Journal of Communications Software and Systems最新文献_第10页

Monopoly-Market-based Cooperation in Cognitive Radio Networks 认知无线电网络中基于垄断市场的合作

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Journal of Communications Software and Systems Pub Date : 2020-11-03 DOI: 10.24138/jcomss.v16i4.994

Said Lakhal, Z. Guennoun

引用次数: 0

A Crowdsourcing Based Framework for Sentiment Analysis 基于众包的情感分析框架

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Journal of Communications Software and Systems Pub Date : 2020-10-23 DOI: 10.24138/jcomss.v16i4.935

F. Z. Ennaji, A. E. Fazziki, H. E. A. E. Abdallaoui, H. E. Kabtane

{"title":"A Crowdsourcing Based Framework for Sentiment Analysis","authors":"F. Z. Ennaji, A. E. Fazziki, H. E. A. E. Abdallaoui, H. E. Kabtane","doi":"10.24138/jcomss.v16i4.935","DOIUrl":"https://doi.org/10.24138/jcomss.v16i4.935","url":null,"abstract":"As social networking has spread, people started sharing their personal opinions and thoughts widely via these online platforms. The resulting vast valuable data represent a rich source for companies to deduct their products’ reputation from both social media and crowds’ judgments. To exploit this wealth of data, a framework was proposed to collect opinions and rating scores respectively from social media and crowdsourcing platform to perform sentiment analysis, provide insights about a product and give consumers’ tendencies. During the analysis process, a consumer category (strict) is excluded from the process of reaching a majority consensus. To overcome this, a fuzzy clustering is used to compute consumers’ credibility. The key novelty of our approach is the new layer of validity check using a crowdsourcing component that ensures that the results obtained from social media are supported by opinions extracted directly from real-life consumers. Finally, experiments are carried out to validate this model (Twitter and Facebook were used as data sources). The obtained results show that this approach is more efficient and accurate than existing solutions thanks to our two-layer validity check design.","PeriodicalId":38910,"journal":{"name":"Journal of Communications Software and Systems","volume":"16 1","pages":"285-295"},"PeriodicalIF":0.7,"publicationDate":"2020-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46174222","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

Doppler Frequency Estimation for a Maneuvering Target Being Tracked by Passive Radar Using Particle Filter 被动雷达跟踪机动目标的粒子滤波多普勒频率估计

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Journal of Communications Software and Systems Pub Date : 2020-10-08 DOI: 10.24138/jcomss.v16i4.1097

Anas Mahmoud Almanofi, A. Malki, Ali Kazem

引用次数: 1

Viability of Numerical Full-Wave Techniques in Telecommunication Channel Modelling 数字全波技术在电信信道建模中的可行性

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Journal of Communications Software and Systems Pub Date : 2020-10-08 DOI: 10.24138/jcomss.v16i4.1041

Roman Novak

{"title":"Viability of Numerical Full-Wave Techniques in Telecommunication Channel Modelling","authors":"Roman Novak","doi":"10.24138/jcomss.v16i4.1041","DOIUrl":"https://doi.org/10.24138/jcomss.v16i4.1041","url":null,"abstract":"In telecommunication channel modelling the wavelength is small compared to the physical features of interest, therefore deterministic ray tracing techniques provide solutions that are more efficient, faster and still within time constraints than current numerical full-wave techniques. Solving fundamental Maxwell's equations is at the core of computational electrodynamics and best suited for modelling electrical field interactions with physical objects where characteristic dimensions of a computing domain is on the order of a few wavelengths in size. However, extreme communication speeds, wireless access points closer to the user and smaller pico and femto cells will require increased accuracy in predicting and planning wireless signals, testing the accuracy limits of the ray tracing methods. The increased computing capabilities and the demand for better characterization of communication channels that span smaller geographical areas make numerical full-wave techniques attractive alternative even for larger problems. The paper surveys ways of overcoming excessive time requirements of numerical full-wave techniques while providing acceptable channel modelling accuracy for the smallest radio cells and possibly wider. We identify several research paths that could lead to improved channel modelling, including numerical algorithm adaptations for large-scale problems, alternative finite-difference approaches, such as meshless methods, and dedicated parallel hardware, possibly as a realization of a dataflow machine.","PeriodicalId":38910,"journal":{"name":"Journal of Communications Software and Systems","volume":"16 1","pages":"269-278"},"PeriodicalIF":0.7,"publicationDate":"2020-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42455579","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

Human Retina Based Identification System Using Gabor Filters and GDA Technique 基于Gabor滤波器和GDA技术的人视网膜识别系统

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Journal of Communications Software and Systems Pub Date : 2020-09-08 DOI: 10.24138/jcomss.v16i3.1031

Shahad A. Sultan, M. F. Ghanim

{"title":"Human Retina Based Identification System Using Gabor Filters and GDA Technique","authors":"Shahad A. Sultan, M. F. Ghanim","doi":"10.24138/jcomss.v16i3.1031","DOIUrl":"https://doi.org/10.24138/jcomss.v16i3.1031","url":null,"abstract":"A biometric authentication system provides an\u0000automatic person authentication based on some characteristic\u0000features possessed by the individual. Among all other biometrics,\u0000human retina is a secure and reliable source of person\u0000recognition as it is unique, universal, lies at the back of the eyeball and hence it is unforgeable. The process of authentication\u0000mainly includes pre-processing, feature extraction and then\u0000features matching and classification. Also authentication systems\u0000are mainly appointed in verification and identification mode\u0000according to the specific application. In this paper, preprocessing and image enhancement stages involve several steps to\u0000highlight interesting features in retinal images. The feature\u0000extraction stage is accomplished using a bank of Gabor filter with\u0000number of orientations and scales. Generalized Discriminant\u0000Analysis (GDA) technique has been used to reduce the size of\u0000feature vectors and enhance the performance of proposed\u0000algorithm. Finally, classification is accomplished using k-nearest\u0000neighbor (KNN) classifier to determine the identity of the genuine\u0000user or reject the forged one as the proposed method operates in\u0000identification mode. The main contribution in this paper is using\u0000Generalized Discriminant Analysis (GDA) technique to address\u0000‘curse of dimensionality’ problem. GDA is a novel method used\u0000in the area of retina recognition.","PeriodicalId":38910,"journal":{"name":"Journal of Communications Software and Systems","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48350226","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

