2017 International Symposium on Networks, Computers and Communications (ISNCC)最新文献

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Heart rhythm monitoring system and IoT device for people with heart problems 心脏问题患者心律监测系统和物联网设备
2017 International Symposium on Networks, Computers and Communications (ISNCC) Pub Date : 2017-05-01 DOI: 10.1109/ISNCC.2017.8072004
R. Narvaez, D. Villacis, T. Chalen, W. Velásquez
{"title":"Heart rhythm monitoring system and IoT device for people with heart problems","authors":"R. Narvaez, D. Villacis, T. Chalen, W. Velásquez","doi":"10.1109/ISNCC.2017.8072004","DOIUrl":"https://doi.org/10.1109/ISNCC.2017.8072004","url":null,"abstract":"This paper describes the design and implementation of a prototype of a mobile real time heart rate monitoring system, in order to get a preventive or detective control of the status of a person who had been diagnosed a heart disease. The system combines a mobile wearable device that senses cardiac rhythm and identify the geographical location of a person, then transmits by GPRS (General Packet Radio Service) technology to a web service where a web application stores, interprets, presents the data and notifies an unusual behavior.","PeriodicalId":176998,"journal":{"name":"2017 International Symposium on Networks, Computers and Communications (ISNCC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125639243","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: 10
Speeding up construction of distributed quadtrees for big-data analytics applications using dilated integers and hashmaps 使用扩展整数和哈希映射加速大数据分析应用的分布式四叉树的构建
2017 International Symposium on Networks, Computers and Communications (ISNCC) Pub Date : 2017-05-01 DOI: 10.1109/ISNCC.2017.8072032
Mayumbo Nyirenda, David Zulu
{"title":"Speeding up construction of distributed quadtrees for big-data analytics applications using dilated integers and hashmaps","authors":"Mayumbo Nyirenda, David Zulu","doi":"10.1109/ISNCC.2017.8072032","DOIUrl":"https://doi.org/10.1109/ISNCC.2017.8072032","url":null,"abstract":"Fast access through retrieval and insertion of data is critical to spatial big data analytics applications. This access is however one of the bottlenecks in large-scale spatial data-centric applications. Distributed spatial indexing structures such as quadtrees have been proposed to help alleviate this bottleneck. Some of the proposed solutions use a static sample of the data to build a quadtree as a directory structure for locating distributed data servers. In this paper, we take into account the process of query redirection during the construction of the distributed quadtree as well as query redirection during a data retrieval process. We propose taking advantage of the static nature of the sample of the data and the use of hashmaps and dilated integers to speed up traversal of the directory. We conduct experiments for construction and data querying and show that both construction and querying performance improves threefold when you compare the new approach to the previously proposed approach. In addition further experiments show that the proposed new approach is much less sensitive to data skewness. Overall our results show that use of dilated integers coupled with hashmaps can improve the performance of distributed spatial indexing structures used to help alleviate the data access bottleneck in big data spatial analytics.","PeriodicalId":176998,"journal":{"name":"2017 International Symposium on Networks, Computers and Communications (ISNCC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126748070","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
Antenna array performances improved by double negative metamaterials 双负极超材料改善天线阵列性能
2017 International Symposium on Networks, Computers and Communications (ISNCC) Pub Date : 2017-05-01 DOI: 10.1109/ISNCC.2017.8072010
Khaoula Mabrouki, Belgacem Aouadi, J. B. Tahar
{"title":"Antenna array performances improved by double negative metamaterials","authors":"Khaoula Mabrouki, Belgacem Aouadi, J. B. Tahar","doi":"10.1109/ISNCC.2017.8072010","DOIUrl":"https://doi.org/10.1109/ISNCC.2017.8072010","url":null,"abstract":"A dual-element Multiple-Input-Multiple-Output (MIMO) antenna system with improved performances is studied. The MIMO antenna system is based on printed monopole antenna at 5.5GHz for Wi-Fi application (IEEE802.11n). A group of printed F-structures as a Double Negative Metamaterial is inserted between the two radiating elements to decrease the correlation between them. The proposed method is compared with the conventional MIMO according to several criteria such as scattering parameters, ECC, TARC, VSWR and total efficiency.","PeriodicalId":176998,"journal":{"name":"2017 International Symposium on Networks, Computers and Communications (ISNCC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129496330","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
Optimization of ldpc codes used in cooperative relay systems: Case of mobile telephony 协同中继系统中ldpc码的优化:以移动电话为例
2017 International Symposium on Networks, Computers and Communications (ISNCC) Pub Date : 2017-05-01 DOI: 10.1109/ISNCC.2017.8071974
I. Diop, Idrissa P. Ndiaye, P. A. Fall, M. Diallo
{"title":"Optimization of ldpc codes used in cooperative relay systems: Case of mobile telephony","authors":"I. Diop, Idrissa P. Ndiaye, P. A. Fall, M. Diallo","doi":"10.1109/ISNCC.2017.8071974","DOIUrl":"https://doi.org/10.1109/ISNCC.2017.8071974","url":null,"abstract":"This paper analyzes the Soft Information Relaying (SIR) for LDPC (Low Density Parity Check) codes in cellular networks. We propose a new way to generate soft parity bits at the relay. This generation of soft parity bits will be done in two steps and will be made to the Cholesky decomposition for one of the submatrices of the global matrix implemented at the destination. In addition to this generation of two-step, we offer an efficient way/manner to compute the logarithms of the Likelihood Ratio (LLR) to the destination. Simulation results show that this technique has advantages over some previous work.","PeriodicalId":176998,"journal":{"name":"2017 International Symposium on Networks, Computers and Communications (ISNCC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116732485","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
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