro Otaka
Performance evaluation of CPFSK transmitters for TDM-based digital coherent PON upstream. OFC (2017)
Yu Nakayama, Daisuke Hisano, Takahiro Kubo, Tatsuya Shimizu, Hirotaka Nakamura, Jun Terada, Akihiro Otaka
Novel rank-based low-latency scheduling for maximum fronthaul accommodation in bridged network. OFC (2017)
Kenji Miyamoto, Shigeru Kuwano, Tatsuya Shimizu, Jun Terada, Akihiro Otaka
Performance Evaluation of Ethernet-Based Mobile Fronthaul and Wireless CoMP in Split-PHY Processing. JOCN 9 (1) (2017)
Takumi Harada, Hirotaka Ujikawa, Manabu Yoshino, Noriyuki Oota, Ken-Ichi Suzuki, Akihiro Otaka
Dynamic software updating of OLTs without service interruption. SoftCOM (2017)
Yumiko Senoo, Kota Asaka, Takuya Kanai, Jun Sugawa, Hiroyuki Saito, Hideaki Tamai, Naoki Minato, Ken-Ichi Suzuki, Akihiro Otaka
Fairness-Aware Dynamic Sub-Carrier Allocation in Distance-Adaptive Modulation OFDMA-PON for Elastic Lambda Aggregation Networks. JOCN 9 (7) (2017)
Yu Nakayama, Hiroyuki Uzawa, Daisuke Hisano, Hirotaka Ujikawa, Hirotaka Nakamura, Jun Terada, Akihiro Otaka
Efficient DWBA Algorithm for TWDM-PON with Mobile Fronthaul in 5G Networks. GLOBECOM (2017)
Takuya Kanai, Yumiko Senoo, Kota Asaka, Jun Sugawa, Hideaki Tamai, Hiroyuki Saito, Naoki Minato, Atsushi Oguri, Seiya Sumita, Takehiro Sato, Nobuhiko Kikuchi, Shun-ichi Matsushita, Takehiro Tsuritani, Satoru Okamoto, Naoaki Yamanaka, Ken-ichi Suzuki, Akihiro Otaka
First-time Demonstration of Automatic Service Restoration by Using Inter-Central-Office OLT handover and Optical Path Switching in Metro-Access Network. ECOC (2017)
Daisuke Hisano, Hiroyuki Uzawa, Yu Nakayama, Tatsuya Shimada, Jun Terada, Akihiro Otaka
Automatic Recovery from Estimation Error for Accommodation of TDD-based Fronthaul and Secondary Service in a TDM-PON. ECOC (2017)
Takuya Tsutsumi, Yu Nakayama, Shunsuke Kanai, Manabu Kubota, Akihiro Otaka
Auto-Configurable Optical Amplifier for Simple Network Operation and Flexible Access Network Design of a Passive Optical Network. JOCN 9 (5) (2017)
Yu Nakayama, Daisuke Hisano, Takahiro Kubo, Tatsuya Shimizu, Hirotaka Nakamura, Jun Terada, Akihiro Otaka
Low-latency routing for fronthaul network: A Monte Carlo machine learning approach. ICC (2017)
Kenji Miyamoto, Tatsuya Shimizu, Jun Terada, Akihiro Otaka
Low Latency Symbol Level Transmission Scheme for Mobile Fronthaul with Intra PHY Split RAN Architecture. ECOC (2017)
Yumiko Senoo, Kota Asaka, Takuya Kanai, Jun Sugawa, Koji Wakayama, Ken-Ichi Suzuki, Akihiro Otaka
Real-time demonstration of fairness-aware dynamic subcarrier allocation for adaptive modulation in elastic lambda aggregation network. OFC (2017)
Daisuke Hisano, Tatsuya Shimada, Hiroshi Ou, Takayuki Kobayashi, Yu Nakayama, Hiroyuki Uzawa, Jun Terada, Akihiro Otaka
Effective Utilization of Unallocated Intervals in TDD-Based Fronthaul Employing TDM-PON. JOCN 9 (9) (2017)
Hiroyuki Uzawa, Hiroko Nomura, Tatsuya Shimada, Daisuke Hisano, Kenji Miyamoto, Yu Nakayama, Keita Takahashi, Jun Terada, Akihiro Otaka
Practical Mobile-DBA Scheme Considering Data Arrival Period for 5G Mobile Fronthaul with TDM-PON. ECOC (2017)
Junichi Kani, Manabu Yoshino, Toshikiyo Tanaka, Kota Asaka, Hirotaka Ujikawa, Ken-Ichi Suzuki, Akihiro Otaka
Flexible Access System Architecture to Support Diverse Requirements and Agile Service Creation. ECOC (2017)
Ryo Koma, Masamichi Fujiwara, Junichi Kani, Ken-Ichi Suzuki, Akihiro Otaka
High Sensitivity and Wide Dynamic Range Burst-Mode Coherent Receiver that Controls Gains of a SOA and TIAs for Long-Reach and High-Splitting-Ratio PON. ECOC (2017)
