Masaki Murakami

Trends in Research and Development of the Latest Transponder Technology Supporting Expansion of APN Domains

Masaki Murakami, H. Date, Shunsuke Homma, Soichiroh Usui et autres

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Experimental Evaluation on Priority-Aware Guaranteed Resource Allocation for Resource Pool Based Reconfigurable Hardware

Masaki Murakami, Takashi Kurimoto, Satoru Okamoto, Naoaki Yamanaka

This paper proposes a priority-aware guaranteed hardware resource allocation in virtual packet optical nodes (VPONs) and describes experimental evidence of service provisioning with the proposed method on testbed. A network based on the VPON brings solution of service diversification and traffic explosion …

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Networking Experiment of Domain-Specific Networking Platform Based on Optically Interconnected Reconfigurable Communication Processors

Masaki Murakami, Takashi KURIMOTO, Satoru OKAMOTO, Naoaki Yamanaka et autres

A domain-specific networking platform based on optically interconnected reconfigurable communication processors is proposed. Some application examples of the reconfigurable communication processor and networking experiment results are presented.

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Experiment of Nationwide Multi-Route Skew Cancelling for Dynamic Mapping of MAC Signals over SDM/WDM Network Testbed

Masaki Murakami, Yoshihiko UEMATSU, Satoru Okamoto, Naoaki Yamanaka et autres

This paper demonstrates nationwide parallel transmission multi-route skew cancelling of dynamically mapped MAC signals over SDM/WDM network testbed. Experimental results show the skew handling succeeded in coping with 95 ms skew with low-rate traffic.

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Lane alignment characteristics in massively parallel Ethernet-based transmission systems

Kyosuke Sugiura, Masaki Murakami, Yoshihiko UEMATSU, Satoru Okamoto et autres

We have proposed the 10 Tbps class dynamic bandwidth flexible Ethernet-based massively parallel media access control (MAC) system; “Dynamic MAC”. The dynamic MAC requires up to 400 lanes parallel transmission and up to 10 ms skew canceling. Therefore, lane alignment among 400 …

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Fault-Tolerant Multi-Path Routing Method under High Network Failure Environment

Taichi Okumura, Masaki Murakami, Yoshihiko UEMATSU, Satoru Okamoto et autres

Position estimation method for a bicycle to reduce accidents between a bicycle and autonomous driving vehicle by linking multiple cameras using CPS

Ryosuke Shirai, Goki Yamamoto, Masaki Murakami, Satoru Okamoto et autres

Person Tracking Method Based on Edge-to-Edge Cooperation for Specific Person Search

Ryota Kawase, Masaki Murakami, Yoshihiko UEMATSU, Satoru Okamoto et autres

Hierarchical round-robin mapper emulator for evaluating massively parallel Ethernet physical layer developing

Kyosuke Sugiura, Masaki Murakami, Yoshihiko UEMATSU, Satoru Okamoto et autres

Future bandwidth-consuming services will require 10 Tbps class network interface. Massively parallel transmission with dynamic bandwidth assignment becomes a key. To realize the 10 Tbps class dynamic bandwidth flexible media access control (MAC) mechanism, we have proposed “Dynamic MAC” concept. The key …

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Assessing service survivability under failure conditions in reliable multipath network testbed

Ryota Kawase, Taichi Okumura, Masaki Murakami, Yoshihiko UEMATSU et autres

This study reports that the expected capacity guaranteed routing (ECGR) testbed was built and the face recognition service was provided in the testbed. ECGR, which guarantees that the expected capacity calculated based on link failure probability exceeds the requested capacity of flows, …

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End-to-End Management of All Optical Disaggregated Network and Applications with Cloud Native Environment for the Smart World Network Infrastructure

Yusuke Hirota, Shinya Nakamura, Kohei Shiomoto, Hyde Sugiyama et autres

We show a multi-cloud-based network infrastructure for Smart World with demonstrating several types of network control and service including PTP devices for Private LTE, AI-based SFC Platform, WhiteBox-based reliable routing, and disaggregated SDM network.

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Kalman Filter-based Heavy Hadoop Job Detection Method for Energy Efficient Hybrid Electro-Optical Intra-Data Center Networks

Masaki Murakami, Nicolas Dubrana, Yoshihiko UEMATSU, Satoru Okamoto et autres

This paper proposes Hadoop job detection method using the Kalman filter and network configuration procedure for hybrid electro-optical intra-data center networks. The simulation results show improvement of detection accuracy and energy saving effect.

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