Mr. Okazaki, Mr. Yamashita, Mr. Ashizawa and Mr. Susa made presentation at Technical Committee on Photonic Network.
The presentation papers are as follows.
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Title: “Service Parts Connection based on Dynamic Lightpath Establishment in uGrid”
Authors: Yusuke Okazaki, Yuki Susa, Ryota Usui, Yutaka Arakawa, Satoru Okamoto, and Naoaki Yamanaka
Abstract: 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.
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Title: “Distributed Wavelength Allocation Scheme Considering Four Wave Mixing in All Optical Network”
Authors: Hirofumi Yamashita, Kazuki Irie, Yutaka Arakawa, Satoru Okamoto, and
Naoaki Yamanaka
Abstract: 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.
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Title: Parameter Design and Dynamic Slot Assignment considering TCP Throughput on Active Optical Access Network
Authors: Kunitaka Ashizawa, Kazumasa Tokuhashi, Kou Kikuta, Daisuke Ishii, Yutaka Arakawa, Satoru Okamoto and Naoaki Yamanaka
Abstract: We study a novel optical access network with active optical switches as next generation access network, called Active Optical Network (ActiON). In ActiON, a data is transmitted by fixed-length time，called ”slot”. So, in this paper, we focus on the parameter design of number of slots and transmission cycle considering TCP throughput,and dynamic slot assignment by periodically changing the number of allocation slots.
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Title:A Proposal for A uGrid Multi-Service Video Delivery Network Considers Security
Authors: Yuki Susa, Yusuke Okazaki, Ryota Usui, Yutaka Arakawa, Satoru Okamoto, Naoaki Yamanaka
Abstract: With the advance of ubiquitous society including IPv6, we assume the world that 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.