Published Papers - NAKACHI Takayuki

[Invited] MPEG Media Transport Technologies and Its Application to Immersive Media Communication Services

Takayuki Nakachi

IEEE International Conference on Integrated Circuits, Design, and Verification (ICDV2017)     2017.10 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

Rate-Adaptive FF-LDGM Code with Selective Inter-leaving Scheme

Takayuki Nakachi, Tatsuya Fujii

IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2016) ( IEEE )    116 - 121   2016.10 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

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This paper introduces a rate-adaptive FireFort-LDGM (FF-LDGM) code for MMT adaptive Application Layer FEC (AL-FEC). The FF-LDGM code is an ISO/IEC MPEG international standard issued in Feb. 2015. It can handle a wade range of block lengths from a small number of packets to several thousands of packets. Especially, it is useful for real-time UHD video transmission. In this paper, we focus on recent advances in the rate adaptive FF-LDGM code. It provides a rate adaptive function that allows the coding rate to be adaptively changed to suit the network characteristic. We improve the error recovery performance of the rate-adaptive scheme by using selective interleaving. Simulation results demonstrate its superior adaptive performance.

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[Best Paper Award] Layered Lossless Video Coding based on Slepian-Wolf Theorem

Takayuki Nakachi, Tatsuya Fujii

IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2015)     652 - 657   2015.11 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

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Robust UHD Video Transmission using MMT FireFort-LDGM Code

Takayuki Nakachi, Yoshihide Tonomura, Daisuke Shirai, Takahiro Yamaguchi, Tatsuya Fujii

2015 IEEE International Conference on Multimedia and Expo Workshops (ICMEW 2015) ( Institute of Electrical and Electronics Engineers Inc. )    2015.07 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

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This paper introduces a FireFort-LDGM (FF-LDGM) code that is part of ISO/IEC 23008-10 (MMT AL-FEC codes) and its application to robust Ultra High Definition (UHD) video transmission. It is especially useful for UHD real-time video streaming because that it can easily handle contiguous streams containing over several thousand packets. Simulation results show its high error recovery performance with low-complexity. We also show a robust UHD video transmission scheme that uses the FF-LDGM code and its feasibility via 8K Super High-Vision live streaming over global shared IP networks at FIFA World Cup 2014 Brazil.

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Robust UHD Video Transmission using MMT FireFort-LDGM Code

Takayuki Nakachi, Yoshihide Tonomura, Daisuke Shirai, Takahiro Yamaguchi, Tatsuya Fujii

IEEE International Conference on Multimedia and Expo Workshops (ICMEW 2015)     2015.07 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

A Failure-tolerant and Spectrum-efficient Wireless Data Center Network Design for Improving Performance of Big Data Mining

Katsuya Suto, Hiroki Nishiyama, Nei Kato, Takayuki Nakachi, Toshikazu Sakano, Atsushi Takahara

IEEE Vehicular Technology Conference (VTC2015 Spring) ( IEEE )    2015.05 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

An MDRU Distributed Storage System Using Layered LDGM Codes

Takayuki Nakachi, Atsushi Okada, Tatsuya Fujii

International Symposium on signal, Image, Video and Communications (ISIVC2014)     2014.11 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

MMT AL-FEC Codes for Networked Distributed Storage

Takayuki Nakachi, Atsushi Okada, Tatsuya Fujii

IEEE International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS2014) ( IEEE )    2014.11 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

Toward Integrating Overlay and Physical Networks for Robust Parallel Processing Architecture

Katsuya Suto, Hiroki Nishiyama, Nei Kato, Takayuki Nakachi, Tatsuya Fujii, Atsushi Takahara

IEEE Network ( IEEE )    2014.07 [ Peer Review Accepted ]

Type of publication: Research paper (scientific journal)

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An Overlay Network Construction Technique for Minimizing the Impact of Physical Network Disruption in Cloud Storage Systems

Katsuya Suto, Hiroki Nishiyama, Nei Kato, Takayuki Nakachi, Tatsuya Fujii, Atsushi Takahara

IEEE International Conference on Computing, Networking and Communications (ICNC2014) ( IEEE )    2014.02 [ Peer Review Accepted ]

Type of publication: Research paper (international conference proceedings)

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