Takayuki Kobayashi, Hiroshi Ou, Daisuke Hisano, Tatsuya Shimada, Jun Terada, Akihiro Otaka
Bandwidth allocation scheme based on simple statistical traffic analysis for TDM-PON based mobile fronthaul. OFC (2016)
Hirotaka Ujikawa, Takashi Yamada, Ken-Ichi Suzuki, Akihiro Otaka, Hiroki Nishiyama, Nei Kato
Stand-Alone and Cooperative Deep Sleep for Battery-Driven Optical Network Unit. IEEE Internet Things J. 3 (4) (2016)
Yu Nakayama, Kazuki Maruta, Tatsuya Shimada, Tomoaki Yoshida, Jun Terada, Akihiro Otaka
Utilization Comparison of Small-Cell Accommodation With PON-Based Mobile Fronthaul. JOCN 8 (12) (2016)
Ryo Koma, Masamichi Fujiwara, Junichi Kani, Ken-Ichi Suzuki, Akihiro Otaka
Wide dynamic range burst-mode digital coherent detection using fast ALC-EDFA and pre-calculation of FIR filter coefficients. OFC (2016)
Yumiko Senoo, Shin Kaneko, Tomoaki Yoshida, Jun-ichi Kani, Kota Asaka, Ken-Ichi Suzuki, Akihiro Otaka
Hitless λ-Tuning Sequence to Reduce Tuning Delay in λ-Tunable WDM/TDM-PON. JOCN 8 (7) (2016)
Daisuke Hisano, Tatsuya Shimada, Hiroshi Ou, Takayuki Kobayashi, Shigeru Kuwano, Jun Terada, Akihiro Otaka
Efficient accommodation of mobile fronthaul and secondary services in a TDM-PON system with wireless TDD frame monitor. ICC (2016)
Kenji Miyamoto, Shigeru Kuwano, Jun Terada, Akihiro Otaka
Performance evaluation of mobile fronthaul optical bandwidth reduction and wireless transmission in Split-PHY processing architecture. OFC (2016)
Hiroshi Ou, Takayuki Kobayashi, Tatsuya Shimada, Daisuke Hisano, Jun Terada, Akihiro Otaka
Passive optical network range applicable to cost-effective mobile fronthaul. ICC (2016)
Hirotaka Ujikawa, Ken-Ichi Suzuki, Akihiro Otaka, Hiroki Nishiyama, Nei Kato
Energy-Efficient Service Multiplexing on Profile-Based TWDM Access Systems. IEEE Internet Things J. 3 (6) (2016)
Susumu Nishihara, Shigeru Kuwano, Kenji Miyamoto, Jun Terada, Akihiro Otaka
Study on protocol and required bandwidth for 5G mobile fronthaul in C-RAN architecture with MAC-PHY split. APCC (2016)
Takahiro Suzuki, Sang-Yuep Kim, Junichi Kani, Ken-Ichi Suzuki, Akihiro Otaka
Real-Time Demonstration of PHY Processing on CPU for Programmable Optical Access Systems. GLOBECOM (2016)
Noriko Iiyama, Junichi Kani, Ken-Ichi Suzuki, Akihiro Otaka
Advanced DSP for optical access networks: Challenges and opportunities. OFC (2015)
Tomoaki Yoshida, Tomohiro Taniguchi, Akihiro Otaka
Application drivers and trends for future broadband access. OFC (2015)
Naotaka Shibata, Takayoshi Tashiro, Shigeru Kuwano, Naohiko Yuki, Youichi Fukada, Jun Terada, Akihiro Otaka
Performance Evaluation of Mobile Front-Haul Employing Ethernet-Based TDM-PON With IQ Data Compression [Invited]. JOCN 7 (11) (2015)
Hiroshi Ou, Yoshihito Sakai, Hirotaka Ujikawa, Takuya Tsutsumi, Toshihito Fujiwara, Yasutaka Kimura, Takeshi Sakamoto, H. Suzuki, Jun Terada, Akihiro Otaka
Integrated Dynamic Bandwidth Allocation for Low Buffer Aggregated Passive Optical Network Systems. JOCN 7 (8) (2015)
Shigeru Kuwano, Daisuke Iida, Jun Terada, Akihiro Otaka, Naoto Yoshimoto, Shintaro Hisatake, Tadao Nagatsuma
Error Vector Magnitude Evaluation of Terahertz Transmitter Employing Optical Frequency Comb. IEICE Trans. Electron. (8) (2015)
Naotaka Shibata, Kenji Miyamoto, Shigeru Kuwano, Jun Terada, Akihiro Otaka
System level performance of uplink transmission in split-PHY processing architecture with joint reception for future radio access. PIMRC (2015)
Yumiko Senoo, Shin Kaneko, Tomoaki Yoshida, Jun Sugawa, Koji Wakayama, Shunji Kimura, Ken-ichi Suzuki, Akihiro Otaka
