Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866696
Boriga Radu, Dascalescu Ana Cristina, Priescu Iustin, Filis Cristina
In this paper we present a new fast chaos-based algorithm for generating random permutations, along with it usage in image scrambling. The proposed algorithm has a hybrid character, given by the use of random values generated by two chaotic maps with deterministic ones. The performed analysis proves that the proposed algorithm it's fast and secure, being suitable for real-time image scrambling.
{"title":"A new fast chaos-based image scrambling algorithm","authors":"Boriga Radu, Dascalescu Ana Cristina, Priescu Iustin, Filis Cristina","doi":"10.1109/ICCOMM.2014.6866696","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866696","url":null,"abstract":"In this paper we present a new fast chaos-based algorithm for generating random permutations, along with it usage in image scrambling. The proposed algorithm has a hybrid character, given by the use of random values generated by two chaotic maps with deterministic ones. The performed analysis proves that the proposed algorithm it's fast and secure, being suitable for real-time image scrambling.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126486291","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}
Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866726
Dan Sava, A. Vlad, R. Tataru
This paper presents a new way of using chaotic maps for the generation of pseudorandom sequences of good statistical properties, aiming to use them in cryptographical applications. The proposed pseudorandom sequence generator is a practical zero-memory information source, with a discrete set of possible values of varying size, obtained through successive random variable transformations applied to the chaotic map. We exemplify on a particular case of the generalized Hénon map. The paper also presents an example of using a pseudorandom chaotic sequence in an enciphering chain, applied to images. The chaotic sequences are studied through conventional statistical methods and also using the NIST test suite. They satisfy the respective randomness requirements.
{"title":"A new type of keystream generator based on chaotic maps: Illustration on a Hénon generalized map","authors":"Dan Sava, A. Vlad, R. Tataru","doi":"10.1109/ICCOMM.2014.6866726","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866726","url":null,"abstract":"This paper presents a new way of using chaotic maps for the generation of pseudorandom sequences of good statistical properties, aiming to use them in cryptographical applications. The proposed pseudorandom sequence generator is a practical zero-memory information source, with a discrete set of possible values of varying size, obtained through successive random variable transformations applied to the chaotic map. We exemplify on a particular case of the generalized Hénon map. The paper also presents an example of using a pseudorandom chaotic sequence in an enciphering chain, applied to images. The chaotic sequences are studied through conventional statistical methods and also using the NIST test suite. They satisfy the respective randomness requirements.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133130611","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}
Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866729
A. Mitrea, A. Vlad, Octavian Hodea, R. Dragomir
The experimental analysis focused on a corpus of literary works - novels and short stories (107 books) - comprising about 12.7 million words, obtained by bringing together two different collections of writings of similar length. The main objective was to identify the common words occurring in each of the books constituting the corpus as a whole, in each of the sub-corpora organized per author and also in each sub-collection of texts.
{"title":"A study on the common words found in different literary Romanian corpora","authors":"A. Mitrea, A. Vlad, Octavian Hodea, R. Dragomir","doi":"10.1109/ICCOMM.2014.6866729","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866729","url":null,"abstract":"The experimental analysis focused on a corpus of literary works - novels and short stories (107 books) - comprising about 12.7 million words, obtained by bringing together two different collections of writings of similar length. The main objective was to identify the common words occurring in each of the books constituting the corpus as a whole, in each of the sub-corpora organized per author and also in each sub-collection of texts.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126300945","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}
Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866742
R. Craciunescu, C. Voicu, Alexandru Vulpe, S. Halunga
Multi-Carrier Code Division Multiple Access (MC-CDMA) is a multiple access technique that inherits the features of both OFDM and CDMA. The current paper proposes an evaluation of MC-CDMA performances when image transmission is involved. The performances are evaluated both in terms of BER vs SNR and in terms of image quality metrics.
