2008 16th International Conference on Software, Telecommunications and Computer Networks最新文献_第2页

Extending SIP authentication to exploit user credentials stored in existing authentication databases 扩展SIP身份验证以利用存储在现有身份验证数据库中的用户凭据

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669513

S. Salsano, A. Polidoro, L. Veltri

{"title":"Extending SIP authentication to exploit user credentials stored in existing authentication databases","authors":"S. Salsano, A. Polidoro, L. Veltri","doi":"10.1109/SOFTCOM.2008.4669513","DOIUrl":"https://doi.org/10.1109/SOFTCOM.2008.4669513","url":null,"abstract":"The SIP protocol provides authentication and authorization of SIP requests through a challenge-response authentication scheme inherited by the HTTP protocol and named HTTP Digest Authentication. The current specification defines a particular algorithm for calculating the challenge response that uses the MD5 hash of a combination of user name, realm, and password. Unfortunately, a lot of authentication systems maintain the user credentials protected with a one-way function (usually a hash) in a way that is incompatible with the information required by the current HTTP Digest Authentication. Some examples are given by the mechanisms used for storing passwords by the Unix OS, LDAP servers, or other applications. In this paper, we propose to extends the original HTTP Digest Authentication by adding a new and flexible scheme that uses an arbitrary hash function and an arbitrary combination of various information such as user name, realm, password, salt, and/or other data. The proposed authentication scheme has been implemented within two testbeds in which a SIP UA authenticates itself with a remote proxy server (acting as authenticator) that uses respectively a LDAP server or a userspsila password file of a Joomla Content Management System.","PeriodicalId":157790,"journal":{"name":"2008 16th International Conference on Software, Telecommunications and Computer Networks","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130167961","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

A system for the expert analysis of tactical networks’ performances 战术网络性能专家分析系统

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669460

J. Mohorko, S. Klampfer

引用次数: 3

Comparison of MADM decision algorithms for interface selection in heterogeneous wireless networks 异构无线网络中接口选择的MADM决策算法比较

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669464

Phuoc Nguyen, Tran, Nadia Boukhatem

引用次数: 67

Proposal of a driver assistance system based on video and radar data fusion 一种基于视频和雷达数据融合的驾驶员辅助系统的设计

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669499

L. Polidori, E. Gambi, S. Spinsante

引用次数: 6

Capacitive coupling clamp 电容耦合钳

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669455

S. Radman, I. Bacic, K. Malaric

引用次数: 3

Automating construction project quality assurance with RFID- and mobile technologies 利用RFID和移动技术自动化建设项目质量保证

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669484

T. Reisbacka, H. Hamalainen, J. Ikonen

{"title":"Automating construction project quality assurance with RFID- and mobile technologies","authors":"T. Reisbacka, H. Hamalainen, J. Ikonen","doi":"10.1109/SOFTCOM.2008.4669484","DOIUrl":"https://doi.org/10.1109/SOFTCOM.2008.4669484","url":null,"abstract":"The most critical part of a construction project is normally the construction elements that form the structure of the building. Concrete construction elements are often used as support structures and on the facade of the building, but they are vulnerable to manufacturing defects as well as being damaged on-site. Such defects can create a lot of additional costs to all parties involved in the project. Discovering and communicating about errors can be problematic as normally quality assurance is done manually and data is stored in paper format. Our research concentrated on automating the quality assurance of concrete elements. The task was approached by embedding RFID-tags in the elements enabling them to be identified wirelessly and associated with information in a data system. In field conditions users identify the construction elements with a mobile phone and interact electronically with the quality assurance system. As the information is created in digital form, the system can analyze it to detect errors and react automatically, notifying people responsible of faults. This paper presents the implementation of the system and discusses challenges and benefits.","PeriodicalId":157790,"journal":{"name":"2008 16th International Conference on Software, Telecommunications and Computer Networks","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115221529","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: 8

Carrier and sampling frequency offset estimation and tracking in OFDM systems OFDM系统中载波和采样频偏估计与跟踪

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/softcom.2008.4669503

Adrian Langowski

引用次数: 6

Mathematical analysis of routing, based on circular graphs 路由的数学分析，基于圆形图

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669516

S. Klampfer, J. Mohorko, Z. Cucej

引用次数: 2

Design and performance analysis of inductive QoS scheduling for dynamic network routing 面向动态网络路由的电感式QoS调度设计与性能分析

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669468

S. Zouaidi, A. Mellouk, M. Bourennane, S. Hoceini

{"title":"Design and performance analysis of inductive QoS scheduling for dynamic network routing","authors":"S. Zouaidi, A. Mellouk, M. Bourennane, S. Hoceini","doi":"10.1109/SOFTCOM.2008.4669468","DOIUrl":"https://doi.org/10.1109/SOFTCOM.2008.4669468","url":null,"abstract":"In the last decade, due to emerging real-time and multimedia applications, there has been much interest for developing mechanisms to take into account the quality of service required by these applications. We have proposed earlier an approach used an adaptive algorithm for packet routing using reinforcement learning called K-optimal path Q-routing algorithm (KOQRA) which optimizes simultaneously two additive QoS criteria: cumulative cost path and end-to-end delay. The approach developed here adds a new module to KOQRA dealing with the packet scheduling topic in order to achieve QoS differentiation and to optimize the queuing delay in a dynamically wireless changing environment. This module uses a multi-agent system in which each agent tries to optimize its own behaviour and communicate with other agents to make global coordination possible. This communication is done by mobile agents. In this paper, we adopt the framework of Markov decision process applied to multi-agent system and present a pheromone-Q learning approach which combines the standard Q-learning technique with a synthetic pheromone that acts as a communication medium speeding up the learning process of cooperating agents. Numerical results obtained with OPNET simulator for different levels of trafficpsilas load show that adaptive scheduling improves clearly performances of our earlier KOQRA.","PeriodicalId":157790,"journal":{"name":"2008 16th International Conference on Software, Telecommunications and Computer Networks","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131750555","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

Analysis of electromagnetic field coupling to a single wire above a PEC ground using wire antenna theory: Analytical versus numerical solution 用线天线理论分析PEC地面上单线的电磁场耦合:解析解与数值解

2008 16th International Conference on Software, Telecommunications and Computer Networks Pub Date : 2008-11-07 DOI: 10.1109/SOFTCOM.2008.4669449

D. Poljak, K. Drissi, K. Kerroum, S. Šesnić

引用次数: 3