{"title":"Designing Configurable Publish-Subscribe Scheme for Decentralised Overlay Networks","authors":"L. Chan, S. Karunasekera","doi":"10.1109/AINA.2007.56","DOIUrl":"https://doi.org/10.1109/AINA.2007.56","url":null,"abstract":"The decoupled nature of publish-subscribe (pub-sub) paradigm has gained popularity as a communication mechanism for distributed systems developed for decentralised networks. However, the lack of configurable and measurable properties in current decentralised pub-sub services introduces the issue of limited customisation. This shortcoming leads to the inability to meet different requirements needed by various application domains. In this paper, we address the challenge of supporting configurable properties in an overlay-oriented pub-sub scheme for decentralised networks. We use the measurable feature produced by the configurable properties to develop a mathematical model to analyse the behaviour of the pub-sub scheme with respect to important input factors such as distributions of subscriptions and events. These input factors ultimately affect the widely regarded performance requirement. Finally, we demonstrate the feasibility of our scheme and the validity of the derived model with a series of simulations.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129477704","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}
A. Bozzon, M. Brambilla, P. Fraternali, Paolo Speroni, G. T. Carughi
{"title":"Applying Web-based Networking Protocols and Software Architectures for providing adaptivity, personalization, and remotization features to Industrial Human Machine Interface Applications","authors":"A. Bozzon, M. Brambilla, P. Fraternali, Paolo Speroni, G. T. Carughi","doi":"10.1109/AINA.2007.39","DOIUrl":"https://doi.org/10.1109/AINA.2007.39","url":null,"abstract":"This paper proposes an innovative use of a mix of networking standards and software implementation technologies for the design of industrial human machine interface (HMI) systems. We describe how well known technologies and practices can be transferred from internet-based architectures to embedded systems. Several advanced features can be achieved thanks to this architecture, such as application adaptivity, interface personalization, control remotization, and multi-channel notification.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130019925","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}
{"title":"Topic: Designing the Future Internet","authors":"A. Durresi","doi":"10.1109/AINA.2007.137","DOIUrl":"https://doi.org/10.1109/AINA.2007.137","url":null,"abstract":"Dr. Durresi received his B.Eng., M.Eng. and Ph.D. (all summa cum laude) in Electronics and Telecommunications, in 1986, 1991 and 1993, respectively; and a Diploma of Superior Specialization in Telecommunications from La Sapienza University in Rome, Italy and Italian Telecommunications Institute.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114962492","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}
Yufeng Li, Han Qiu, Xiaozhuo Gu, Julong Lan, Jianwen Yang
{"title":"Design and Buffer Sizing of TCAM-Based Pipelined Forwarding Engines","authors":"Yufeng Li, Han Qiu, Xiaozhuo Gu, Julong Lan, Jianwen Yang","doi":"10.1109/AINA.2007.53","DOIUrl":"https://doi.org/10.1109/AINA.2007.53","url":null,"abstract":"The ever increasing line speed and the continuous growing demands of various functions support(for example QoS, multicast and security) have interact- tively made it harder for forwarding engines to process packets at line speed, and this will increasingly make the forwarding engines call for additional buffers to accommodate the burst transmission and decrease the packet loss rate. In this paper, a high-speed pipeline designed for TCAM-based forwarding engines is presented, and its buffer analysis model is also given, then, the buffer requirement of the forwarding engine is analyzed under two conditions: the forwarding rate is not less than and less than the input rate. Our analysis results and experiments both show that, the proposed forwarding pipeline is of high performance, and just one pipeline can easily deal with the data transfer rate of 30 Gb/s or even higher; the pipelined forwarding engine only need to buffer a several packets, then the loss rate will be an acceptable value or even zero, further increasing the buffer size will have little effect on reducing the loss rate.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133671497","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}
{"title":"On the Design of an Efficient Architecture for Supporting Large Crowds of Autonomous Agents","authors":"M. Lozano, P. Morillo, J. Orduña, V. Cavero","doi":"10.1109/AINA.2007.101","DOIUrl":"https://doi.org/10.1109/AINA.2007.101","url":null,"abstract":"Crowd simulations require both rendering visually plausible images and managing the behavior of autonomous agents. Therefore, these applications need an efficient design that allow them to simultaneously tackle these two requirements. Although several proposals have focused on the software architectures for these systems, no proposals have focused on the computer systems supporting them. In this paper, we analyze the computer architectures used in the literature to support virtual environments. Also, we propose a distributed computer architecture efficient enough to support simulations of thousand of autonomous agents. This proposal consists of a cluster of computers in order to improve flexibility and robustness, as well as a hierarchical software architecture that efficiently provides consistency. Performance evaluation results show that the trade-off between flexibility and consistency allows to efficiently manage thousands of autonomous agents.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"2001 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133030683","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}
Shoichi Nakamura, Hirokazu Shirai, H. Kaminaga, Y. Miyadera
{"title":"A Visual Bookmark Sharing System Considering Retrieval Scenes and Its Evaluations","authors":"Shoichi Nakamura, Hirokazu Shirai, H. Kaminaga, Y. Miyadera","doi":"10.1109/AINA.2007.26","DOIUrl":"https://doi.org/10.1109/AINA.2007.26","url":null,"abstract":"Bookmark sharing can increase the efficiencies of information retrieval and cooperative intelligent activities based on it. However, a crude sharing style that makes no distinction between retrieval purposes will hinder effective bookmark sharing and any information retrieval based on it. To prevent this problem, we have developed a support system for bookmark sharing which considers differences in search purposes and user groups. We also provide a method for visualizing the relationships among bookmarks. This paper mainly describes the system execution examples and experiments using prototype.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116555898","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}
