2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities最新文献

{"title":"CREATE-NET's Real-Life Service-Oriented Testbed in Trento","authors":"Roberto Grasso, D. Mandato, O. Mayora-Ibarra, E. Salvadori, C. Szabó, Luigi Telesca, H. Woesner","doi":"10.1109/TRIDENTCOM.2007.4444665","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444665","url":null,"abstract":"CREATE-NET's testbed is an open, service-oriented environment, implemented on a real-life city-wide communication infrastructure deployed in the city of Trento. Target user groups and users are integral part of the experimentation and take part in validation of the services implemented in the testbed. It spans the range of the most advanced communications technologies, starting from a wide area DWDM optical backbone, WiMAX & Wi-Fi wireless distribution/access networks, all the way to sensor networks and technologies for smart spaces. The testbed also serves as a model of a community network, planned for deployment in the Province of Trento.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","volume":"16 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":"127346489","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":"Vendetta - A Tool for Flexible Monitoring and Management of Distributed Testbeds","authors":"Olof Rensfelt, Lars-Åke Larzon, Sven Westergren","doi":"10.1109/TRIDENTCOM.2007.4444683","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444683","url":null,"abstract":"Writing a powerful tool for monitoring and management of a testbed can have a positive effect when doing research on the testbed. Despite this, many testbeds use primitive scripts for data collection, code updates and other basic tasks. We introduce Vendetta, a flexible and powerful platform for monitoring and management of distributed testbeds. It is designed to be relatively easy to adapt to different testbeds by having a modular design, being written in Java and defining much of the testbed-specific behavior in two configuration files. The novelty in comparison with similar tools is the integration of a GUI supporting 30 graphics, flexible monitoring and management into one single tool. We will present the general design of Vendetta and then illustrate how it has been used for monitoring and management of an experimental DHT deployment running on PlanetLab. Experiences from this combination shows that usage of a tool like Vendetta simplifies testbed management and makes it easier to discover and analyze different phenomena.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","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":"121974330","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":"Framework for characterizing hardware deployed in Wireless Mesh Networking Testbeds","authors":"Marc Portoles-Comeras, M. Requena-Esteso, J. Mangues‐Bafalluy","doi":"10.1109/TRIDENTCOM.2007.4444730","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444730","url":null,"abstract":"Experimental systems introduce a variable in the analyzed system which is not present in theoretical ones, i.e. real equipment from different vendors. Given a certain standard, different vendors might take different design choices depending on the target equipment being devised. As a consequence, though this equipment fulfills the same functionality, it shows different behavior in equivalent scenarios due to parameters such as power constraints, degree of standard compliance, or CPU processing power. In this paper, we identify and explain the implications that these parameters have on the performance of wireless equipment, with particular emphasis on building a wireless mesh networking testbed. Moreover, this paper outlines techniques and recommended practices to use when selecting equipment in order to assess its behavior. It presents also practical quantitative results illustrating the type of results obtained and the validity of the techniques and procedures proposed.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","volume":"1 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":"130490342","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":"StarBED2: Large-scale, Realistic and Real-time Testbed for Ubiquitous Networks","authors":"J. Nakata, S. Uda, T. Miyachi, K. Masui, R. Beuran, Yasuo Tan, K. Chinen, Y. Shinoda","doi":"10.1109/TRIDENTCOM.2007.4444702","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444702","url":null,"abstract":"Nowadays many new technologies are being developed and introduced for Internet, home networks, and sensor networks. The new technologies must be evaluated in detail before deployment. However the above mentioned networks have a large number of nodes and a complicated topology. Therefore it is difficult to analyze such networks using typical network simulators. Accordingly testbeds for these networks must be able to perform accurately emulation of large-scale networks with a complex topology. In order to implement a testbed that satisfies these requirements, we developed a large-scale, realistic and real-time network testbed, StarBED, using hundreds of PCs, and switched networks. We are now implementing StarBED2, which expands StarBED so as to be suitable for emulating ubiquitous networks by introducing several new concepts. In this paper we describe first the present StarBED, its design concept, overall architecture, implemented functionalities, and some of the experiments we performed. Then we introduce StarBED2, its design policy, architecture, and additional components.