Mr.Zhang’s paper is accepted in the International Journal of Computer and Information Science (IJCIS).
The detail of paper is below.

Title: A Novel Architecture of Energy Efficient and Enhanced-type Data-centric Network (E3-DCN)
Authors: Shanming Zhanga, Hidetoshi Takeshita, Satoru Okamoto, Naoaki Yamanaka
Abstract: Information-centric networking (ICN) as an alternative has been researched for future Internet architecture. In this paper, a novel network architecture called Energy Efficient and Enhanced-type Data-centric Network (E3-DCN) is proposed for ICN. E3-DCN not only realizes ICN but also has the ability of data generation by organizing and combining relevant resource such as original data and kinds of processing services. In addition, in order to improve energy efficiency of data transmission, E3-DCN chooses optimal transmission path to transmit data based on packet switching and optical switching. Moreover, based on current traffic situation, E3-DCN reconfigures network topology such as unused nodes and links to operate in sleep mode for energy saving dynamically. And meanwhile, data caching strategies are applied into E3-DCN for data distribution based on the distribution of users. Data caching shortens transmission distance, so data transmission energy, latency and network load is decreased. Based on these approaches, E3-DCN achieves an energy efficient network.

Yamanaka Lab. will exhibit at the Keio-Technomall2013 at Tokyo International Forum on Dec. 13th.

The research topics we will exhibit this year are the followings.
「The MiDORi
– self-organized energy-saving network -」
「E3-DCN: Energy Efficient, and Enhanced-type Data Centric Network」
「EVNO-Energy Virtual Network Operator-」
「Elastic Lambda Aggregation Network (EλAN)」

You can see the location of these booths(35-37) and research outlines here.

Please come and see us!

Ms.Hirao’s (second year of master course) paper is accepted in special number of IEICE.
The detail of paper is below.

Title: Fast Calculation Method of Point to Multi-point Routing for Energy Efficient Network MiDORi
Authors: Akiko Hirao, Hidetoshi Takeshita, Satoru Okamoto, Eiji Oki and Naoaki Yamanaka
Abstract: With the increase of traffic and energy consumption of network, energy-saving is an urgent matter. The realization of Multi-point to Multi-point service which can use network resources effectively is also needed. In this paper, we propose an SPMST (SuperPosed Minimum Spanning Tree) algorithm which can reduce the energy consumption of network by aggregating traffic on specified links and putting unused links into sleep mode. This can cover requirements of MP2MP MiDORi network. By computational simulation, the energy efficiency, short calculation time and capability of SPMST are presented. We verified practical effectiveness of proposed algorithm by using a prototype system of MiDORi network.

Yamanaka Lab. will exhibit at the MPLS/SDN2013 at Washington D.C. on Nov. 17-20.

The research topics we will exhibit this year are the followings.
“Elastic Lambda Aggregation Network (EλAN)” and
“Energy Efficient and Enhanced-type Data Centric Network (E3-DCN)”

Yamanaka Lab. will exhibit at the The 3rd International Symposium on Network Virtualization at Tokyo Univ. Japan on Sept. 6.

The research topic we will exhibit in the symposium is the following.
“OLT Migration realized by Network Function　Virtualization” as one of the research activities of
the Elastic Lambda Aggregation Network (EλAN) project.

Keio University Yamanaka Lab. will exhibit in iPOP 2013 at TKP Otemachi Conference Center on May, 30th, 31st.
This year, we will demonstrate the prototype system of Elastic Optical Aggregation Network (EλAN), which realizes flexible access aggregation network by light wave communication. EλAN enables network reconfiguration for flexible bandwidth, flexible service addition/deletion, and fault recovery. EλAN integrates some service networks, whose are individually accommodated corresponding for each services. Then, we can reduce the number of network equipment, power consumption, and improve disaster tolerance.
We will explain for you, and are looking forward to meeting you. Please join the conference, and see our research achievement.

Prof. Yamanaka will make a special invited talk at IEICE technical conference on Communication Quality (CQ) in April 18-19.

The titles and authours are as follows.

Authors: Naoaki Yamanaka, Satoru Okamoto, Naohiko Shibuta, Shanming Zhang, Takuro Okano (Keio Univ.), Takashi Kurimoto (NTT)
Title：[Special Invited Talk] Energy Efficient and Enhanced-type Data Centric Network (E3-DCN) and related virtualization technologies — Network Virtualization and Smart Photonic/Energy Networks —
Abstract： The New Generation Network supports network virtualization technique that creates multi-slice network on one physical network. E3-DCN is newly proposed using optical packet switching network and optical path switching network. Optical packet network has high-network efficiency and flexibility. On the other hand, optical path network has huge band width. Combination of both packet and path technique can create energy efficient network. In addition, virtualization techniques apply to future photonic backbone and also smart energy network are also highlighted.

Mr. Zhang will make presentations at IEICE technical conference on Network Systems in April 18-19.

The titles and authours are as follows.

Authors: Shanming zhang, Hidetoshi Takeshita, Takashi Kurimoto, Satoru Okamoto, Naoaki Yamanaka
Title： Optimal Multiple Shared Multicast Trees for Many-to-Many Multicasting Communication Approach
Abstract： Multicast, which provides an efficient way of disseminating data from a source to all the members in a multicast group, is usually used to solve one-to-many (1:N) communication problem such as transmissions of a multimedia content for many users. As the Internet becomes increasingly popular and the same content or service is distributed in many place, many-to-many (M:N) communication have emerged such as transmission among many sources and destinations. In this paper, we study the M:N communication optimal problem among many the same sources and different destinations, and propose an many-to-many multicasting routing approach to address effectively this problem. In the proposal, multiple shared multicast trees are used among many source and destinations. By comparing with a single shared shortest path tree approach, the proof of correctness of the proposal is proved. And at last, the analysis of simulations is also provided.

The E3-DCN project of the Yamanaka Labs. get an S grade evaluation result from NICT.
It is announced that the project will get financial support more 2 years from NICT.
Announcement from NICT (in Japanese)

Yamanaka Lab. will exhibit at the Keio-Technomall2013 at Tokyo International Forum on Dec. 7th.

The research topics we will exhibit this year are the followings.
「The MiDORi
– self-organized energy-saving network -」
「E3-DCN
-Energy Efficient and Enhanced-type Data Centric Network-」
「EVNO
-Energy Virtual Network Operator-」
「Elastic Photonic Aggregation Network Technology」
｢OpenFlow based Energy-Efficient network｣

You can see the location of these booths(18-21,71) and research outlines here.

Please come and see us!