Details of a Researcher - Yamanaka, Naoaki

Presentations -

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Experiment of Transport and Control Protocols in Control-plane Integrated Next Generation Wide Area Layer2 Network

Daisuke Ishii, Kou Kikuta, Satoru Okamoto, YAMANAKA NAOAKI

The 35th European Conference on Optical Communication (ECOC 2009) (Vienna, Austria) ,

2009.09

Oral presentation (general)

Newly Structured Router Network Architecture using Cloud Control Plane and Forwarding Plane

Sho Shimizu, Shan Gao, Daisuke Ishii, YAMANAKA NAOAKI

International Workshop on the Network of the Future 2009(Future-Net2009) (Dresden, Germany) ,

2009.06

Oral presentation (general)

This paper proposes a novel network architecture called cloud control plane (Cloud C-plane) to reduce the power consumption of networks. In Cloud C-plane, the forwarding functions and control functions are decoupled, and the control functions are placed in the cloud. In addition, physical network topology is modified to improve the energy efficiency when the load of traffic changes. The routing engine on a dynamically reconfigurable processor (DRP) is a key component of Cloud Cplane. We implement the prototype of the routing engine on an actual DRP, and the experimental results show the execution time of the prototype is 19 times faster in the shortest path calculation.

Secure and Scalable Optical Access Network using PLZT High-speed Optical Switches

Kazumasa Tokuhashi, Kunitaka Ashizawa, Daisuke Ishii, Yutaka Arakawa, Koji Wakayama,YAMANAKA NAOAKI

High Performance Switching and Routing(HPSR2009) (Paris, France) ,

2009.06

Oral presentation (general)

We are proposing a new optical access network architecture using PLZT 10 nsec high-speed optical switches, called Active Optical Network (ActiON). Our architecture can increase four times the number of subscribers as well as double the distance between OLT and ONUs than GE-PON. Moreover, a user can establish secure communication in ActiON. Because ActiON uses not broadcasting system but slot based switching system. ActiON has to overcome a Discovery process issue because an optical switch can not broadcast. In this paper, we propose a new Discovery process technique. Through simulation results and experimental results, we show that our proposed architecture is able to complete Discovery process with accuracy.

Experiments of GMPLS based layer2 path control functions for next generation wide area layer2

Daisuke Ishii, Kou Kikuta, Masahiro Nishida, Yutaka Arakawa, Satoru Okamoto,YAMANAKA NAOAKI

5th International Conference on IP+Optical Network (iPOP2009) (NICT Headquarters, Koganei, Tokyo, Japan) ,

2009.06

Oral presentation (general)

A Novel Traffic Engineering Method using On-Chip Diorama Network on Dynamically Reconfigurable Processor DAPDNA-2

Shan Gao, Taku Kihara, Sho Shimizu, Yutaka Arakawa,YAMANAKA NAOAKI, Akifumi Watanabe

High Performance Switching and Routing( HPSR2009) (Paris, France) ,

2009.06

Oral presentation (general)

This paper proposes a novel traffic engineering method using on-chip diorama network that consists of virtual nodes and virtual links. The diorama network is implemented on reconfigurable processor DAPDNA-2. In these years, traffic engineering has widely researched to guarantee QoS (Quality of Service). The proposal is an experimental solution with the onchip diorama network, where virtual links and virtual nodes are constructed by some PEs (processing elements). We obtain the realistic traffic fluctuation through the behavior of virtual packets exchanged on the on-chip diorama network. In this paper, as first trial to achieve our final goal, we implemented diorama network and confirmed basic path calculation, where both functions are an essential function of our algorithm. The diorama network traffic engineering can realize more sophisticated network design like adaptive traffic balancing or multi-metric design.

