Mr. Takahashi made presentations at Technical Committee on Photonic Network (PN) in November 1,2.

The titles and authours are as follows.

Authors: Haruki Takahashi, Hidetoshi Takeshita, Daisuke Ishii, Satoru Okamoto, Naoaki Yamanaka
Title： Study on the Virtual Machine Migration Scheme for the Realization of Follow the SUN Data Center
Abstract：Recent years, the power supply becomes a problem because the number of users of the data center increase rapidly as cloud computing develops. In the world wide trend getting rid of fossil fuel and nuclear energy, it is hoped to use the photovoltaic power generation which is natural energy effectively. But, it is impossible to provide services at nighttime. By moving virtual machines according to the motion of the sun, the photovoltaic natural energy can be used effectively. Then, we aim at the realization of Follow the SUN Data Center which sends and receives virtual machines between geographically away data centers. In this paper, we consider the virtual machine migration scheme using existing techniques which solve the communication continuity problem between user and virtual machine. Also, we compare existing techniques, and we consider the possibility of realizing Follow the SUN Data Center.

The web site of the MiDORi Network Technologies is now open.
Distribution of the MiDORi GMPLS protocol software is started now.

Yamanaka Lab. will exhibit a booth of the R&D of “MiDORi Network Technology” at the MPLS2010 International Conference on October 24-27.

Dr. Ishii will make an invited talk in the 3ed Japan EU Symposium on the “New Generation Network” and the “Future Internet” which well be held in Oct. 20-22 at Tampere, Finland.

Ms. Yonezu made presentations at the ECOC2010 in 21th September.

The titles and authors are as follows.

Authors: Haruka Yonezu, Ko Kikuta, Daisuke Ishii, Satoru Okamoto, Naoaki Yamanaka and Eiji Oki
Title： QoS Aware Energy Optimal Network Topology Design and Dynamic Link Power Management
Abstract：To construct energy optimal Internet, a new traffic engineering concept aggregating traffic into specific links and dynamically powering off interfaces of routers/switches should be introduced. This paper proposes a network topology design algorithm and examines link power management.

Mr. Nakahara made presentations at Technical Committee on Network Systems (NS) in September 2,3.

The titles and authours are as follows.

Authors: Kenta Nakahara, Ko Kikuta, Daisuke Ishii, Satoru Okamoto, Naoaki Yamanaka
Title： Realizing the Scalable Service Provisioning in Ubiquitous Networking Environment(uGrid) by Extending Routing Protocol
Abstract： With the advance of ubiquitous society, it is expected that everything will be allocated IP address and connected to the network. In a ubiquitous grid networking environment(uGrid) we have proposed, we define not only devices but also program functions and contents as“ Service-Part ”by allocating IP address. uGrid provides mush-up desired service for users along the flow of service by interconnecting various Service-Parts. Because we allocate IP address to Service-Parts we can manage Service-Parts within Network layer. Then, we propose a new system“ Service-Routing ”by which service provision in uGrid scales all over the world. In proposal, we propose the Network System where Service-Parts advertise the Service Cost in the same way routers advertise the link cost, which is feasible by extending OSPF. By calculating the route of the flow of service in this system, appropriate service provision that is not achievable with application layer can be realized. Thus, additionally, we propose routing
scheme of flow of service by ILP(integer linear programming) and extending Dijkstra method. We evaluated the effectiveness of proposal by computer simulation.

Mr. Tokuhashi and Mr. Marukawa and Ms. Yonezu made presentations at the OECC2010 in July 5-9.

The titles and authours are as follows.

Authors:Kazumasa Tokuhashi, Takehiro Sato, Kunitaka Ashizawa, Daisuke Ishii, Satoru Okamoto and Naoaki Yamanaka
Title：Extended MPCP Slot Data Transmission Experimental System for Active Optical Access Network
Abstract： Extended MPCP (IEEE802.3av) data transmission experimental system for optical slot-based Access Network is designed. The slot-based two-way communication was successfully established by extended MPCP. The method does not need to analyze frame-header at switch system.

Authors:丸川さん
Title: Reducing Network Power Consumption Using Dynamic Link Metric Method and Power Off Links
Abstract：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.

Authors:米津さん
Title: Reducing Network Power Consumption Using Dynamic Link Metric Method and Power Off Links
Abstract：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.

Mr. Tokuhashi’s letter regarding with  Active Optical Access Network was published in Journal of IEICE（Aug. 2010）

title:Dynamic Packet (Frame) Based Ranging Method for Active Optical Access Network
authors:Kazumasa TOKUHASHI, Kunitaka ASHIZAWA, Daisuke ISHII, Yutaka ARAKAWA, Satoru OKAMOTO, and Naoaki YAMANAKA
abstract:In an active optical access network with high-speed optical switches, a precise ranging method adopting dynamic packet (frame) is proposed. In the experiment using our developed prototypes of OLT, ONUs and a switch emulator, a dynamic packet based ranging method between OLT and ONUs was successfully executed.”,”

Mr. Tokuhashi was given an award to at the ceremony of “Sentan Gizyutsu Awards”.

These awards are prestigious awards for students in the science and engineering majors and young researchers in Japan.
“Sentan Gizyutsu” means “high technology/advanced technology”.

Mr. Tokuhashi was with a special award for his achievements in the next generation optical access network system using ultra high-speed PLZT optical switches.

Mr. Takeshita made presentations at the COIN2010 in July 11-14.

The titles and authours are as follows.

Authors:Hidetoshi Takeshita, Daisuke Ishii, Naoaki Yamanaka
Title：High-energy Efficient Layer-3 Network Architecture based on Solitary Universal Cloud Router and Optical Aggregation Network
Abstract：This paper proposes high-energy efficient future-Internet architecture. All traffic is aggregated to a solitary universal cloud router through an optical aggregation network. Evaluation shows power consumption can be reduced to 1/1000 compare to present Internet.