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","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":"129192725","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":"An Implementation of Multiple Home Agents Mechanism in Mobile IPv6","authors":"Hongbo Shi, Shigeki Goto","doi":"10.1109/TRIDENTCOM.2007.4444707","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444707","url":null,"abstract":"This paper proposes a new mechanism of multiple home agents to realize a stable connection in Mobile IPv6. The new mechanism has multiple home agents instead of only one home agent in the existing specification of Mobile IPv6. In the existing Mobile IPv6 protocol, it takes time to find a new home agent and make it work. A mobile node cannot find that the home agent is down until the mobile node needs to register or update the binding information at the home agent. When a home agent is down and a mobile node is away from home and on a foreign link, the mobile node cannot receive any packets from a newly joining correspondent node. The new mechanism provides multiple home agents with a new binding update message and a new ICMP home agent unreachable error message. The new binding update procedure realizes a fast home agent recovery. This paper describes the result of an experiment which shows how a mobile node works with multiple home agents. We also compare the fast home agent recovery process with existing methods.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","volume":"4 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":"130637606","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":"SPHERE - A Simulation Platform for Heterogeneous Wireless Systems","authors":"J. Gozálvez, David Martín-Sacristán, M. C. Lucas-Estañ, J. Monserrat, Juan Jesús González Delicado, D. G. Serrano, M. Marhuenda","doi":"10.1109/TRIDENTCOM.2007.4444672","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444672","url":null,"abstract":"This paper presents SPHERE, a Simulation Platform for HEterogeneous wiREIess systems, and describes its motivation, methodology and implementation approach. This advanced system level simulation platform emulates simultaneously the transmission of GPRS, EDGE Multi-slot, HSDPA and WLAN at the packet level, which allows conducting novel investigations on common radio resource management for beyond 3G systems or on the optimization of radio resource management techniques. This paper presents the simulation platform, validates it and introduces its research potential.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","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":"114666854","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":"The TATPA Testbed; A Testbed for Advanced Transport Protocols and Architecture performance evaluation on wireless channels","authors":"C. Caini, R. Firrincieli, D. Lacamera, Stefano Tamagnini, D. Tiraferri","doi":"10.1109/TRIDENTCOM.2007.4444725","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444725","url":null,"abstract":"The paper describes the Testbed for Advanced Transport Protocols and Architecture (TATPA) developed by the University of Bologna, inside the SatNEx (Satellite Network of Excellence) framework. The aim is to provide partners, and in general the scientific community, with a powerful and flexible emulation tool to evaluate new proposal at transport layer (both protocols and architectures). In accordance with our research interests, the testbed is focused on performance evaluation on heterogeneous networks that include satellite links. The testbed architecture is based on a cluster of Linux PCs and, in addition to some widely adopted networking tools (NistNet, Ipcrf), it also exploits software packages specifically developed by the authors (Multi TCP, PEPsal, released under GNU license). The testbed is controlled by remote through a web interface, which provides both users and administrators with a ubiquitous easy access to the testbed features. A dedicated PC, acting as testbed controller, hosts the web server and the control engine, developed in PHP and bash and based on a MySQL database. In the paper, a particular attention is devoted to the description of the innovative design and the many advanced features of this controller. An example of use, seen from the final user point of view, completes the description of the TATPA testbed.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","volume":"13 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":"125986169","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":"Daidalos Framework for Successful Testbed Integration","authors":"M. P. D. Leon, Frances Cleary Grant, Marta G. Moreno, Antonio Romero Vicente, Mark Roddy, Czeslaw Jedrzejek","doi":"10.1109/TRIDENTCOM.2007.4444682","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444682","url":null,"abstract":"The Daidalos Testbed integration framework required detailed planning and implementation, constantly adapting to the demanding changes of a research project as it advances from development phase to integration phase. This paper describes the various integration and validation efforts required to deploy an operational Daidalos Testbed infrastructure, demonstrating the effort required to achieve a successful overall integration process. With such a large scale project as Daidalos with a consortium of 49 partners, the Testbed deployment, operation and management was indeed an immense task having to create and enforce lest bed processes suitable for the efficient and effective operation of the Daidalos system during integration and validation.