Recover-Forwarding Method In Link Failure With Pre-established Recovery Table For Wide Area Ethernet

Midori Terasawa, Masahiro Nishida, Sho Shimizu, Yutaka Arakawa, Satoru Okamoto, YAMANAKA NAOAKI

IEEE International Conference on Communications (ICC 2009) (Dresden Germany) ,

2009.06

Oral presentation (general)

This paper proposes a fast fault recovery method for the wide area Ethernet. To achieve fast recovery, a pre-established forwarding table is introduced. The pre-established table is looked up when a fault occurs, and frames are forwarded without frame loss. Ethernet lacks of fault recovery features required in Wide Area Network (WAN) since it is originated as Local Area Network (LAN) technology. Protection or restoration is a typical method for fault recovery, but a lot of frame losses are inevitable. Our proposal can decrease frame losses since frames are forwarded without waiting for path switching to be completed to use the pre-preparation table. In addition, the proposed method can be operated with the legacy forwarding method seamlessly. The simulation results show that frame loss decreases to 40 % or less with our proposed method.

Reducing Network Power Consumption Using Dynamic Link Metric Method and Power Off Links

YAMANAKA NAOAKI

インターネットアーキテクチャ研究会 (機械振興会館（東京）) ,

2009.06

Oral presentation (general), IEICE

As the high-speed network technologies developing,the traffic in the Internet increase rapidly. The network power consumption has come up to 10% of the worldwide energy consumption. In order to reduce this kind of consumption, we propose a novel method, which dynamically modifies the weights of links and makes traffic gather to certain links and then set some links of which the load no traffic Powe-Off. We also did much work in the network simulations, and the result shows that the method has a good effect in reducing the network power consumption.

10054136354120090721135140PDF1.pdf

Simple Lightning Detection System Experiments Using Networked Sensors

Masayasu YAMAGUCHI, YAMANAKA NAOAKI

IEICE Technical Report (神奈川県横浜市　慶應大学理工学部　矢上キャンパス) ,

2009.05

Oral presentation (general)

This paper reports a prototype simple lightning detection system using networked multisite sensors and its experimental results. To achieve a low-cost system compared with the conventional systems, a simple structure based on a general-purpose personal computer is employed in a lightning detector. We experimentally demonstrate the feasibility of observing the lightning pulses by using a prototype system consisting of three lightning detectors deployed at three observation sites. We also discuss issues for improving the performance of the system.

An Evaluation on Optical Switch Element in Active Optical Access Syst

Koji Wakayama, Daisuke Mashimo, Jun Sugawa, Hiroki Ikeda, Michitaka Okuno, Kenichi Sakamoto, Yutaka Arakawa,YAMANAKA NAOAKI

電子情報通信学会2009総合大会 (愛媛大学) ,

2009.03

Oral presentation (general), 電子情報通信学会

10054136354020090721131913PDF1.pdf

広域レイヤ2 ネットワークにおける遅延揺らぎの小さいキューイング方式

Kazuko YONEZAWA, Midori TERASAWA, Masahiro NISHIDA, Sho SHIMIZU, Yutaka ARAKAWA, Satoru OKAMOTO, and YAMANAKA NAOAKI

IEICE Technical Report (岐阜長良川温泉国際会議場) ,

2009.03

Oral presentation (general)

In recent years, Wide Area Ethernet has become widespread. Wide Area Ethernet is a technique which was expanded from the Ethernet to connect two separated bases using Ethernet. Because Ethernet is a technique for Local Area Networks (LANs), we need a queuing method which controls bandwidth, delay, and delay jitter to use real-time applications in Wide Area Ethernet. The conventional method named Deficit Round Robin (DRR) can control bandwidth and delay. In DRR, a Deficit Counter (DC) is set at each queue to control the frame size which the queue is able to send. However, it is difficult to control the delay jitter which greatly affects strictly real-time applications like haptic technology. Accordingly, we propose a method named Loan-Deficit Round Robin (L-DRR). L-DRR controls bandwidth, delay, and delay jitter using not only DC but also a Loan Counter (LC) to control the maximum delay. Finally, we show how our method affects delay jitter using a computation simulation.