A Wearable Fall Detection System based on LoRa LPWAN Technology 基于LoRa LPWAN技术的可穿戴跌倒检测系统

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Journal of Communications Software and Systems Pub Date : 2020-07-28 DOI: 10.24138/jcomss.v16i3.1039

E. Zanaj, Deivis Disha, S. Spinsante, E. Gambi

引用次数: 2

Evaluation of ZigBee Topology Effect on Throughput and End to End Delay Due to Different Transmission Bands for IoT Applications 物联网应用中不同传输频带对ZigBee拓扑结构吞吐量和端到端延迟影响的评估

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Journal of Communications Software and Systems Pub Date : 2020-07-22 DOI: 10.24138/jcomss.v16i3.975

Y. R. Hamdy, A. I. Alghannam

{"title":"Evaluation of ZigBee Topology Effect on Throughput and End to End Delay Due to Different Transmission Bands for IoT Applications","authors":"Y. R. Hamdy, A. I. Alghannam","doi":"10.24138/jcomss.v16i3.975","DOIUrl":"https://doi.org/10.24138/jcomss.v16i3.975","url":null,"abstract":"ZigBee is widely used in wireless network in\u0000Internet of Things (IoT) applications to remotely sensing and\u0000automation due to its unique characteristics compared to other\u0000wireless networks. According to ZigBee classification of IEEE\u0000802.15.4 standard, the network consists of four layers. The\u0000ZigBee topology is represented in second layer. Furthermore, the\u0000ZigBee topology consists of three topologies, star, tree and mesh.\u0000Also there are many transmission bands allowed in physical\u0000layer, such as 2.4 GHz, 915 MHz, 868 MHz. The aim of this paper\u0000is to evaluate the effect of ZigBee topologies on End to End delay\u0000and throughput for different transmission bands. Riverbed\u0000Modeler is used to simulate multiple ZigBee proposed scenarios\u0000and collect the results. The results of the study recommend which\u0000topology should be used at each transmission band to provide\u0000lowest End to End delay or obtain maximum throughput, which\u0000is case sensitive in some IoT applications that required for\u0000example minimum delay time or sending high amount of data.","PeriodicalId":38910,"journal":{"name":"Journal of Communications Software and Systems","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47127014","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

Security Enhancement in Cloud Environment using Secure Secret Key Sharing 使用安全密钥共享增强云环境中的安全性

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Journal of Communications Software and Systems Pub Date : 2020-07-20 DOI: 10.24138/jcomss.v16i3.964

S. Chhabra, Ashutosh Kumar Singh

{"title":"Security Enhancement in Cloud Environment using Secure Secret Key Sharing","authors":"S. Chhabra, Ashutosh Kumar Singh","doi":"10.24138/jcomss.v16i3.964","DOIUrl":"https://doi.org/10.24138/jcomss.v16i3.964","url":null,"abstract":"Securing the data in distributed cloud system is considered one of the major concern for the cloud customers who faces security risks. The data leakage or data tampering are widely used by attackers to extract the private information of other users who shares the confidential data through virtualization. This paper presents Secure Secret Sharing (SSS) technique which is being recognized as one of the leading method to secure the sensitive data. It shares encrypted data over cloud and generated secret key is split into different parts distributed to qualified participants (Qn) only which is analyzed by malicious checkers. It verifies the clients based on their previous performances, whether these users proved to be authorized participant or not. The key computation is evaluated by the Key handler (KH) called trusted party which manages authorized control list, encryption/decryption and reconstruction of key shares. The Lagrange’s interpolation method is used to reconstruct the secret from shares. The experimental results shows that the proposed secure data sharing algorithm not only provides excellent security and performance, but also achieves better key management and data confidentiality than previous countermeasures. It improves the security by using secure VM placement and evaluated based on time consumption and probability computation to prove the efficacy of our algorithm. Experiments are performed on cloudsim based on following parameters i.e. time computation of key generation; response time and encryption/decryption. The experimental results demonstrate that this method can effectively reduce the risks and improves the security and time consumption upto 27.81% and 43.61% over existing algorithms.","PeriodicalId":38910,"journal":{"name":"Journal of Communications Software and Systems","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2020-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48085004","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: 7

Chicken Swarm Optimization for PTS based PAPR Reduction in OFDM Systems 基于PTS降低OFDM系统PAPR的鸡群优化算法

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Journal of Communications Software and Systems Pub Date : 2020-07-17 DOI: 10.24138/jcomss.v16i3.999

Saruti Gupta, A. Goel

引用次数: 1

Frequency Plan Optimization Based on Genetic Algorithms for Cellular Networks 基于遗传算法的蜂窝网络频率规划优化

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Journal of Communications Software and Systems Pub Date : 2020-07-09 DOI: 10.24138/jcomss.v16i3.1012

H. Megnafi

引用次数: 5