Proceedings 15th International Conference on Information Networking最新文献_第9页

PatchODMRP: an ad-hoc multicast routing protocol PatchODMRP: ad-hoc组播路由协议

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905505

Meejeong Lee, Y. Kim

{"title":"PatchODMRP: an ad-hoc multicast routing protocol","authors":"Meejeong Lee, Y. Kim","doi":"10.1109/ICOIN.2001.905505","DOIUrl":"https://doi.org/10.1109/ICOIN.2001.905505","url":null,"abstract":"We propose an ad-hoc multicast routing protocol, referred to as PatchODMRP. PatchODMRP extends the ODMRP (on-demand multicast routing protocol), which is a mesh-based multicast routing protocol proposed for ad-hoc networks. In ODMRP, the nodes that are on the shortest paths between the multicast group members are selected as forwarding group (FG) nodes, and form a forwarding mesh for the multicast group. The ODMRP reconfigures the forwarding mesh periodically to adapt it to the node movements. When the number of sources in the multicast group is small, usually the forwarding mesh is formed sparsely and it can be very vulnerable to mobility. In this case, very frequent mesh reconfigurations are required in ODMRP, resulting in a large control overhead. To deal with this problem in a more efficient way, PatchODMRP deploys a local patching scheme instead of having very frequent mesh reconfigurations. In PatchODMRP, each FG node keeps checking if there is a symptom of mesh separation around itself. When an FG node finds such a symptom, it tries to patch itself to the mesh with local flooding of control messages. Through a course of simulation experiments, the performance of PatchODMRP is compared to the performance of ODMRP. The simulation results show that PatchODMRP improves the data delivery ratio, and reduces the control overheads. It has also been shown that the performance gain is larger when the degree of node mobility is bigger.","PeriodicalId":332734,"journal":{"name":"Proceedings 15th International Conference on Information Networking","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128819507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 60

Development of a PDA based idea collecting system and its application to an idea generation consistent support system 基于PDA的创意收集系统的开发及其在创意生成一致性支持系统中的应用

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905558

T. Yoshino, J. Munemori, K. Yunokuchi

引用次数: 3

Component based video communication tool for collaborative virtual environment 基于组件的协同虚拟环境视频通信工具

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905454

H. Sakamoto, Y. Okada, T. Shimokawa, K. Ushijima

{"title":"Component based video communication tool for collaborative virtual environment","authors":"H. Sakamoto, Y. Okada, T. Shimokawa, K. Ushijima","doi":"10.1109/ICOIN.2001.905454","DOIUrl":"https://doi.org/10.1109/ICOIN.2001.905454","url":null,"abstract":"This paper treats a component based video communication tool for collaborative virtual environments. Especially the authors propose a new concept and its realization mechanisms for easy construction of distributed 3D graphics applications using video communications, e.g., network meeting, conference, and training in a 3D virtual space. If a software component is represented as a visible, manually operable object, users can make its copy and transfer it to another computer easily and rapidly. If a facility that manages video/audio data is realized as such a object, even end-users can easily and rapidly build networked video communication environments through the copy-and-transfer operation. To clarify an availability of this concept, the authors employ the IntelligentBox system as a research platform. The authors introduced a video communication facility as a software component into the IntelligentBox system. IntelligentBox has provided a network communication facility as a software component. Using these components, it will be possible to build collaborative virtual environments, which support video communications, through copy-and-transfer operations.","PeriodicalId":332734,"journal":{"name":"Proceedings 15th International Conference on Information Networking","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122110508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A novel hierarchical cache architecture for WWW servers 一种新的WWW服务器分层缓存体系结构

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905618

T. Sheu, Chieh-Hsing Yang

{"title":"A novel hierarchical cache architecture for WWW servers","authors":"T. Sheu, Chieh-Hsing Yang","doi":"10.1109/ICOIN.2001.905618","DOIUrl":"https://doi.org/10.1109/ICOIN.2001.905618","url":null,"abstract":"This paper presents a novel hierarchical cache architecture to achieve efficient Web access. The cache servers being used today have encountered the problems of lack of efficient collaboration among different levels in the hierarchy. In other words, the highest level of the hierarchical cache servers may easily become the performance bottleneck, which in turn slows down the entire cache system. In the proposed new cache design, we apply an inclusive and exclusive relationship to modify the ICP (Internet cache protocol) and use the recursive concept to build a hierarchical cache architecture to avoid the unnecessary information query existing in current ICP. This implies that the lowest level can fetch the data from the original Web server directly and perform the update procedures recursively to its upper levels. The up-side-down traffic flow, referred to as reverse traffic flow in this paper, can substantially release the server load of the upper levels in the hierarchy. For the purpose of evaluation and comparison, we derive mathematical equations by analyzing the operation procedures step by step. The analytical results have shown that the server load of the highest level in the hierarchy can be reduced almost 50% under the worst-case assumption. Although the lower levels may slightly increase their workload, it does significantly decrease the average object searching time by balancing the loads among different levels.","PeriodicalId":332734,"journal":{"name":"Proceedings 15th International Conference on Information Networking","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129070991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Collaborative multimedia middleware architecture and advanced Internet call center 协同多媒体中间件体系结构和先进的互联网呼叫中心