Distributed Wavelength Allocation Scheme Considering Four Wave Mixing in All Optical Networks

Hirofumi Yamashita, Kazuki Irie, Yutaka Arakawa, Satoru Okamoto and YAMANAKA NAOAKI

IEICE TECHNICAL REPORT (久部良多目的集会施設(与那国島）) ,

2009.03

Oral presentation (general)

In this paper a novel distributed wavelength allocation scheme considering the four wave mixing (FWM) in all optical network is proposed. A main feature of the proposed scheme is that wavelengths are allocated by the wide interval as much as possible with considering wavelength usage condition of each link. Allocated wavelengths are calculated by a proposed expression wavelength intervals. Because of keeping the wide wavelength interval, the propose scheme can avoid using adjacent wavelengths and, can restrain generation of FWM. Evaluation results of the blocking probability are presented. It is indicated that the proposed scheme can improve the blocking probability values.

A Proposal for A uGrid Multi-Service Video Delivery Network Considers Security

Yuki Susa, Yusuke Okazaki, Ryota Usui, Yutaka Arakawa, Satoru Okamoto, YAMANAKA NAOAKI

IEICE Technical Report (久部良多目的集会施設(与那国島）) ,

2009.03

Oral presentation (general)

everything has an IP address and connect to the networks. In recent years, based on the above assumptions, a concept of the ubiquitous grid network environment (uGrid) has been generated. In uGrid, we de ne everything all over the world given IP address as a service parts. Users will freely search for service parts that they want to use from all over the world through the networks, and then, they combine each parts so that they can construct a desired distributed system, service, and working environment. So, in this study, we propose the Multi-Service Video Delivery Network for the uGrid service, which is different from the unidirectional video delivery system like a existing TV reception and enable to response to various QoS(Quality of Service) watching demands. Moreover, we attempt to construct a video f ltering transmission system using PLAYSTATION 3(PS3) as a part of the delivery service, in which we consider the needs of the individual privacy protection and the increase of the home-use game consoles or Cell Broadband Engine(Cell) in uGrid. As a result of that, we con rmed that the PS3 functioned as a service parts of the video delivery system in uGrid.

Service Parts Connection based on Dynamic Lightpath Establishment in uGrid

Yusuke Okazaki, Yuki Susa, Ryota Usui, Yutaka Arakawa, Satoru Okamoto, YAMANAKA NAOAKI

IEICE Technical Report (久部良多目的集会施設(与那国島）) ,

2009.03

Oral presentation (general)

With the advance of ubiquitous society, it is expected that everything will be connected to the network.Then, a ubiquitous grid networking environment (uGrid) has been proposed. In this environment, everything is defined as service parts and some service parts will be combined to provide new service for users. On the other hand, TV broadcast is one of the typical image distribution system that broadcasts contents to users. Thus, there are limitations by one-way system. In this paper, we propose next generation image distribution system in uGrid as a replacement of TV broadcast. In proposal, service parts are connected by lightpath which set up with GMPLS so that fixed bandwidth can be kept. As an emulation of proposal system, we implement the experimental environment which composed by Layer 2 switch and we demonstrate potential of service parts connection in proposal.

Parameter Design and Dynamic Slot Assignment considering TCP Throughput on Active Optical Access Network

Kunitaka Ashizawa, Kazumasa Tokuhashi, Kou Kikuta, Daisuke Ishii, Yutaka Arakawa, Satoru Okamoto and YAMANAKA NAOAKI

IEICE Technical Report (久部良多目的集会施設(与那国島）) ,

2009.03

Oral presentation (general)

High-speed Network, today and futureStudy on P2P Contetnt Delivery Systemu Considering Security

Hirofumi Yamashita, Kazuki Irie, Mikio Kaneko, Yutaka Arakawa, Satoru Okamoto,YAMANAKA NAOAKI

IEICE Technical Report (国内) ,

2009.03

Oral presentation (general)

大容量コンテンツ伝送において, コンテンツサーバの負荷軽減および効率的なコンテンツ配信を可能とするために, P2P を利用した配信方法が提案されている. しかし, コンテンツサーバは, すべてのクライアント情報を管理しており, コンテンツ検索時において, コンテンツ要求を行ったクライアントにコンテンツ取得者の情報をすべて提供してしまう点, クライアント間のダウンロードをサーバが管理できないという点において, セキュリティ上の問題がある. そこで, ネットワークをクラスタ化し, コンテンツサーバおよびスーパーノードにおいて, クライアント情報を分散的に管理すると共に, すべてのコンテンツ要求をサーバ経由で処理し, 配信許可を得たユーザのみ通達することによりコンテンツ要求先のクライアント情報の開示を限定し, セキュリティを考慮したコンテンツ配信ネットワークの検討を行った. その結果を報告する.

