{"title":"Weighted localization in Vehicular Ad Hoc Networks using vehicle-to-vehicle communication","authors":"Lina Altoaimy, I. Mahgoub, M. Rathod","doi":"10.1109/GIIS.2014.6934270","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934270","url":null,"abstract":"Vehicular Ad Hoc Networks (VANETs) have attracted the interest of many researchers all over the world. With advances in technologies in wireless networks, vehicles will be able to communicate with each other and roadside units (RSU), to exchange road and traffic information. VANET and many other applications demand a real-time, accurate position of a vehicle; highlighting the importance of accurate localization. A number of methods and protocols have been proposed to fulfill this requirement, However, they have not attained high location accuracy required for VANET safety applications. We propose two new localization methods that assist vehicles in estimating their positions: 1) weighted localization (WL) using signal to interference-noise ratio (SINR) obtained from the exchange messages, and 2) weighted localization using SINR and distance between the neighboring vehicles (WLD). Our methods expand the concept of centroid localization (CL) by assigning a weight to each of the neighboring vehicles' coordinates, based on SINR values and the distance. We develop a simulation program to evaluate our methods against CL and relative span weighted localization (RWL). Our simulation results show that WLD demonstrates a better performance with less average location errors than CL and RWL in varying of densities.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114610872","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}
Btissam Er Rahmadi, A. Ksentini, Djamal-Eddine Meddour
{"title":"New backhaul approach for small cells based coverage in green-field deployments","authors":"Btissam Er Rahmadi, A. Ksentini, Djamal-Eddine Meddour","doi":"10.1109/GIIS.2014.6934266","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934266","url":null,"abstract":"In this paper, we address the problematic choice of linking and aggregating Small Cells (SCs) access nodes with a dedicated and cost-efficient backhaul designated to offer a new coverage service for infrastructureless area. We formulate this issue as an optimization problem, and solve it by providing an Integer Linear Program (ILP). For high instances, three heuristic algorithms are investigated. Implementation of those different approaches, for three use case topologies, leads to compare linking generated cost for considered topologies as a function of own traffic of each SC node. Obtained results yield to make first step to light up the problem of backhauling a full SCs access network conceived to cover a green field area.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114026579","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":"Padovan sequence based Backoff Algorithm for improved wireless medium access in MANETs","authors":"Dalil Moad, S. Djahel, Farid Naït-Abdesselam","doi":"10.1109/GIIS.2014.6934267","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934267","url":null,"abstract":"In this paper, we propose a novel Backoff scheme, dubbed Padovan Backoff Algorithm (PBA), to improve the efficiency of IEEE 802.11 MAC protocol when operating in DCF mode. PBA will enable significant reduction of the number of collisions when more than one node try to access the shared wireless medium concurrently, leading to an enhanced network performance. The Binary Exponential Backoff (BEB) scheme used in IEEE 802.11 has been proven to not be the optimal backoff algorithm for MANETs. This is mainly due to the exponential increase of the Contention Window (CW) size when a collision occurs, which results in picking the random backoff timer from a large interval that may lead to a longer waiting time before the node tries to retransmit again. Therefore, this waiting time for the idle medium could be important, especially in dense networks where consecutive collisions are more likely to happen, and thus causes a severe degradation of the network performance. To overcome the above issue, PBA employs a different scheme that reduces the size of CW as compared to BEB, thanks to the Padovan sequence. The obtained simulation results reveal that the PBA allows more efficient network resources utilization and outperforms the legacy BEB scheme in different scenarios.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116289774","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}
P. Lepage, D. Létourneau, M. Hamel, Simon Brière, M. Tousignant, F. Michaud
{"title":"From teletraining to telehomecare — Design of mobile and multi-stream telehealth systems","authors":"P. Lepage, D. Létourneau, M. Hamel, Simon Brière, M. Tousignant, F. Michaud","doi":"10.1109/GIIS.2014.6934274","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934274","url":null,"abstract":"Telehealth success relies on the ability of information and communication technologies (ICT) to maximize the quality of care provided remotely, i.e., providing diagnostics and treatments of the same quality compared to face-to-face or conventional means, and maximize the benefits for the patients, the clinicians and the system of care. Because of the specific nature of health-related processes, successful development of telehealth technologies must be driven by clinical and application needs that are not addressed by currently available ICT. In this paper, we present two telehealth systems developed in two different contexts, one for teletraining of surgical procedures, and one for telerehabilitation, and from which common requirements can be identified for the development of a more generic platform. This paper also situates where these systems are in relation to their stage of development and their assessment as telehealth technologies.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116478244","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":"Optimizing FPGAs for supporting WBANs","authors":"M. Bontorin, G. Jakllari, M. N. Lima, A. Santos","doi":"10.1109/GIIS.2014.6934277","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934277","url":null,"abstract":"The usage of Field Programmable Gate Arrays (FPGAs) in resource-constrained devices depends on energy consumption optimization techniques. Existing techniques to reduce FPGA's energy consumption have been based on several levels of abstraction, from new transistor technologies to mapping algorithms present in circuit CAD tools. This work proposes a bio-inspired technique, called AntES (plAcement, pipeliNing and reTiming for Energy Saving), that integrates the FPGA CAD flow joining placement, pipelining and retiming steps in order to reduce energy consumption and support WBANs.