{"title":"Energy-aware relocation of the BS in Wireless Sensor Network","authors":"Abdelfatah Mouiguina, S. Rakrak","doi":"10.1109/NGNS.2012.6656072","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656072","url":null,"abstract":"Lifetime is a relevant issue of a successful Wireless Sensor Network deployment, due to the fact that nodes in WSN have limited resources such as energy, computation capacity, memory size, and antenna coverage. But energy is the most important among them, because all these resources depend on energy. To reduce energy consumption some approaches propose solutions based on link layer and/or network layer, while others try to work in collaborative fashion using clustering techniques and gathering data before the transmission. In this paper we present a new approach for scheduling the mobility of the Base Station, based on a new metric that evaluate the residual energy in the network as whole, and hence assuring a distributed energy consumption and improving the lifetime by avoiding energy shortage in nodes near to the Base Station.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"147 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":"115247087","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":"VPN IPSEC & SSL technology Security and management point of view","authors":"Abdelmajid Lakbabi, Ghizlane Orhanou, S. El Hajji","doi":"10.1109/NGNS.2012.6656108","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656108","url":null,"abstract":"Mobility has driven the need for secure remote access from more locations, end point devices, platforms and environments. Correspondingly, Virtual Private Network (VPN) technology has quickly changed to meet this need. Increasingly, organizations are upgrading their remote access technology from legacy Internet Protocol Security (IPSec VPNs) to more sophisticated Secure Socket Layer VPN (SSL VPN) solutions. We propose to examine the differences between these VPN technologies and approach the accurate criteria for deciding what technology will fit better for networks access needs. In this paper, we will study VPN IPSEC and SSL VPN to have a clear idea about flexibility and security features that the two technologies offer; then help security managers to make the right decision when comparing both protocols Strengths and Weaknesses from a security and management perspective.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"24 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":"122705997","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":"Dynamic resource allocation using hybrid Cooperative Relaying and Network Coding in LTE-Advanced network","authors":"A. Zainaldin, H. Halabian, I. Lambadaris","doi":"10.1109/NGNS.2012.6656087","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656087","url":null,"abstract":"Cooperative Relaying (CoR) and Network Coding (NC) are two promising techniques for improving the performance of next generation LTE-Advanced networks. In this paper, a dynamic resource allocation scheme is proposed in relay-assisted LTE-Advanced networks under asymmetric traffic condition. In our scheme, a Two-Way Relay Channel (TWRC) is considered with three nodes: User Equipment (UE), Base Station or eNodeB (eNB) and an intermediate Relay Station (RS). In such a network, LTE UEs and eNB can choose between different transmission schemes: direct transmission, pure CoR (CoR scheme) using an intermediate relay station, or via the combination of Network Coding and Cooperative Relaying (NC/CoR scheme). We study the achievable rate regions for direct transmission, CoR and NC/CoR and it is noticed that NC/CoR does not always achieve better performance than CoR or direct transmission. Therefore, a hybrid transmission scheme with adaptive resource allocation is proposed to dynamically choose the best transmission scheme among NC/CoR, pure CoR or direct transmission. The simulation results show that the hybrid algorithm significantly outperforms conventional schemes for both SISO and MIMO systems.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"31 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":"121309697","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 impact of the intrinsic context on the recommendation process","authors":"L. Baba-hamed, Reda Soltani","doi":"10.1109/NGNS.2012.6656064","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656064","url":null,"abstract":"In this paper we present a new approach which allows the introduction of intrinsic context in the recommendation process. In this approach, we define the context from the point of view of objects. We show, also, by combining it with the user's profile, how it can improve the accuracy of the recommendation and thus better meets the needs of users.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"64 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":"127394603","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":"Coverage and Connectivity Preserving Routing Protocol for heterogeneous wireless sensor networks","authors":"Said Ben Alla, Abdellah Ezzati","doi":"10.1109/NGNS.2012.6656097","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656097","url":null,"abstract":"Coverage preservation and connectivity are the most essential functions to guarantee quality of service (QoS) in wireless sensor network. Therefore, the goal of an optimal sensor deployment strategy is to have a globally connected network, while optimizing coverage at the same time. By optimizing coverage, the deployment strategy would guarantee that optimum area in the sensing field is covered by sensors, as required by various types of mission-critical applications involving extensive battlefield surveillance, medical healthcare, etc. Whereas by ensuring that the network is connected, it is ensured that the sensed information is transmitted to other nodes and possibly to a centralized base station which makes valuable decisions for the applications. However, a tradeoff exists between sensing coverage and network lifetime due to the limited energy supplies of sensor nodes. In this paper, we propose a Coverage and Connectivity Preserving Routing Protocol for heterogeneous wireless sensor networks (CCPRP) to accommodate connectivity, energy-balance and coverage-preservation for sensor nodes in wireless sensor networks that are hierarchically clustered. The energy consumption for radio transmissions and the residual energy over the network are taken into account when the proposed protocol determines an energy-efficient route for a data from elected cluster head to the base station through elected gateway, we define a cost metric that favours those nodes being more energy-redundantly covered as better candidates for cluster heads in a way to improve the performance of sensing coverage, reduce communications energy and prolonging the effective network lifetime with optimal data delivery. The simulation results demonstrate that the proposed protocol is able to increase the duration of the on-duty network and provide up to 108.7% of extra service time with 100% sensing coverage ratio comparing with other existing protocols.