2009 IEEE-RIVF International Conference on Computing and Communication Technologies最新文献_第6页

Overlapping Impacts and Resource Coordination for High-density Wireless Communication 高密度无线通信的重叠影响与资源协调

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174653

Liugang Zheng, D. Hoang

引用次数: 6

2D Ultrasonic Reflection Tomography by Linear Array Transducer and Wave Reflector 线阵换能器和波反射器的二维超声反射层析成像

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174606

A. Sanpanich, K. Hamamoto, M. Sangworasil, C. Pintavirooj

{"title":"2D Ultrasonic Reflection Tomography by Linear Array Transducer and Wave Reflector","authors":"A. Sanpanich, K. Hamamoto, M. Sangworasil, C. Pintavirooj","doi":"10.1109/RIVF.2009.5174606","DOIUrl":"https://doi.org/10.1109/RIVF.2009.5174606","url":null,"abstract":"In general, it was known that when the series of an ultrasonic broadband pulse travel through living organ or soft tissue, their reflected projection data can be used to reconstruct a novel tomographic image. Whereas, a data obtain from an ultrasonic tomography in transmission mode is not able to be used for reconstruction a characteristic image of soft tissue which naturally shadowed by a bone or hard tissue. An ultrasonic tomography in reflection mode is realized to be a solution for this problem. However the implementation to identify the projection by using an integrated attenuation coefficient of tissue from the pulsed wave ray path in reflection mode is still more complicated. In this paper, we propose a simulation in 2D of a reflection-mode ultrasonic tomographic system by using the linear array transducer and also a frequency centroid shift method to calculate the projection data. The imaging setup system was enhanced by wave reflecting plate in order to increase an echo wave path. The ultrasound wave paths of our simulation system were intend to focus on the fan beam trajectory which is rather close to a real propagation of the ultrasound wave travelling through soft tissue and ART was used finally as an image reconstruction algorithm. The obtained output shows that our system is more practical and possible toward for using in a clinical trial.","PeriodicalId":243397,"journal":{"name":"2009 IEEE-RIVF International Conference on Computing and Communication Technologies","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130100400","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: 6

QoS Assessment on Mobile IPv6 移动IPv6的QoS评估

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174656

Nguyet T. A. Vu, T. Pham, O. Koudelka

{"title":"QoS Assessment on Mobile IPv6","authors":"Nguyet T. A. Vu, T. Pham, O. Koudelka","doi":"10.1109/RIVF.2009.5174656","DOIUrl":"https://doi.org/10.1109/RIVF.2009.5174656","url":null,"abstract":"Since IPv6 is designed for fixed hosts, the extension of IPv6 to mobile IPv6 is necessary for management in mobile and wireless environment. In this paper, we present an assessment of current mobile IPv6 performance by the means of the network simulator ns-2 and its extension MOBIWAN. Three different tests have been carried out with different traffic types on different network topologies. We investigate several parameters regarding to QoS such as: packet loss, delay, jitter, handover latency and signaling load to see how they are impacted by the routing strategies, by the medium properties, by the complexity of the topology, and by the behavior of mobile user. Our simulation results show that: i) the use of route optimization prevents the congestion at the home agent and home link of mobile node but higher bandwidth may be required. Furthermore, the improvement of network performance could be significant for only some specific circumstances; ii) when the wired link delay is increased, the binding update latency is also higher which leads to more packet losses during the handover process; iii) in the route optimization mode, the maximum jitter measured from all tests is about 12 ms on average, which is acceptable; iv) with our tested configurations, the binding update latency for the VoIP traffic is about 300 ms which is quite high but still lower than the allowed bound.","PeriodicalId":243397,"journal":{"name":"2009 IEEE-RIVF International Conference on Computing and Communication Technologies","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134218378","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: 2

On the Relation Between Chip Firing Games and Petri Nets 论芯片发射游戏与Petri网的关系

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174652

Le Manh Ha, Pham Tra Ân, T. H. Phan

引用次数: 3

An Eigen Based Feature on Time-Frequency Representation of EMG 基于特征的肌电信号时频表征

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174621

D. Sueaseenak, Theerasak Chanwimalueang, Chaleeya Praliwanon, M. Sangworasil, C. Pintavirooj

引用次数: 2

State of the Art and Emerging Rule-driven Perspectives towards Service-based Business Process Interoperability 面向基于服务的业务流程互操作性的最新技术和新兴规则驱动视角

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174659

D. Hoang, B. Nguyen

{"title":"State of the Art and Emerging Rule-driven Perspectives towards Service-based Business Process Interoperability","authors":"D. Hoang, B. Nguyen","doi":"10.1109/RIVF.2009.5174659","DOIUrl":"https://doi.org/10.1109/RIVF.2009.5174659","url":null,"abstract":"By its very nature, delivering information as a service upon the demands of the business, service-based business processes offer additional features and benefits that can complement traditional BI implementations in providing enterprises of all sizes a new approach to meet their data integration and analysis needs at all levels in the enterprise. To be successful, BI solutions have required new ways of approaching the business process interoperability, providing an efficient support for the whole process of service-based BI deployment. In this context, the focus of this paper is on the state of the art towards business process interoperability in the service-based business environments. Specifically, this paper also aims to highlight significant potentials of business rules that can enable business processes to meet the adaptability and interoperability requirements of service-based business processes. Some of the challenges current rule-based approaches face and potential research opportunities will be also highlighted. Keywords-business process, service oriented architecture, business rule, process interoperability","PeriodicalId":243397,"journal":{"name":"2009 IEEE-RIVF International Conference on Computing and Communication Technologies","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122584356","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: 18

Comparing Three Improved Variants of Simulated Annealing for Optimizing Dorm Room Assignments 比较三种改进的模拟退火算法优化宿舍分配

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174631

N. Trung, D. T. Anh

引用次数: 5

An Application of Neural Networks in the Connection Admission Control of ATM Networks 神经网络在ATM网络接入控制中的应用

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174618

Viet Minh Nhat Vo

引用次数: 0

Reliable Multicast Protocol in Distributed Simulation for Multi-agent Systems 多智能体系统分布式仿真中的可靠组播协议

2009 IEEE-RIVF International Conference on Computing and Communication Technologies Pub Date : 2009-07-13 DOI: 10.1109/RIVF.2009.5174657

P. D. Hai

引用次数: 1