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2012 Next Generation Networks and Services (NGNS)最新文献

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Comparative study and analysis of VoIP traffic over WiMAX using different service classes 使用不同服务类别的WiMAX VoIP流量的比较研究和分析
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656103
Tarik Anouari, A. Haqiq
{"title":"Comparative study and analysis of VoIP traffic over WiMAX using different service classes","authors":"Tarik Anouari, A. Haqiq","doi":"10.1109/NGNS.2012.6656103","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656103","url":null,"abstract":"The Worldwide Interoperability for Microwave Access (WiMAX) is a set of technical standards based on IEEE 802.16 standard, WiMAX is an alternative solution for the deployment of broadband networks in the territories, whether or not covered by other technologies such as ADSL or cable. It provides flexibility in network deployment options and service and supports point-to-multipoint (PMP) and Mesh mode. In parallel, VoIP is a technique that allows communicating by voice over IP compatible networks, one of the main advantages of VoIP is its ability to reduce costs, it becomes an alternative to public switched telephone. Voice traffic is highly delay intolerant and it needs a high priority transmission. In this paper, we investigate the performances of the most common VoIP codecs, named as G.711, G.723.1 and G.729 using Best Effort, UGS, rtPS, ertPS and nrtPS service classes and NOAH routing protocol. NS-2 simulator is used to analyze the QoS parameters. The objective is to compare different WiMAX's service classes with respect to the QoS parameters, such as, average jitter, throughput and average delay.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125377510","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
Mathematical model for LTE system dimensioning LTE系统维数的数学模型
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656110
Mohammed Jaloun, Z. Guennoun
{"title":"Mathematical model for LTE system dimensioning","authors":"Mohammed Jaloun, Z. Guennoun","doi":"10.1109/NGNS.2012.6656110","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656110","url":null,"abstract":"The objective of this paper is to define a mathematic model for the dimensioning of LTE Rel-8 network. After describing the mechanisms influencing the dimensioning such us the Scheduling, QOS and LTE capacity, we define the strategy of the planning and the objective function which aim to minimize the number of the base stations and the capacities of the wired links to deploy. The mathematical formulation of the model leads to a linear and mixed problem. CPLEX method based on “Branch and Cut” algorithm is used to solve this problem.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116887018","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
An efficient optimization model for Fixed Channel Assignment in Wireless Mesh Networks 一种有效的无线Mesh网络固定信道分配优化模型
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656111
T. Mountassir, B. Nassereddine, A. Haqiq, S. Bennani
{"title":"An efficient optimization model for Fixed Channel Assignment in Wireless Mesh Networks","authors":"T. Mountassir, B. Nassereddine, A. Haqiq, S. Bennani","doi":"10.1109/NGNS.2012.6656111","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656111","url":null,"abstract":"Channel Assignment in Wireless Mesh Networks has to ensure connectivity, and guarantee an acceptable throughput. This problem, being NP-hard, must be solved taking into account all the parameters that influence the output of the proposed algorithm. In this paper, we propose an efficient multi-objective optimization model that, simultaneously, optimizes two conflicting objective functions in order to assign channel to radio interfaces subject to connectivity, interference and bandwidth requirements.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117007726","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: 1
New hybrid measure for the similarity between two queries in an information retrieval system 信息检索系统中两个查询相似度的一种新的混合度量
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656099
Hicham Moutachaouik, B. Ouhbi, Hicham Behja, B. Frikh, A. Marzak, H. Douzi
{"title":"New hybrid measure for the similarity between two queries in an information retrieval system","authors":"Hicham Moutachaouik, B. Ouhbi, Hicham Behja, B. Frikh, A. Marzak, H. Douzi","doi":"10.1109/NGNS.2012.6656099","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656099","url":null,"abstract":"Find relevant documents for a given query in search process information seems a challenge for all models and techniques embodied in an information retrieval system. We continue this challenge by proposing a new measure of similarity between two queries. This similarity measure is based on two aspects: the first is statistical based on the statistic X2 (method CHIR) and the second is semantic based on the mutual information. Our proposed method shows its efficiency and performance according to tests performed on the standard corpus of research information CACM.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129947244","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: 1
Object serialization white framework in J2ME and its refactoring in black framework J2ME中的对象序列化白框架及其在黑框架中的重构
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656090
M. Mahieddine, Mehdia Ajana El-Khaddar, Salyha Oukid
{"title":"Object serialization white framework in J2ME and its refactoring in black framework","authors":"M. Mahieddine, Mehdia Ajana El-Khaddar, Salyha Oukid","doi":"10.1109/NGNS.2012.6656090","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656090","url":null,"abstract":"J2ME mobile agents developers are very soon confronted with the problem of objects transfer over the communication flows (streams) provided by J2ME which, by themselves, take into account only the primitive types or simple String objects of JAVA. Serialization is the process of saving the state of an object on a flow of communication, transferring it in the net, and restoring its equivalent from this flow. Unfortunately J2ME software development cannot be used as standard JAVA because it has many strong restrictions, which cannot be easily used as the standard JAVA. For example, in the case of mobile agent software development, J2ME does not provide tools for the serialization of objects. This research addresses the lack of a standard development environment for mobile agents under J2ME. In this work we propose a pattern-based white-box application framework, in order to achieve the serialization of complex JAVA Objects and its re-factoring into a black-box application framework.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122356125","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: 0
Providing assessment services to an e-learning platform using OpenSocial gadgets 为使用OpenSocial工具的电子学习平台提供评估服务
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656091
M. Llamas-Nistal, M. Caeiro-Rodríguez, Juan González-Tato, Javier Álvarez-Osuna
