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Akihiro Otaka
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2010 – 2019
- 2019
- [j25]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): A33-A39 (2019) - [j24]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): A96-A102 (2019) - 2018
- [j23]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): 498-501 (2018) - [j22]Akihiro Otaka:
Access System Virtualization for Sustainable and Agile Development. IEICE Trans. Commun. 101-B(4): 961-965 (2018) - [j21]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): 536-545 (2018) - [j20]Yu Nakayama, Daisuke Hisano, Takahiro Kubo, Youichi Fukada, Jun Terada, Akihiro Otaka:
Low-Latency Routing Scheme for a Fronthaul Bridged Network. JOCN 10(1): 14-23 (2018) - [j19]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): 104-113 (2018) - [j18]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): 431-439 (2018) - [j17]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): 461-470 (2018) - [j16]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): 2508-2517 (2018) - [c48]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: 159-164 - [c47]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: 1-3 - [c46]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: 1-3 - [c45]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: 500-505 - [c44]Kota Asaka, Hirotaka Ujikawa, Junichi Kani, Akihiro Otaka:
Flexible Access System Architecture (FASA). OFC 2018: 1-3 - [c43]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: 1-3 - [c42]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: 1-3 - [c41]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: 1-3 - [c40]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: 1-3 - 2017
- [j15]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): A46-A54 (2017) - [j14]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): 446-455 (2017) - [j13]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): 616-624 (2017) - [j12]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): D1-D9 (2017) - [c39]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: 1-3 - [c38]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: 1-3 - [c37]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: 1-3 - [c36]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: 1-3 - [c35]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: 1-3 - [c34]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: 1-3 - [c33]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: 1-3 - [c32]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: 1-6 - [c31]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: 1-6 - [c30]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: 1-6 - [c29]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: 1-3 - [c28]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: 1-3 - [c27]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: 1-3 - [c26]Takumi Harada, Hirotaka Ujikawa, Manabu Yoshino, Noriyuki Oota, Ken-Ichi Suzuki, Akihiro Otaka:
Dynamic software updating of OLTs without service interruption. SoftCOM 2017: 1-5 - [c25]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: 1-5 - 2016
- [j11]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): 494-502 (2016) - [j10]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): 1427-1436 (2016) - [j9]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): 486-494 (2016) - [j8]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): 919-927 (2016) - [c24]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: 1-5 - [c23]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: 1-6 - [c22]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: 1-6 - [c21]Hiroshi Ou, Takayuki Kobayashi, Tatsuya Shimada, Daisuke Hisano, Jun Terada, Akihiro Otaka:
Passive optical network range applicable to cost-effective mobile fronthaul. ICC 2016: 1-6 - [c20]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: 1-3 - [c19]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: 1-3 - [c18]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: 1-3 - 2015
- [j7]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. 98-C(8): 799-807 (2015) - [j6]Yu Nakayama, Ken-Ichi Suzuki, Jun Terada, Akihiro Otaka:
Signaling Based Discard with Flags: Per-Flow Fairness in Ring Aggregation Networks. IEICE Trans. Commun. 98-B(12): 2431-2438 (2015) - [j5]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): 814-824 (2015) - [j4]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): B16-B22 (2015) - [j3]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): B29-B37 (2015) - [j2]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): B202-B211 (2015) - [c17]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: 484-487 - [c16]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: 1-3 - [c15]Masamichi Fujiwara, Ryo Koma, Ken-Ichi Suzuki, Akihiro Otaka:
Compact bi-directional EDFAs to support extended power budget class of TWDM-PON. ECOC 2015: 1-3 - [c14]Kazuaki Honda, Takayuki Kobayashi, Tatsuya Shimada, Jun Terada, Akihiro Otaka:
WDM passive optical network managed with embedded pilot tone for mobile fronthaul. ECOC 2015: 1-3 - [c13]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: 1-3 - [c12]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: 1-4 - [c11]Noriko Iiyama, Junichi Kani, Ken-Ichi Suzuki, Akihiro Otaka:
Advanced DSP for optical access networks: Challenges and opportunities. OFC 2015: 1-3 - [c10]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: 1-3 - [c9]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: 1-3 - [c8]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: 1-3 - [c7]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: 1-3 - [c6]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: 1-3 - [c5]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: 1-3 - [c4]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: 1-3 - [c3]Tomoaki Yoshida, Tomohiro Taniguchi, Akihiro Otaka:
Application drivers and trends for future broadband access. OFC 2015: 1-3 - [c2]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: 1375-1379 - [c1]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: 1-5
2000 – 2009
- 2008
- [j1]Kenji Nakanishi, Akihiro Otaka, Yoichi Maeda:
Standardization Activities on Broadband Access Systems. IEICE Trans. Commun. 91-B(8): 2454-2461 (2008)
Coauthor Index
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