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","volume":"163 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":"127298558","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":"Efficient Packet Error Rate Estimation in Wireless Networks","authors":"B. Han, Seungjoon Lee","doi":"10.1109/TRIDENTCOM.2007.4444710","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444710","url":null,"abstract":"Wireless links exhibit diverse link quality (e.g., in terms of error rate, latency, and required transmit power), and inferring the link cost correctly is crucial to finding an efficient path in multihop wireless networks. In this paper, we consider the problem of estimating packet error rate (PER) in wireless networks. Most existing schemes use observed error rates of probe messages as representative packet error rates for wireless links. However, since typical data packets are larger than probe messages, the actual data packet error rate is often higher than the observed error rate of probe messages. Instead of directly using measurement statistics, our approach is to analyze them to determine the link characteristics and estimate the link quality (e.g., PER) based on the understanding. We describe a simple estimation scheme based on a well-known two-state Markov bit error model for wireless channels. We perform various experiments on two wireless testbeds and show the proposed scheme can successfully estimate PERs for packets of arbitrary size in diverse environments. When compared to other alternatives, the proposed estimation scheme is accurate and incurs small control overhead. We also integrate the scheme into an existing routing scheme. Our experiment results show that the combined scheme can reduce the transmission overhead by 60% when compared to a naive estimation strategy based on one type of probe messages.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","volume":"35 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":"122309834","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":"An Open Wireless Mesh Testbed Architecture with Data Collection and Software Distribution Platform","authors":"S. Shrestha, Jinsung Lee, Anseok Lee, Kyunghan Lee, Junhee Lee, S. Chong","doi":"10.1109/TRIDENTCOM.2007.4444728","DOIUrl":"https://doi.org/10.1109/TRIDENTCOM.2007.4444728","url":null,"abstract":"A Wireless Mesh Network (WMN) is a fast growing network, which is now a popular technology for providing wireless Internet connection to industry as well as community. A WMN is a collection of nodes (usually a computer with one or mint: wireless Network Interface Cards (NICs)) that are connected to one another with single or multiple hop ad hoc links forming a mesh backbone network. Ad hoc links are popular in mesh connectivity as they are self-configuring and self-healing. In this paper, we discuss WMN design and deployment issues with reference to our WiSEMesh testbed. WiSEMesh has 56 nodes deployed in the campus area providing internet connection for over 1000 users. Each node consists of a small form factor computer with three wireless NICs. We developed the WiSEMesh node software stack that contains Unix based operating system, wireless NIC drivers, tools such as DHCP server, NAT etc. WiSEMesh has properties like scalability, open source operating software, heterogeneous hardware support, high performance, globally reachable, and easy to configure network. Hence, it can spread faster as a community wireless network and also provide a flexible platform for testing communication network layers. We also address design issues of a Network Management System (NMS) that can be implemented in any wireless network. Our NMS named WiVi provides platform for software distribution and network configuration with an elaborate data collection and storage facilities. For a large and scalable network like WiSEMesh, a massive database needs to be designed. One of the WiVi design objectives is to provide a robust, flexible and scalable database. WiVi achieves database design goals by implementing a concept \"network in database\" where network is logically divided into hierarchy of hardware components and each component is treated as an object in the database. The \"network in database\" implementation guarantees data collection and storage flexibility. By implementing the NMS software distribution platform and the hardware independent WiSEMesh node software stack, our testbed is confirmed to achieve scalability.","PeriodicalId":397239,"journal":{"name":"2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities","volume":"241 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":"116148534","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}