NOMS 2008 - 2008 IEEE Network Operations and Management Symposium最新文献

{"title":"Neighbor cell relation list and measured cell identity management in LTE","authors":"M. Amirijoo, P. Frenger, F. Gunnarsson, Harald Kallin, Johan Moe, K. Zetterberg","doi":"10.1109/NOMS.2008.4575129","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575129","url":null,"abstract":"Radio network management simplification concerns to some extent the removal, not the simplification, of tasks. In this paper we present an approach for automatic network management in 3G long term evolution (LTE), namely, methods for automatic configuration of locally-unique physical cell identities and neighbor cell relation lists. We show that these issues can be removed from the list of planning tasks and completely replaced by autonomous algorithms. These algorithms make use of mobile measurements to detect local cell identity conflicts, resolve them, and to update the neighbor cell relation lists in the cells. The performance of the approach is determined using simulations of realistically deployed macro networks. The simulations illustrate the ability of the algorithms to resolve local cell identity conflicts. In particular, the algorithms are capable of both accommodating new cells and handling a worst case scenario where all cells are initiated with the same local cell identities and where neighbor cell relation lists are empty. The contributions in this paper are meant to aid operators by allowing them to replace time consuming and costly tasks with automatic mechanisms, thus, reducing operational expenditure.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128281842","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":"Enterprise mashups and Web 2.0 for management","authors":"H. Jamjoom, Nikos Anerousis","doi":"10.1109/NOMS.2008.4575106","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575106","url":null,"abstract":"Mashups are an exciting genre of interactive Web applications that draw upon content retrieved from external data sources to create entirely new and innovative services. They are a hallmark of the second generation of Web applications informally known as Web 2.0. This tutorial explores what it means to be a mashup, the different classes of popular mashups constructed today, and the enabling technologies that mashup developers leverage to create their applications. Of particular interest are the many opportunities that mashup technology offers for distributed systems management. This includes rapid prototyping of management interfaces, integration with external data sources and services such as geographical mapping, and the use of community knowledge and social networks to perform management tasks. Finally, we will explore many of the emerging technical and social challenges that mashup developers face. research focus includes technologies and algorithms for management of large distributed infrastructures, including integration, problem determination, and automation. He has been leading several research projects where mashup technologies have been utilized to accelerate the deployment of management solutions. He received his Ph.D. in Computer Science from The University of Michigan, where he was working on QoS architectures and the integration of controls in networks and operating systems to manage Internet services. Prior to that, he earned a B. Since 1990, Nikos has had a distinguished career as an enterpreneur, innovator, manager and technology executive. He is currently the manager of the Services Engineering Research department at IBM, where he works on the next generation of technologies and innovations for the services economy. Prior to joining IBM in 2003, he was the co-founder and Chief Technology Officer of Voicemate, a venture-backed startup company that pioneered voice authoring and publishing technology for the financial markets. He started his professional career at AT&T Bell Laboratories (subsequently AT&T Research) as a Senior Member of the Technical Staff where he worked on Internet technologies, services, network and systems management. Between 1998 and 2000 he was also an adjuct assistant professor at the department of Electrical Engineering at Columbia University. Nikos has published extensively in the area of networks and systems management, has filed and was awarded over 10 patents, participates in the editorial boards of technical journals and in the organizing and program committees of several professional conferences.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128500632","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":"Spectrum management in cognitive radio networks","authors":"I. Akyildiz","doi":"10.1109/WiMob.2008.131","DOIUrl":"https://doi.org/10.1109/WiMob.2008.131","url":null,"abstract":"Today’s wireless networks are characterized by a fixed spectrum assignment policy. However, a large portion of the assigned spectrum is used sporadically and geographical variations in the utilization of assigned spectrum ranges from 15% to 85% with a high variance in time. The limited available spectrum and the inefficiency in the spectrum usage necessitate a new communication paradigm to exploit the existing wireless spectrum opportunistically. This new networking paradigm is referred to as cognitive radio networks. In this talk, the novel functionalities and current research challenges of the cognitive radio networks are explained in detail. More specifically, an overview of the cognitive radio technology is provided and the network architecture is introduced. Moreover, the cognitive network functions such as spectrum management, spectrum mobility and spectrum sharing are explained in detail. The influence of these functions on the performance of the upper layer protocols such as routing and transport are investigated. Moreover, the network management, operation and maintenance problems are highlighted and open research issues in these areas are also outlined.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128509603","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":"A resource management framework for multi-tier service delivery in autonomic virtualized environments","authors":"Xiaoyin Wang, Dong-Jun Lan, Xing Fang, Meng Ye, Ying Chen","doi":"10.1109/NOMS.2008.4575149","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575149","url":null,"abstract":"Large data centers usually host many different services on a shared computing infrastructure, for which on-demand resource management is necessary to maximize providers' revenues by meeting service quality targets at least operational cost. This paper presents a novel architecture of autonomic resource management framework based on virtualized service-oriented computing (SOC) environment. A non-linear continuous optimization problem is defined for adaptive resource allocation and a model-based approach is adopted to solve this problem. Different from traditional approaches, the analytic model we established provides probabilistic performance guarantees and considers non-steady-state behavior assisted by admission control. Results of prototype experiments demonstrate that the performance of multiple services has been greatly improved by taking advantage of fine-grained resource sharing, while incurring much lower resource usage cost. Also, differentiated service qualities could be provided to different client classes through our dynamic resource allocation scheme.