Summary of Research Project Results under JSPS FY2003
"Research for the Future Program"

1.Research Institution Kyoto University
2.Research Area Physical and Engineering Sciences
3.Research Field Intelligent and Dynamic Inter-networking
4.Term of Project FY 1999 - FY 2003
5.Project Number 99P01301
6.Title of Project Self-organizing Network Infrastructure

7.Project Leader
Name Institution,Department Title of Position
Yasuo, Okabe Kyoto University, Academic Center for Computing and Media Studies Professor

8.Core Members
Names Institution,Department Title of Position
Motonori, Nakamura Kyoto University , Academic Center for Computing and Media Studies Associate Professor
Koji ,Okamura Kyushu University, Computing and Communications Center Associate Professor

9.Summary of Research Results
PPQ (Policed Priority Queuing) has been proposed as a framework for QoS (Quality of Service) guarantee at the network layer, and a router architecture which implements PPQ has been shown based on multi-stage token backet algorithm. A prototype of a hardware router implementation was designed as a joint work with Furukawa Electrics, and routers based on this are now shipped as commercial products.
 A modification of TCP, the transport layer protocol, is proposed. In addition to the ordinally congestion control, the packet size is also dynamically changed with self-organizing mechanism. This improvement is drastically effective on IP over ATM networks.
 A QoS unicast routing protocol HQLIP and a QoS multicast routing and resource reservation protocol SRSVP are proposed and implemented. These are already deployed on some commercial router products, e.g., Furukawa Electrics Fitel-G series. A suite of transport layer protocols for reliable multicast has been proposed and has been implemented as a general-purpose middleware.
 A protocol for "zeroconf" autoconfiguration of IPv6 addresses is designed so that IPv6 can be used in a environment without any administrator like home network. A high-speed authentication and handover protocol is also developed for IPv6 mobile environment.
 Theoretical analysis of the transient-loop problem on dynamic self-organizing routing is done and an algorithm for avoiding such situation is proposed. An algorithm for computing backup routing tables for shortest-path routing is presented.
 In order to assure the effectiveness and performance of the proposed methods, prototype software is implemented and evaluated, e.g., the multimedia streaming suite EMON system, a high-density video transmission system, an Internet broadcasting system, an autoconfiguration system of home appliances. Some of them are evaluated in real environment, like, the TIDE project, a trans-Pacific distance learning between Kyoto University and UCLA, and the MIAKO.NET public wireless Internet service project.Okayama University, The Graduate School of Natural Science and Technology

10.Key Words
(1)ubiquitous networking (2)quality-aware Internet (3)mobile networking
(4)reliable multicast (5)routing protocol (6)self-organizing protocol
(7)home networking (8)multimedia streaming (9)network auto-configuration