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.