2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)最新文献_第2页

Cognitive Relay Nodes for airborne LTE emergency networks 机载LTE应急网络的认知中继节点

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723940

A. Al-Hourani, K. Sithamparanathan

引用次数: 32

A link quality indicator for analog FM transmission systems 模拟调频传输系统的链路质量指示器

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723964

J. Brendel, A. Schmidt, G. Fischer

引用次数: 1

The utilization of neural networks to radiation pattern of microstrip antenna formation 神经网络在微带天线形成辐射方向图中的应用

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723953

M. Wnuk, L. Nowosielski, M. Bugaj

引用次数: 4

A novel network simulator based on stochastic spatial models 一种基于随机空间模型的网络模拟器

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723927

Andrey Skrebstov, Z. Bai, G. Bruck, P. Jung

{"title":"A novel network simulator based on stochastic spatial models","authors":"Andrey Skrebstov, Z. Bai, G. Bruck, P. Jung","doi":"10.1109/ICSPCS.2013.6723927","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723927","url":null,"abstract":"Wireless ad hoc networks have been of significant interest in the communications engineering field within the last decades. Due to their flexibility and relatively low infrastructure and front end expenses, wireless ad hoc networks promise a wide application spectrum. To understand their expected performance, interference limited scenarios must be considered and an interference analysis based on the spatial distribution of the network nodes is necessary. This analysis must cover the randomness of this spatial distribution. The authors have considered the stochastic geometry tools as basic means for this analysis. The randomness of the individual spatial distribution realizations can thus be decoupled from the interference analysis by collecting the statistics over multiple particular spatial network distributions, which eases the analysis. In this manuscript the authors illustrate a simulation framework for the investigation of the performance of wireless ad hoc networks. The simulation results for the various spatial node densities are discussed for both distribution types by taking the interference limited scenarios into account. Also, theoretical performance bounds are shown which allow the verification of the stochastic simulation.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116668469","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

Adaptable N-gram classification model for data leakage prevention 用于数据泄漏预防的自适应n图分类模型

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723919

Sultan Alneyadi, E. Sithirasenan, V. Muthukkumarasamy

{"title":"Adaptable N-gram classification model for data leakage prevention","authors":"Sultan Alneyadi, E. Sithirasenan, V. Muthukkumarasamy","doi":"10.1109/ICSPCS.2013.6723919","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723919","url":null,"abstract":"Data confidentiality, integrity and availability are the ultimate goals for all information security mechanisms. However, most of these mechanisms do not proactively protect sensitive data; rather, they work under predefined policies and conditions to protect data in general. Few systems such as anomaly-based intrusion detection systems (IDS) might work independently without much administrative interference, but with no dedication to sensitivity of data. New mechanisms called data leakage prevention systems (DLP) have been developed to mitigate the risk of sensitive data leakage. Current DLPs mostly use data fingerprinting and exact and partial document matching to classify sensitive data. These approaches can have a serious limitation because they are susceptible to data misidentification. In this paper, we investigate the use of N-grams statistical analysis for data classification purposes. Our method is based on using N-grams frequency to classify documents under distinct categories. We are using simple taxicap geometry to compute the similarity between documents and existing categories. Moreover, we examine the effect of removing the most common words and connecting phrases on the overall classification. We are aiming to compensate the limitations in current data classification approaches used in the field of data leakage prevention. We show that our method is capable of correctly classifying up to 90.5% of the tested documents.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132561125","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: 12

Comparison of spherical harmonics based 3D-HRTF functional models 基于球面谐波的3D-HRTF功能模型的比较

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723906

R. Kennedy, Wen Zhang, T. Abhayapala

{"title":"Comparison of spherical harmonics based 3D-HRTF functional models","authors":"R. Kennedy, Wen Zhang, T. Abhayapala","doi":"10.1109/ICSPCS.2013.6723906","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723906","url":null,"abstract":"The modeling performance of three models for the 3D Head Related Transfer Function (HRTF) are compared. One of these models appeared recently in the literature whilst the other two models are novel. All models belong to the class of functional models whereby the 3D-HRTF is expressed as an expansion in terms of basis functions, which are functions of azimuth, elevation, radial distance and frequency. The expansion coefficients capture the 3D-HRTF individualization. The models differ in the choice of basis functions and the degree of orthogonality that is possibly given the constraint that for each frequency the HRTF needs to satisfy the Helmholtz wave equation. One model introduced in this paper is designed to provide a functional representation that is orthonormal on a sphere at some nominal radius and approximately so around that nominal radius. This model is shown to be superior to the other two in being able to reconstruct most efficiently the 3D-HRTF derived from a spherical head 3D-HRTF model. For all cases we show that there is a unified technique to estimate expansion coefficients from measurements taken on a sphere of arbitrary radius.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"33 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133184117","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: 2