Demonstration of 512-ONU real-time dynamic-load-balancing with few wavelength reallocations for λ-tunable WDM/TDM-PON. OFC (2015)
Kota Asaka, Katsuhisa Taguchi, Yuki Sakaue, Ken-Ichi Suzuki, Shunji Kimura, Akihiro Otaka
High output power OLT/ONU transceivers for 40 Gbit/s symmetric-rate NG-PON2 systems. ECOC (2015)
Kenji Miyamoto, Shigeru Kuwano, Jun Terada, Akihiro Otaka
Split-PHY processing architecture to realize base station coordination and transmission bandwidth reduction in mobile fronthaul. OFC (2015)
Kazuaki Honda, Takayuki Kobayashi, Tatsuya Shimada, Jun Terada, Akihiro Otaka
WDM passive optical network managed with embedded pilot tone for mobile fronthaul. ECOC (2015)
Yumiko Senoo, Shin Kaneko, Tomoaki Yoshida, Jun Sugawa, Koji Wakayama, Ken-ichi Suzuki, Akihiro Otaka
Real-time and fair throughput control in different OSU traffic bias with DLB algorithm for λ-tunable WDM/TDM-PON. ECOC (2015)
Shin Kaneko, Tomoaki Yoshida, Shunji Kimura, Ken-Ichi Suzuki, Akihiro Otaka
Fast OLT-Protection Method Based on Normal MPCP and Backup Wavelength Pre-assignment on WDM/TDM-PONs [Invited]. JOCN 7 (11) (2015)
Yu Nakayama, Ken-Ichi Suzuki, Jun Terada, Akihiro Otaka
Signaling Based Discard with Flags: Per-Flow Fairness in Ring Aggregation Networks. IEICE Trans. Commun. (12) (2015)
Katsuhisa Taguchi, Kota Asaka, Masamichi Fujiwara, Shin Kaneko, Tomoaki Yoshida, Yoshikazu Fujita, Hideyuki Iwamura, Masayuki Kashima, Satoshi Furusawa, Masahiro Sarashina, Hideaki Tamai, Akiya Suzuki, Toshiaki Mukojima, Shunji Kimura, Ken-Ichi Suzuki, Akihiro Otaka
First field trial of 40-km reach and 1024-split symmetric-rate 40-Gbit/s X-tunable WDM/TDM-PON. OFC (2015)
Yumiko Senoo, Tomoaki Yoshida, Shin Kaneko, Jun Sugawa, Koji Wakayama, Shunji Kimura, Ken-Ichi Suzuki, Akihiro Otaka
512-ONU Real-Time Dynamic Load Balancing With Few Wavelength Reallocations in 40 Gbps λ-Tunable WDM/TDM-PON [Invited]. JOCN 7 (12) (2015)
Takuya Tsutsumi, Yoshihito Sakai, Takeshi Sakamoto, Manabu Kubota, Akihiro Otaka
Field trial and analysis of N∶1 redundant 10G-EPON using boost-type semiconductor optical amplifier. OFC (2015)
Katsuhisa Taguchi, Kota Asaka, Shunji Kimura, Ken-Ichi Suzuki, Akihiro Otaka
Burst-off-level power reduction in λ-tunable transmitter using a reverse bias voltage controlled burst-mode booster SOA for 256-split WDM/TDM-PON. OFC (2015)
Naotaka Shibata, Takayoshi Tashiro, Shigeru Kuwano, Naohiko Yuki, Jun Terada, Akihiro Otaka
Mobile front-haul employing ethernet-based TDM-PON system for small cells. OFC (2015)
Yuki Sakaue, Kota Asaka, Yumiko Senoo, Shin Kaneko, Tomoaki Yoshida, Jun Sugawa, Koji Wakayama, Ken-Ichi Suzuki, Akihiro Otaka
Optical path protection with FEC switching in WDM/TDM-PON for ring access networks. ECOC (2015)
Masamichi Fujiwara, Ryo Koma, Ken-Ichi Suzuki, Akihiro Otaka
Compact bi-directional EDFAs to support extended power budget class of TWDM-PON. ECOC (2015)
Takahiro Suzuki, Sang-Yuep Kim, Junichi Kani, Ken-Ichi Suzuki, Akihiro Otaka, Toshihiro Hanawa
Parallelization of cipher algorithm on CPU/GPU for real-time software-defined access network. APSIPA (2015)
Kenji Miyamoto, Shigeru Kuwano, Jun Terada, Akihiro Otaka
Uplink Joint Reception with LLR Forwarding for Optical Transmission Bandwidth Reduction in Mobile Fronthaul. VTC Spring (2015)
Shin Kaneko, Tomoaki Yoshida, Shunji Kimura, Ken-Ichi Suzuki, Akihiro Otaka
λ-tuning protection scheme achieving under 50-ms protection time based on MPCP and backup-wavelength pre-assignment on WDM/TDM-PONs. OFC (2015)
Kenji Nakanishi, Akihiro Otaka, Yoichi Maeda
Standardization Activities on Broadband Access Systems. IEICE Trans. Commun. (8) (2008)