{"title":"Providing assessment services to an e-learning platform using OpenSocial gadgets","authors":"M. Llamas-Nistal, M. Caeiro-Rodríguez, Juan González-Tato, Javier Álvarez-Osuna","doi":"10.1109/NGNS.2012.6656091","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656091","url":null,"abstract":"Traditional learning uses to take advantage of on-line services for sharing information, chat and schedule agendas. For two years we have been using a Web-based e-learning platform called BeA centred on assisting the evaluation of traditional exams (i.e. handwritten examinations). The platform allows students to check their evaluated handwritten exams using any Web browser. Students can see their final score and a detailed description of their mistakes remotely. In this document we present our efforts on to provide a new interface to this platform by using OpenSocial gadgets, created in the Pi2E project.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127569390","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: 0
Outage probability based unified framework for always transmit solution in cognitive radio systems 基于中断概率的认知无线电系统总发射方案统一框架
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656085
Mohammed Ridouani, A. Hayar
{"title":"Outage probability based unified framework for always transmit solution in cognitive radio systems","authors":"Mohammed Ridouani, A. Hayar","doi":"10.1109/NGNS.2012.6656085","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656085","url":null,"abstract":"Cognitive radio is a promising technology that uses radio spectrum opportunely and efficiently. In this paper, we propose a unified framework for enhancing the cognitive sources data transmission to provide “Always Transmit” solution using mixed strategies in cognitive radio context. Indeed, we propose to combine underlay and interweave approaches depending on the activity of primary system and taking into account secondary user QoS. We analyze the outage probability of cognitive transmission under joint transmission power constraint and interference power constraint over Rayleigh fading channels. This framework accounts for all the parameters that affect the performance and provides fundamental insights that may be of value to the transmission scenario, such as the spectrum sensing duration, spectrum hole detection, primary system bandwidth occupancy, transmission and interference power constraints.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122480790","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: 5
Mobility prediction and location management based on data mining 基于数据挖掘的移动预测与位置管理
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656095
M. Daoui, Malika Belkadi, Lynda Chamek, M. Lalam, Sofiane Hamrioui, A. Berqia
{"title":"Mobility prediction and location management based on data mining","authors":"M. Daoui, Malika Belkadi, Lynda Chamek, M. Lalam, Sofiane Hamrioui, A. Berqia","doi":"10.1109/NGNS.2012.6656095","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656095","url":null,"abstract":"This paper presents a mobility prediction and location management technique based on one of the most used Data mining technique which is The association rules. Our solution can be implemented on a third-generation mobile network by exploiting the data available on existing infrastructure (roads, locations of base stations, ... etc.) and the users' displacements history. Simulations carried out using a realistic model of movements showed that our strategy can accurately predict up to 90% of the users' movements by knowing only their last two movements.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128766655","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: 9
A prototype for wireless sensor networks to the detection of forest fires in large-scale 一种用于大规模森林火灾探测的无线传感器网络原型
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656065
Yassine Sabri, N. El Kamoun
{"title":"A prototype for wireless sensor networks to the detection of forest fires in large-scale","authors":"Yassine Sabri, N. El Kamoun","doi":"10.1109/NGNS.2012.6656065","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656065","url":null,"abstract":"Location determination is an important problem for almost all WSN applications. However, obviously becomes an important target in the case of surveillance systems for forest fires do not have to support real-time monitoring of each point of an area at any time location early threat of fire.Solutions applying wireless sensor networks, on the other hand, can gather sensorial data values, like temperature and humidity, from all points of a area incessantly, day and night, and allow for fresh and precise data to the fire-fighting center rapidly.In this paper, we present the pattern and implementation of a model for the detection and localization of forest fires and the control environment. In order to know precisely and almost in real time the risk of forest fires, we design and are implementing a protocol type “Range-based” for a large-scale deployment based on convex hull. The efficiency of the method is demonstrated by simulations, we show that our framework can supply quick response to forest fires while consuming energy efficiently.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130421021","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
Towards an SNA system for evaluating project virtual teams based on social collaborative platforms 基于社会协作平台的项目虚拟团队评价SNA系统研究
2012 Next Generation Networks and Services (NGNS) Pub Date : 2012-12-01 DOI: 10.1109/NGNS.2012.6656086
Lamia Ben Hiba, M. Idrissi
{"title":"Towards an SNA system for evaluating project virtual teams based on social collaborative platforms","authors":"Lamia Ben Hiba, M. Idrissi","doi":"10.1109/NGNS.2012.6656086","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656086","url":null,"abstract":"As project teams are increasingly becoming fluid and geographically distributed, they are more and more relying on social collaborative platforms to ensure effective communication and knowledge dissemination. However the use of these platforms poses challenges as they often cause information overload or hoarding and thus give birth to inefficient communication patterns. The study of these patterns with a network perspective is at the heart of Social Network Analysis (SNA), which is a descriptive, empirical research method for mapping and measuring relationships and flows between people, groups, and other connected information and knowledge entities. In a previous work [1], we proposed an SNA-based assessment framework to provide managers with a decision support tool to evaluate and diagnose virtual teams. In this paper we examine the process of building the SNA system based on data collected from social collaborative platforms.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"1987 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131090092","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: 4
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