{"title":"Performance analysis of MC-CDMA system when image transmission is involved","authors":"R. Craciunescu, C. Voicu, Alexandru Vulpe, S. Halunga","doi":"10.1109/ICCOMM.2014.6866742","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866742","url":null,"abstract":"Multi-Carrier Code Division Multiple Access (MC-CDMA) is a multiple access technique that inherits the features of both OFDM and CDMA. The current paper proposes an evaluation of MC-CDMA performances when image transmission is involved. The performances are evaluated both in terms of BER vs SNR and in terms of image quality metrics.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"80 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125921254","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}
Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866679
A. L. Balan, N. Alexandru
Motivated by the recent and rapid development in high speed data transmission systems for optical communications, this paper analyses a class of inter-symbol interference (ISI) free pulses for transmission over intensity-modulated channels. The future trend will probably migrate toward low-complexity and cost effective systems. Therefore, recent work has focused on transmission over Intensity-Modulated Channels. This article addresses the bandwidth management problem in optical fiber communications. The aim is to give a guideline for the design of the new inter-symbol interference free pulses used for optical transmission, while maintaining acceptable service reliability.
{"title":"Inter-symbol interference free pulses for transmission over Intensity-Modulated Channels","authors":"A. L. Balan, N. Alexandru","doi":"10.1109/ICCOMM.2014.6866679","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866679","url":null,"abstract":"Motivated by the recent and rapid development in high speed data transmission systems for optical communications, this paper analyses a class of inter-symbol interference (ISI) free pulses for transmission over intensity-modulated channels. The future trend will probably migrate toward low-complexity and cost effective systems. Therefore, recent work has focused on transmission over Intensity-Modulated Channels. This article addresses the bandwidth management problem in optical fiber communications. The aim is to give a guideline for the design of the new inter-symbol interference free pulses used for optical transmission, while maintaining acceptable service reliability.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122708027","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}
Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866734
P. Cotae, Suresh Regmi, I. S. Moskowitz
In this paper, we investigated different methods for blind Doppler shift estimation and compensation for a single carrier in underwater acoustic wireless sensor networks. We analyzed the data collected from our experiments using non-data aided (blind) techniques such as Power Spectrum Analysis, Autocorrelation, and Squaring Time Phase Recovery methods in order to estimate the Doppler shift in collaborative distributed underwater sensor networks. Detailed experimental and simulated results based on second order cyclostationary features of the received signals are presented.
{"title":"Non-data aided doppler shift estimation for underwater acoustic communication","authors":"P. Cotae, Suresh Regmi, I. S. Moskowitz","doi":"10.1109/ICCOMM.2014.6866734","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866734","url":null,"abstract":"In this paper, we investigated different methods for blind Doppler shift estimation and compensation for a single carrier in underwater acoustic wireless sensor networks. We analyzed the data collected from our experiments using non-data aided (blind) techniques such as Power Spectrum Analysis, Autocorrelation, and Squaring Time Phase Recovery methods in order to estimate the Doppler shift in collaborative distributed underwater sensor networks. Detailed experimental and simulated results based on second order cyclostationary features of the received signals are presented.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122503695","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}
Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866757
Alina Sultana, I. Dumitrache, Mihai Vocurek, M. Ciuc
Dermoscopy is the primary tool used for pigmented skin lesion diagnosis. Despite the use of this relative new clinical method dermoscopy based, diagnose is still subjective and the diagnosis detection accuracy is about 75-80%. In this paper we present several enhancement pre-processing techniques applied on dermatoscopic images, such as black frame removal and hair removal in an automatically manner. We have tested our algorithms on 45 dermoscopic images and compared the automated enhancement methods results with other existing methods.