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905435

Doohyun Kim, Seung-Min Park, Jiyong Kim, Dongmyung Sul, Kyunghee Lee

引用次数: 3

An adaptive MAC protocol for satellite ATM 卫星ATM的自适应MAC协议

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905342

Kuo-Hao Li, Chienhua Chen

引用次数: 5

The rigorous evaluation of Enterprise Java Bean technology 对企业Java Bean技术进行了严格的评估

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905336

S. Ran, P. Brebner, I. Gorton

引用次数: 17

The flying object for an open distributed environment 飞行对象为一个开放的分布式环境

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905334

K. Oda, Shin'ichi Tazuneki, Takaichi Yoshida

{"title":"The flying object for an open distributed environment","authors":"K. Oda, Shin'ichi Tazuneki, Takaichi Yoshida","doi":"10.1109/ICOIN.2001.905334","DOIUrl":"https://doi.org/10.1109/ICOIN.2001.905334","url":null,"abstract":"We propose the flying object that adapts itself to the environment by means of a dynamic behavior change mechanism. The flying object is a user-defined, first-class and abstract entity. Such properties provide independency and transparency. The flying object model establishes a unique decomposition of the flying object. In this model, the flying object consists of four objects: the delegater that encapsulates the implementation, the message handler that interprets the messages, the event handler that provides adaptation strategies and the context object that holds a state beyond the adaptation. The ability of accommodation, the openness, is one of the great contributions of this model because many functions such as object migration, load balancing, distributed transaction management, the communication protocols and even adaptation strategies can be introduced by the message handler and the event handler as a plug-in module. Furthermore, a source code translation technique is introduced for automatic decomposition of the flying object as a replacement for the virtual machine customizations or low-level programming. The delegater and the context object are instantiated from the same translated class to minimize maintenance costs of classes as a result of an automatic translation. Therefore, the system organized by the flying object is best suited for the open distributed environment.","PeriodicalId":332734,"journal":{"name":"Proceedings 15th International Conference on Information Networking","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133143330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

An experimental evaluation of the total cost of NTP topology NTP拓扑总成本的实验评估

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905434

T. Nakashima, S. Ihara

{"title":"An experimental evaluation of the total cost of NTP topology","authors":"T. Nakashima, S. Ihara","doi":"10.1109/ICOIN.2001.905434","DOIUrl":"https://doi.org/10.1109/ICOIN.2001.905434","url":null,"abstract":"To improve the quality of the Internet, the behavior of Internet is evaluated by active or passive measurements. For a one directional measurement method, it is assumed that the network time protocol (NTP) server can maintain the exact absolute time. But the relative time of the NTP server depends on the NTP server-client topology and the interval time of peering hosts. In this research we define the offset time of the peering hosts, propose the evaluation model of the NTP based network and define the total cost of the NTP topology. We measure the offset time between two NTP servers by experiments in various network structures and extract the parameters that cause the offset time drift. From the results of a few experiments, we discovered that (1) a large number of hosts under 100 does not affect the accuracy of NTP server, (2) the processing time of the NTP server depends on synchronous processing, (3) the difference between the sending and receiving packet delay affects the real offset value, (4) if there is no NTP server, there is a 0.028 (millisecond/second) drift, and (5) there are reasons for the offset time drift in peer host synchronization. From these results, we can get some of the characteristics of the NTP evaluation model.","PeriodicalId":332734,"journal":{"name":"Proceedings 15th International Conference on Information Networking","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130867178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

A methodology for redesigning the collaborative processes with undesirable multi-way task dependency 一种重新设计具有不期望的多路任务依赖的协作过程的方法

Proceedings 15th International Conference on Information Networking Pub Date : 2001-01-31 DOI: 10.1109/ICOIN.2001.905568

Farhad Daneshgar

{"title":"A methodology for redesigning the collaborative processes with undesirable multi-way task dependency","authors":"Farhad Daneshgar","doi":"10.1109/ICOIN.2001.905568","DOIUrl":"https://doi.org/10.1109/ICOIN.2001.905568","url":null,"abstract":"As a first effort in analysis, design and implementation of a specialised collaborative database that maintains records of collaborative structures for business applications, an innovative methodology for planning, analysis and design of such databases is introduced. This methodology was based on an awareness model in which awareness is defined in terms of collaborative semantic concepts such as actors, roles, and artefacts. Also, a LotusNOTES-based software called AWT (aware-ware template) was introduced in that paper for implementing the methodology of that study. According to that methodology awareness levels of the actors can be assessed, raised and maintained at desired/required levels. One practical limitation of that methodology which creates inefficiency and unnecessary overhead problems was that each simple task must participate in one, and only one collaborative task. In other words, during the design phase of the collaborative process, no simple task could be linked to more than one other simple task. The question in this paper is that how to apply AWT software to a collaborative process where a simple task already is designed to be related to more than one other simple task without loss of efficiency and clarity. This paper provides a guideline for redesigning such collaborative process in a way that the requirements of the AWT are met without any arbitration or loss of originality and integrity in the collaborative process. To further, clarify the technical issues involved in this enhanced methodology a case study representing a collaborative process called 'cohort of students' is used.","PeriodicalId":332734,"journal":{"name":"Proceedings 15th International Conference on Information Networking","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114280192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1