Joint interference alignment and IB-DFE scheme for MC-CDMA systems MC-CDMA系统联合干扰对准与IB-DFE方案

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723951

Adão Silva, R. Dinis, J. Moreira, A. Gameiro

引用次数: 0

Measurements and characterizations of spatial and temporal TOA based ranging for indoor WLAN channels 基于空间和时间TOA的室内无线局域网信道测距的测量和表征

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723907

Ebtesam Almazrouei, N. Alsindi, S. Al-Araji, N. Ali, Z. Chaloupka, J. Aweya

{"title":"Measurements and characterizations of spatial and temporal TOA based ranging for indoor WLAN channels","authors":"Ebtesam Almazrouei, N. Alsindi, S. Al-Araji, N. Ali, Z. Chaloupka, J. Aweya","doi":"10.1109/ICSPCS.2013.6723907","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723907","url":null,"abstract":"Indoor localization has gained considerable attention in the last decade. Different approaches and techniques have been proposed to solve the indoor location problem from received signal strength (RSS) fingerprinting to time of arrival (TOA) based ultra wideband (UWB) systems. However it is highly desirable for the solution to take advantage of existing network infrastructure such as WLAN. RSS based localization for WLAN cannot provide the required accuracy and recently TOA based ranging approaches have been proposed in IEEE 802.11v. The performance of TOA ranging in WLAN channels has not been investigated and characterized in the literature. In this paper, to the best of the authors' knowledge, the first experimental measurement and analysis to characterize and model the TOA ranging in indoor environment is introduced. Using the well-known frequency domain measurement system, the ranging error performance in line of sight (LOS) and non-line of sight (NLOS) environments is investigated. In addition the performance in time-varying channels is analyzed, where the impact of human induced motion (small-scale fading) on the accuracy of TOA estimation is investigated. The results indicate that for a given location the time-varying error can be modeled as a normal distribution. The mean and the variance vary spatially and are directly related to the movements and the multipath structure (open space, cluttered environment, etc.).","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130351249","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

Source localization and tracking in a Cognitive Radio environment consisting of frequency and spatial mobility 由频率和空间移动组成的认知无线电环境中的源定位和跟踪

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723982

A. Adams, M. Tummala, J. McEachen, James W. Scrofani

{"title":"Source localization and tracking in a Cognitive Radio environment consisting of frequency and spatial mobility","authors":"A. Adams, M. Tummala, J. McEachen, James W. Scrofani","doi":"10.1109/ICSPCS.2013.6723982","DOIUrl":"https://doi.org/10.1109/ICSPCS.2013.6723982","url":null,"abstract":"Source localization and tracking of a Cognitive Radio (CR) is a significant challenge because of the dynamic opportunistic behavior of the radio across the spatial, frequency, and temporal domains. For any localization or tracking scheme to be effective, it must be able to adapt as a CR adapts to its surroundings. The extended semi range-based (ESRB) localization scheme was proposed as a solution to the aforementioned problem, but resulted in considerable communication overhead and storage requirements within the wireless sensor network (WSN) as well as poor reliability due to frequent divergence of the non-linear least squares method (NLSM) in the localization process. Furthermore, tracking a mobile CR was accomplished in a brute force manner by repeating the same positioning technique without taking advantage of prior position estimates. In this paper, the ESRB localization scheme is modified to incorporate the Kalman filter as a recursive estimator to reduce the burden placed on the WSN and integrate an efficient means to estimate the position and velocity of a mobile CR over time. The proposed modification is modeled in the MATLAB programming language, and its efficacy is demonstrated through simulation. It is shown that the Kalman filter is an appropriate recursive estimator for use in the ESRB localization scheme, while accounting for both frequency and spatial mobility inherent in the CR environment.","PeriodicalId":294442,"journal":{"name":"2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114635363","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

Fourier based recovery of anisotropic scaling parameters in images 基于傅里叶的图像各向异性尺度参数恢复

2013, 7th International Conference on Signal Processing and Communication Systems (ICSPCS) Pub Date : 2013-12-01 DOI: 10.1109/ICSPCS.2013.6723969

R. González

引用次数: 0