{"title":"Removal of artifacts from dermatoscopic images","authors":"Alina Sultana, I. Dumitrache, Mihai Vocurek, M. Ciuc","doi":"10.1109/ICCOMM.2014.6866757","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866757","url":null,"abstract":"Dermoscopy is the primary tool used for pigmented skin lesion diagnosis. Despite the use of this relative new clinical method dermoscopy based, diagnose is still subjective and the diagnosis detection accuracy is about 75-80%. In this paper we present several enhancement pre-processing techniques applied on dermatoscopic images, such as black frame removal and hair removal in an automatically manner. We have tested our algorithms on 45 dermoscopic images and compared the automated enhancement methods results with other existing methods.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130582409","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}
Pub Date : 2014-07-28DOI: 10.1109/ICCOMM.2014.6866713
I. Ungurean, N. Gaitan, V. Gaitan
Currently, there are significant changes in industrial process control, intelligent building control and automation technologies under pressure to reduce operating costs and to integrate important advances in telecommunications and software. The software has become an essential factor in production and enterprise-wide systems. Internet connection has fundamentally changed the arrangements for monitoring and control, and the use of open/public standards and personal computer systems (PCs, tablets, smart phones) bring significant benefits to their users and producers. This led to the definition of Industry 4.0 that brings the concept of the Internet of Things in the industry. In this article, we want to present an Internet of Things architecture based on OPC.NET specifications which can be used in both industrial environments and smart building.
{"title":"An IoT architecture for things from industrial environment","authors":"I. Ungurean, N. Gaitan, V. Gaitan","doi":"10.1109/ICCOMM.2014.6866713","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866713","url":null,"abstract":"Currently, there are significant changes in industrial process control, intelligent building control and automation technologies under pressure to reduce operating costs and to integrate important advances in telecommunications and software. The software has become an essential factor in production and enterprise-wide systems. Internet connection has fundamentally changed the arrangements for monitoring and control, and the use of open/public standards and personal computer systems (PCs, tablets, smart phones) bring significant benefits to their users and producers. This led to the definition of Industry 4.0 that brings the concept of the Internet of Things in the industry. In this article, we want to present an Internet of Things architecture based on OPC.NET specifications which can be used in both industrial environments and smart building.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121696524","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}
Pub Date : 2014-05-29DOI: 10.1109/ICCOMM.2014.6866708
A. Kovacs, Andreea Nicolcioiu, J. Arhip, G. Cașu
This paper presents the design and implementation of a remote data logger based on GPRS connection, used for weather forecasting and statistical deduction of climate. The device presented in this paper is an interface between the weather station and a remote operator. The system is based on a microcontroller, a cellular engine, an SD card and a real time clock and it is able to measure, calculate, store and transmit weather parameters.
{"title":"Design and implementation of a GPRS remote data logger for weather forecasting","authors":"A. Kovacs, Andreea Nicolcioiu, J. Arhip, G. Cașu","doi":"10.1109/ICCOMM.2014.6866708","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866708","url":null,"abstract":"This paper presents the design and implementation of a remote data logger based on GPRS connection, used for weather forecasting and statistical deduction of climate. The device presented in this paper is an interface between the weather station and a remote operator. The system is based on a microcontroller, a cellular engine, an SD card and a real time clock and it is able to measure, calculate, store and transmit weather parameters.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115334875","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}
Pub Date : 2014-05-29DOI: 10.1109/ICCOMM.2014.6866714
A. Pastrav, T. Palade, E. Puschita
In Romania, the LTE infrastructure is currently in development. This paper provides an objective QoS and QoE evaluation of the VoIP performances in an LTE cell deployed in a 3D-modeled urban area. The simulation results provide useful insights for the operators regarding an efficient LTE network planning considering the characteristics of the area, the number of users per cell and the VoIP performance requirements.
{"title":"VoLTE performances in a 3D modeled campus area","authors":"A. Pastrav, T. Palade, E. Puschita","doi":"10.1109/ICCOMM.2014.6866714","DOIUrl":"https://doi.org/10.1109/ICCOMM.2014.6866714","url":null,"abstract":"In Romania, the LTE infrastructure is currently in development. This paper provides an objective QoS and QoE evaluation of the VoIP performances in an LTE cell deployed in a 3D-modeled urban area. The simulation results provide useful insights for the operators regarding an efficient LTE network planning considering the characteristics of the area, the number of users per cell and the VoIP performance requirements.","PeriodicalId":366043,"journal":{"name":"2014 10th International Conference on Communications (COMM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125199933","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}
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