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"105 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":"132368899","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 Learning Model S2P: A formal and a personal dimension","authors":"Salah Eddine Bahji, Youssef Lefdaoui, J. el Alami","doi":"10.1109/NGNS.2012.6656067","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656067","url":null,"abstract":"The S2P Learning Model was originally designed to try to understand the Game-based Learning, seen as a learning approach. He subsequently was developed to translate a conceptual framework for understanding any formal learning initiative. This model is essentially based on three complementary layers namely: Formal Learning Strategy, Learning Platform, and Learning Process. Knowing that the S2P Learning Model has focused previously on the formal dimension of learning, and knowing that this process of appropriation of knowledge includes a dominant individual dimension, it would be crucial to integrate it in this model of understanding, in order to consider both formal and personal dimensions in any educational initiative. Especially since the individual dimension is strongly present in academia, where students are becoming more independent, autonomous and demanding, this article focuses mainly on the incorporation of the individual dimension in the S2P Learning Model. Aiming to exploit optimally the two dimensions (formal and personal) to catalyze and foster the learning process.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"37 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":"117092478","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}
Abedelhalim Hnini, Ahmed Mohcin, Abdellah Ezzati, A. Hajami
{"title":"Evaluation of LEACH QoS subject to multimedia traffic types","authors":"Abedelhalim Hnini, Ahmed Mohcin, Abdellah Ezzati, A. Hajami","doi":"10.1109/NGNS.2012.6656112","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656112","url":null,"abstract":"Wireless multimedia sensor networks (WMSN) are a new emerging technology type of sensor. In this type of application, the networks should maximize Quality of Service (QoS) by minimizing energy dissipation. In this paper, we present the LEACH comportment of the multimedia traffic with our technical communication and we compare with normal traffic. Then we present our proposition to increase the QoS metrics. Also, the simulation results show LEACH protocol with multimedia traffic which gives the best performance and low energy consumption.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"9 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":"115352530","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 comparative study of link analysis algorithms for information retrieval","authors":"B. Frikh, B. Ouhbi, A. Ameur","doi":"10.1109/NGNS.2012.6656104","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656104","url":null,"abstract":"The World Wide Web has emerged to become the biggest and most popular way of communication and information dissemination. Every day, the Web is expending and people generally rely on search engine to explore the Web. Because of its rapid and chaotic growth, the resulting network of information lacks of organization and structure. It is a challenge for service provider to provide proper, relevant and quality information to the Internet users by using the Web page contents and hyperlinks between Web pages. This paper deals with analysis and comparison of Web pages ranking algorithms based on various parameters to find out their advantages and limitations for ranking Web pages and to give the further scope of research in Web pages ranking algorithms.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"25 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":"121749019","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}
S. Benkirane, Abderrahim Beni Hssane, M. Laghdir, M. L. Hasnaoui, My Driss El Ouadghiri
{"title":"Effective and appropriate radio channels model for wireless sensor network","authors":"S. Benkirane, Abderrahim Beni Hssane, M. Laghdir, M. L. Hasnaoui, My Driss El Ouadghiri","doi":"10.1109/NGNS.2012.6656100","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656100","url":null,"abstract":"A MAC protocol is required in sensor networks to coordinate the sensor nodes' access to the shared medium. Designing power efficient MAC protocols is one of the ways to prolong the lifetime of the network. In addition to energy efficiency, latency and throughput are also important features for consideration in MAC protocol design for sensor networks. In this paper we try by analysis and simulation to find the best model of radio channels that will be effective and suitable for WSN by evaluating the performance of different radio channels in terms of Energy efficiency, Latency and Throughput using a probabilistic wireless sensor network simulator called Prowler.","PeriodicalId":102045,"journal":{"name":"2012 Next Generation Networks and Services (NGNS)","volume":"15 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":"124020404","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":"Classification and fusion results in metasearch engines","authors":"I. Abdelbaki, E. Benlahmar, E. Labriji","doi":"10.1109/NGNS.2012.6656089","DOIUrl":"https://doi.org/10.1109/NGNS.2012.6656089","url":null,"abstract":"Searching for information on the Internet is not only an essential way to get information, but also a strategic tool to obtain a wide variety of information. Unfortunately, Web is so huge and so unstructured that the collection of specific, fair and useful information becomes a daunting ant time-wasting task. To define information research tool (metasearch engine) which has the aim to combine several sources of information, the main interest should be brought to the fusion step of results from search engines.","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":"115652200","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}