{"title":"Traffic Flow based EDCF for QoS Enhancement in IEEE 802.11e Wireless LAN","authors":"Eunjun Choi, Wonjun Lee, T. Shih","doi":"10.1109/AINA.2007.139","DOIUrl":"https://doi.org/10.1109/AINA.2007.139","url":null,"abstract":"This paper describes a dynamic service differentiation scheme based on access category (AC)'s traffic flow for QoS provisioning in the IEEE 802.11 wireless local area network (WLAN). The proposed scheme adjusts contention window sizes by considering the contributions of each traffic instead of each node on the network contention rate. There have been research efforts to improve IEEE 802.11 EDCF. However, these approaches have some limitations in that they do not consider that how much each AC traffic affects the packet collision rate. We propose a novel scheme based on traffic flow named T-EDCF. The difference between T-EDCF and existing schemes is that the former considers traffic categories' effects on the throughput, jitter, and delay of a node. When there are a lot of flow and nodes in WLAN, T- EDCF outperforms other schemes proposed for enhancing the IEEE 802. lie.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124745620","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}
Yan Zhang, L. Yang, Jianhua Ma, Junge Zheng, Mingtuo Zhou, S. Xiao
{"title":"Quantitative Analysis of Location Management and QoS in Wireless Mobile Networks","authors":"Yan Zhang, L. Yang, Jianhua Ma, Junge Zheng, Mingtuo Zhou, S. Xiao","doi":"10.1109/AINA.2007.118","DOIUrl":"https://doi.org/10.1109/AINA.2007.118","url":null,"abstract":"As a fundamental component in wireless networks, location management consists of two operations: location update and paging. These two supplementary operations enable the mobile user ubiquitous mobility. However, in case of failed location update, a significant consequence is the obsolete location identity in the network databases and thereafter the incapability in establishing the valid route for the potential call connection, which will seriously degrade the network quality-of-service (QoS). This issue is not theoretically studied in the literature. In this paper, we perform a quantitative analysis of the location management effect on QoS in the wireless networks. The metrics call blocking probability and the average number of blocked calls are introduced to reflect the QoS. For the sake of general applicability, the performance metrics are formulated with the relaxed tele-traffic parameters. Namely, the call inter-arrival time, cell residence time, location area residence time and location update inter-arrival time follow a general probability density function. The formulae are additionally specified in the static and several dynamic location management mechanisms. Numerical examples are presented to show the interaction between the performance metrics and location management schemes. The discussions on the sensitivity of tele-parameters are also given.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127802989","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}
{"title":"Role-based Concurrency Control in a Subject- and Purpose-Oriented (SPO) View","authors":"T. Enokido, Valbona Barolli, M. Takizawa","doi":"10.1109/AINA.2007.124","DOIUrl":"https://doi.org/10.1109/AINA.2007.124","url":null,"abstract":"In information systems, processes have to be scheduled to share a limited amount of resource objects like memory and CPU with other processes. In database systems, conflicting access requests from multiple transactions have to be serialized. There are various ways to order multiple conflicting access requests like FIFO and timestamp ordering (TO) schemes. For example, an object is exclusively used by each transaction in locking protocols. In scheduling algorithms, highly prioritized processes are performed before lower ones. Thus, it is critical to discuss which access request should be performed before another. In this paper, we postulate that an access request issued by a more significant subject for a more significant purpose should be performed prior to less significant access requests. In the role-based access control model, a role is a set of access rights, which shows a job function in an enterprise. A subject is first granted a role from another subject. Only a subject granted a role can issue an access request in the role. In this paper, the significancy of subject and purpose is defined in terms of roles and authorization relations. Here, there are two views, subject-oriented (SO) and purpose-oriented (PO) views to order transactions. A method issued by a subject with more significant roles should be performed before another conflicting method issued by a less significant subject in the SO view. A transaction issued by a subject is associated with a subset of roles granted to the subject, which is named purpose. A method with a more significant purpose should be performed before another method in the PO view. In this paper, we discuss how to combine the SO and PO views into a unique SPO view to order conflicting access requests.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129766894","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}
{"title":"Multiprocessor Simulator System Based on Multi-way Cluster Using Double-buffered Model","authors":"Arata Shinozaki, M. Shima, M. Guo, Mitsunori Kubo","doi":"10.1109/AINA.2007.96","DOIUrl":"https://doi.org/10.1109/AINA.2007.96","url":null,"abstract":"In the ubiquitous era, it is necessary to research the architectures of multiprocessor system with high performance and low power consumption. A simulator developed in high level language is useful because of its easily changeable architecture, which includes application-specific instruction sets and functions. In this research, the basic framework for multiprocessor simulator system was constructed based on a multi- way cluster. Furthermore, this paper proposes and implements a double-buffered communication model to improve communication speed keeping independence from each processor model on the system. This model shows over 50% system performance improvement rate compared with the basic framework integrated with the single-buffered model. As the conclusion, the improved simulator system is suitable for the research of heterogeneous multiprocessor system.","PeriodicalId":361109,"journal":{"name":"21st International Conference on Advanced Information Networking and Applications (AINA '07)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122927574","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}