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130750549","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":"Constraint-based configuration complexity model for autonomic network configuration management","authors":"Rudy Deca, O. Cherkaoui, Y. Savaria","doi":"10.1109/GIIS.2014.6934272","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934272","url":null,"abstract":"Networks and services are constantly changing under the influence of evolving technologies, environment, infrastructure, user demands, etc. To ensure their permanent consistency and cut downtime and costs, service providers need efficient means for assessing the complexity of network management tasks and choosing the most adequate change strategies in terms of efficiency, speed and reliability. We present a novel rule-based approach that introduces metrics adequate for quantifying the complexity of network device configuration validation.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122622528","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":"Energy-aware design for wireless mesh networks","authors":"Sarra Mamechaoui, F. Didi, S. Senouci, G. Pujolle","doi":"10.1109/GIIS.2014.6934259","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934259","url":null,"abstract":"Wireless mesh networks (WMNs) are the next step in the development of the wireless architecture, delivering wireless services for a large variety of users in personal, local, campus, and metropolitan areas. Energy efficiency solutions are becoming more vital for both local access networks and wireless networks and Green IT has attracted a considerable attention. However, the application of green network for wireless mesh networks has seldom been described in the literature. However, WMNs infrastructure devices are always active. Thus, during lower traffic periods the energy consumption is the same as in busy hours, while it would be possible to save a large amount of power. In this paper, we propose a novel green approach for power management in WMNs to enhance energy efficiency and network operation. The key objective of the proposed work is to optimize network energy consumption by putting under-utilized MRs to sleep state. To achieve this, we present a Mixed Integer Linear Program (MILP) model. We suggest Energy-Aware Design (EAD) to study the performance of WMN deployment scenario in Tlemcen city in Algeria over dynamic traffic profiles. The combination of the flexibility of WMN with Energy-Aware Design can efficiently reduce energy consumption in WMNs without significantly impacting the network performance.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121620586","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 hybrid algorithm for planning public charging stations","authors":"Zoulikha Bendiabdellah, S. Senouci, M. Feham","doi":"10.1109/GIIS.2014.6934262","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934262","url":null,"abstract":"Green mobility solutions are receiving currently an enormous attention. Indeed, during last years, electric vehicles, being part of the field of the smart-grid, entered the automobile market of the whole world. This technology requires an effective deployment of charging stations of electric refill since the main problem in this system remains over the duration of refill of the batteries. In this work, we propose an optimized algorithm to locate electric charging stations. The main task of the algorithm is to find the best site of charging stations locations so as to minimize loss on the way to the charging station, as well as minimize investment cost, we take into account several constraints to find the optimal number and placement of charging station. Our hybrid algorithm with improved K-means clustering and genetic algorithm can be used to find optimal number and place of charging stations.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121115810","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":"An experimental study of hybrid energy-aware scheduling in a cloud testbed","authors":"A. Miles, Yan Bai, Donald D. Chinn, B. Bhargava","doi":"10.1109/GIIS.2014.6934287","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934287","url":null,"abstract":"Open-source cloud management often has a high degree of centralization and limited support of power management. This paper develops a hybrid approach that combines suspending idle server and load-balancing of virtual machines to minimize energy consumption in the cloud environment. We have conducted a series of experiments evaluating the performance of the hybrid approach under different synthetic CPU loads and memory usage. We also studied the effect of traditional task scheduling schemes in conjunction with our hybrid approach on energy consumption. Experimental results show that the hybrid technique can increase power saving by approximately 10-20% with various server configurations, workloads and task scheduling schemes, while meeting a variety of service requirements of different applications.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127815789","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":"Mapping a community network","authors":"B. Braem, J. Bergs, Jeroen Avonts, C. Blondia","doi":"10.1109/GIIS.2014.6934252","DOIUrl":"https://doi.org/10.1109/GIIS.2014.6934252","url":null,"abstract":"Community networks are self-organized networks which exist all around the world. For a large number of users, they are the only form of communication in the community itself and with the Internet. All community networks maintain some database where all information about the nodes in the community network is stored. The database information is manually inserted in the database, which commonly leads to a mismatch between the documentation and reality. In this paper we present a dynamic community network mapper, complementary to the node database. We explain the goals of this approach, show the challenges and steps we took to realize such a mapper, and give initial results.","PeriodicalId":392180,"journal":{"name":"2014 Global Information Infrastructure and Networking Symposium (GIIS)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133752956","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}