Establishment of VLAN Tag Swapped Path on GMPLS controllingWide Area Layer-2 Network

Kou Kikuta, Masahiro Nishida, Daisuke Ishii, Satoru Okamoto YAMANAKA NAOAKI

The Optical Fiber Communication Conference and The National Fiber Optic Engineers Conference (OFC/NFOEC) 2009 (SAN,DIEGO, CALIFORNIA, USA) ,

2009.03

Oral presentation (general)

Demonstration of the In-band Message Communication Channel and Mac-in-Mac technology for GMPLS Controlled New Generation Layer2 Transport Networks

Satoru Okamoto, Yutaka Arakawa, YAMANAKA NAOAKI

The Optical Fiber Communication Conference and The National Fiber Optic Engineers Conference (OFC/NFOEC) 2009 (SAN,DIEGO, CALIFORNIA, USA) ,

2009.03

Oral presentation (general)

Experiments of transport and control protocols for next generation wide area Layer2 networks

Satoru Okamoto, Kou Kikuta, Masahiro Nishida, Daisuke Ishii, Yutaka Arakawa, YAMANAKA NAOAKI

IEICE Technical Report (静岡県三島) ,

2009.02

Oral presentation (general)

As increasing Ethernet service users and enhancing service functions, a next generation wide area layer2 network beyond the state-of-the-art carrier grade Ethernet is expected. For realizing the next generation layer2 network (NGL2), we have proposed new layer2 protocol technologies based on Ethernet technologies and have developed elemental functional systems. In this article, a newly developed NGL2 prototype system is reported. The prototype system provides an in-band message communication channel (IMCC) function, Mac-in-Mac frame transport mechanism, and GMPLS based layer2 path control functions.

Fast Solution of Link Disjoint Path Algorithm on Parallel Reconfigurable Processor DAPDNA-2

Taku KIHARA, Sho SHIMIZU, Shan GAO, Yutaka ARAKAWA, Naoaki YAMANAKA, Akifumi WATANABE

IEICE TECHNICAL REPORT (慶應義塾大学日吉キャンパス) ,

2009.01

Oral presentation (general)

In next generation network, a high level reliabilty is strong required. In a protection, which is the one of network survivable technology, it is important to use a link-disjoint paths pair of lowest total cost in a view of network resource efficiency. However, the link-disjoint paths pair calculation is NP Complete and it takes great investment of time. In order to solve this problem, we propose a high-speed method of link-disjoint paths pair calculation based on parallel reconfigurable processor. Our proposed method calculates and finds all paths in network from all network link patterns, and then calculates all link-disjoint paths pairs and selects optimal solution. A parallel execution and data flow execution enable our propose to high-speed calculations. A two performance evaluation results show that our proposed method improves calculation time more than 20 times compared to conventional optimal link-disjoint paths pair calculation algorithm.

New Generation P2P Networks based on Dynamic Path Establishment with GMPLS

Mikio KANEKO, Shota YAMADA, Hirofumi YAMASHITA, Daisuke ISHII, Yutaka ARAKAWA, Satoru OKAMOTO, and YAMANAKA NAOAKI

IEICE Technical Report (神戸大学) ,

2008.12

Oral presentation (general), IEICE

Today, advanced network architectures like NGN are growing rapidly. These network architectures realize active bandwidth control from network application. Bandwidth control scheme makes broadband network architecture more beneficial. In this paper, we design and implement New Generation P2P Networks based on Dynamic Path Establishment with GMPLS. We show the effectiveness of our designed advanced P2P network architecture by computation simulation. We also show that our P2P network architecture is suitable for rich contents delivery by implementation.

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