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128627263","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":"A state-space approach to SLA based management","authors":"Vibhore Kumar, K. Schwan, Subu Iyer, Yuan Chen, Akhil Sahai","doi":"10.1109/NOMS.2008.4575134","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575134","url":null,"abstract":"Large complex systems (such as Enterprise systems) are often composed of several interacting, independent components. In many such systems, although the behavior of the constituent components is well characterized, the behavior that results from interaction between such components is more or less intractable; making it hard for the administrators to efficiently manage the system in conformance with the service level agreements or the SLAs. This paper presents an approach for deriving component-level objectives from system-level objectives or agreements, which if conformed to, imply conformance to the higher-level SLA. Our approach partitions the systempsilas state-space into homogeneous sub-spaces, creates micro-models for such subspaces, and then uses such micro-models to translate the higher-level objectives to component-level objectives. We have implemented a system, termed Pranaali, for evaluating our approach in realistic settings.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129669144","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 SCRUB security data sharing infrastructure","authors":"W. Yurcik, Clay Woolam, G. Hellings, L. Khan, B. Thuraisingham","doi":"10.1109/NOMS.2008.4575183","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575183","url":null,"abstract":"Sharing data between organization is important aspect of network protection that is not currently occurring since it is unsafe. This talk is about a suite of tools that can be used to \"scrub\" data (using anonymization) so it can be safely shared. SCRUB* is an infrastructure because all the tools use the same anonymization algorithms for seamless sharing independent of the data source.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123362593","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":"Load balancing scheme and implementation in multihoming mobile router","authors":"G. Lee, Byung-Chun Jeon, S. Heo, Hanlim Kim, Jongsam Jin, Seong-Choon Lee","doi":"10.1109/NOMS.2008.4575220","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575220","url":null,"abstract":"In this paper, we consider a multihoming mobile router to be connected via dual interfaces such as WLAN (Wireless LAN) and WiBro (Mobile WiMAX). In order to provide redundancy and fault tolerance, we propose load balancing scheme using policy routing in a mobile router. This scheme can improve network reliability and guarantee the continuous connectivity with desirable Quality of Service (QoS). To efficiently support multihoming and network mobility in mobile router, we provide the implementation method of our proposed scheme using netfilters tool of Linux and show the performance results in our experimental environment.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127874982","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":"UTRAN O&M support system with statistical fault identification and customizable rule sets","authors":"Yoshinori Watanabe, Y. Matsunaga, Kosei Kobayashi, T. Tonouchi, T. Igakura, S. Nakadai, Ken'ichiro Kamachi","doi":"10.1109/NOMS.2008.4575178","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575178","url":null,"abstract":"With the proliferation of mobile-network services, mobile networks have become one of the core social infrastructures and are therefore required to operate stably. Conventional mobile-network-management systems can detect and recover from faults according to previously formulated rules. However, such semi-static rules are vulnerable to large variation in quality of networks and to sudden increases in traffic, which are inherent to radio access networks. Maintenance personnel often had to perform case-by-case analyses for the vast numbers of abnormal cases and such analyses and creation of rules may have taken more time when new faults appeared. In addition, providing network elements timely is essential to maintaining network quality but it is becoming more difficult as mobile networks become larger and more complicated. To overcome these problems, we have developed a system that enhances the conventional UMTS Terrestrial Radio Access Network (UTRAN) management system of mobile networks and improves stability during network operation. In this paper, we present main features of the system and its fundamental technologies: fault detection based on statistical reliability, root-cause analysis of the fault, a rule editor easy to create and modify fault-analysis rules for maintenance personnel, and guidance on expansion based on long-term analysis of trends. We tested this system then confirmed it could reduce fault-detection errors in a conventional management system through theoretical calculations and trials in a cellular mobile network.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128103241","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":"Web services monitoring: An initial case study on the tools perspective","authors":"Aimilios Chourmouziadis, G. Pavlou","doi":"10.1109/NOMS.2008.4575224","DOIUrl":"https://doi.org/10.1109/NOMS.2008.4575224","url":null,"abstract":"Web services are an XML-based technology that has been recently viewed as capable of being used for network management. An aspect of WS-based management is monitoring. Monitoring is concerned with the collection of management data reflecting the status of a managed system. WS-based monitoring has to be performed efficiently reducing machine and network resource consumption since in such systems latency, memory and traffic overhead is increased by using XML tags to describe data .This is a big challenge that requires sophisticated mechanisms to retrieve data, such as bulk or selective retrieval to be employed. One technology suggested to address this goal is the XML Path Language. Still XPath as a filtering tool raised a lot of concerns in the NetConf mailing list, about its scalability. Based on these concerns a parser has been developed by the authors to also address data retrieval in network management. This paper is an initial scalability study on these tools to identify potential problems that will need further investigation.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122229205","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":"Autonomic QoS optimization of real-time internet audio using loss prediction and stochastic control","authors":"L. Roychoudhuri, E. Al-Shaer","doi":"10.4018/jaras.2010070105","DOIUrl":"https://doi.org/10.4018/jaras.2010070105","url":null,"abstract":"Quality of Internet audio is highly sensitive to packet loss caused by congestion in the links. Packet loss for audio is normally rectified by adding redundancy using forward error correction (FEC). Alternatively, path diversity mechanisms are used to improve reliability and thus session quality. To achieve optimized receiver audio quality for transmissions using single or multiple paths, we propose a self-adaptive joint error and rate control framework based on packet loss prediction and on-line quality assessment. The error control chooses proactive FEC to preserve quality with optimal bandwidth, using a Markov decision process (MDP) and a stochastic inventory control, a new approach for multimedia error recovery. The rate control uses a quality optimization model to determine the optimal dispersion over single or multiple paths. We present results using simulation and Internet experiments to show the superiority of our mechanism over other similar techniques.","PeriodicalId":368139,"journal":{"name":"NOMS 2008 - 2008 IEEE Network Operations and Management Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133935268","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}