2012 Proceedings of IEEE Southeastcon最新文献

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DDoS and other anomalous web traffic behavior in selected countries 在选定国家/地区的DDoS和其他异常网络流量行为
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6197004
K. B. Banks, J. Blackstone, S. Perry, W. Patterson, Patricio Gonzalez des Valle, S. Mujica, C. Aedo, A. Sánchez, J. P. M. Andrade, J. A. R. Stuardo
{"title":"DDoS and other anomalous web traffic behavior in selected countries","authors":"K. B. Banks, J. Blackstone, S. Perry, W. Patterson, Patricio Gonzalez des Valle, S. Mujica, C. Aedo, A. Sánchez, J. P. M. Andrade, J. A. R. Stuardo","doi":"10.1109/SECON.2012.6197004","DOIUrl":"https://doi.org/10.1109/SECON.2012.6197004","url":null,"abstract":"Distributed Denial of Service attacks (DDoS) are coordinated efforts, by human or machine, to overwhelm web sites, and at a minimum, to cause them to shut down. Increasingly, the use of this type of malicious software has grown exponentially in the past decade, and despite considerable research, it has proven very difficult to identify, detect or prevent such attacks. Our current research attempts to analyze the frequency of such attacks in a variety of countries, and to develop an index to identify countries which may have the greatest risk of DDoS attacks.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128196267","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
Virtual and real laboratory for optical devices course in teaching telecommunications engineering 电信工程教学中光学器件课程的虚实实验室
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196915
S. Pérez-García, A. Beltrán-Hernández, S. Khotiaintsev
{"title":"Virtual and real laboratory for optical devices course in teaching telecommunications engineering","authors":"S. Pérez-García, A. Beltrán-Hernández, S. Khotiaintsev","doi":"10.1109/SECON.2012.6196915","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196915","url":null,"abstract":"We describe the design and implementation of a laboratory with virtual and real exercises for optical devices course. We have introduced such a laboratory in teaching telecommunications engineering at the National Autonomous University of Mexico. The laboratory complements the optional theoretical optical devices course of forty-eight (48) hours that we offer to the students of the next-to-last 8th semester of the aforementioned career. A combination of virtual and real exercises, and remote access to some real exercises allow us to provide effective laboratory training to a large number of students with limited quantity of real laboratory equipment.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128193329","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
Depth map extraction based on geometry 基于几何的深度图提取
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6197062
Di Zhao, Yannan Ren, Jiande Sun, Wei Liu, Ju Liu
{"title":"Depth map extraction based on geometry","authors":"Di Zhao, Yannan Ren, Jiande Sun, Wei Liu, Ju Liu","doi":"10.1109/SECON.2012.6197062","DOIUrl":"https://doi.org/10.1109/SECON.2012.6197062","url":null,"abstract":"This paper presents a novel depth map generation method based on geometric information. Our method divides a 2d image into two parts-the foreground and the background. Through extracting the predominant lines and vanishing point of the background, the background depth map is determined. Then we use this depth map as a `scalar' to measure the depth value of the foreground object. Finally, the depth map of the foreground and the background are integrated into one depth map by a depth fusion algorithm.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127376797","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
A packet loss tolerant algorithm for information hiding in voice over IP IP语音信息隐藏的丢包容忍算法
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196945
H. Neal, H. ElAarag
{"title":"A packet loss tolerant algorithm for information hiding in voice over IP","authors":"H. Neal, H. ElAarag","doi":"10.1109/SECON.2012.6196945","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196945","url":null,"abstract":"Steganography is the science of hiding information in such a way that an adversary wouldn't know it existed. As a result of research in this field, there are now many practical steganography tools for mediums that aren't processed in real time. However, research on real time mediums, for example Voice over Internet Protocol (VoIP), isn't as mature. While significant and ever-improving research has been done towards increasing throughput and decreasing signs of tampering in VoIP steganography, some research lacks important considerations that hinder development of practical tools. In this paper, we propose an algorithm that enables data hiding in G.711, the most commonly used voice codec for VoIP devices, while gracefully handling packet loss. We use important performance metrics to evaluate our algorithm, namely, throughput, noise-to-signal ratio and the Perceptual Evaluation of Speech Quality algorithm. We demonstrate that our algorithm performs well compared to other algorithms proposed in the literature in real world environments where packet loss is inevitable, by maintaining high throughput and good speech quality.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124192111","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
Low cost semi-autonomous sentry robot 低成本半自动哨兵机器人
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196937
Sam Shue, C. Hargrove, J. Conrad
{"title":"Low cost semi-autonomous sentry robot","authors":"Sam Shue, C. Hargrove, J. Conrad","doi":"10.1109/SECON.2012.6196937","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196937","url":null,"abstract":"This paper describes the planning, design, and implementation of a low cost, semi-autonomous sentry robot (Turret). The robot has an automatic nerf gun mounted on the top of an all-terrain mobile platform. The sensors used for target tracking are low cost infrared proximity sensors. The robot can be set into an autonomous sentry mode, in which it can track targets and fire at them automatically, or a controlled mode, for driving the turret to a new location. This design uses much more cost effective and readily available hardware and materials, and also provides an improved tracking mechanism.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115508167","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: 9
Real time reduction of HVAC noise using a FPGA 利用FPGA实时降低暖通空调噪声
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196893
P. Kasbekar, A. Wisler, I. Panahi
{"title":"Real time reduction of HVAC noise using a FPGA","authors":"P. Kasbekar, A. Wisler, I. Panahi","doi":"10.1109/SECON.2012.6196893","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196893","url":null,"abstract":"An important application of Active Noise Control (ANC) is to reduce noise produced by machinery in modern living places. We present an ANC system that is designed to cancel narrowband noise generated from the compressor of an HVAC (Heating, Ventilation, and Air-Conditioning) system in real time. To achieve cost effectiveness of the system, we propose a single-channel Feedback ANC implementation, which uses only a single speaker and a single microphone. The ANC algorithm is implemented on a NI 7833R Reconfigurable I/O (RIO) FPGA board. A leakage factor is required to ensure stability of the system because of the inherent quantization error in fixed-point implementation of ANC algorithms. To alleviate the effect of quantization error, the fixed-point length is increased from 24 bits to 32 bits, to improve the performance. By correctly choosing the leakage factor, the Leaky Feedback ANC implementation allows for stable reduction of the HVAC compressor noise ranging from 4.59 to 10.73 decibels (dB).","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116384029","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
Comparison of routing and network coding in undirected network group communications 无向网络组通信中路由与网络编码的比较
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196916
Yangyang Xu, I. Butun, R. Sankar, N. Sapankevych, J. Crain
{"title":"Comparison of routing and network coding in undirected network group communications","authors":"Yangyang Xu, I. Butun, R. Sankar, N. Sapankevych, J. Crain","doi":"10.1109/SECON.2012.6196916","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196916","url":null,"abstract":"Traditional method of solving group communications problem is by placing a super source with unlimited bandwidth to all sources. In this paper, we show that this method cannot guarantee the fairness within different sources for routing. Also in certain scenarios, the method can lead to wrong conclusion of network achieving higher throughput than it can actually deliver. Two algorithms are presented, one for routing and one for network coding to guarantee that each source has the same fairness and get the sub-optimal throughput for group communications in undirected networks. The throughputs achieved using either of these algorithms (one for routing only and one for network coding) are much better than any current widely-used IP multicast protocols. Between the two proposed algorithms, the algorithm for network coding can have throughput benefit in some scenarios but not always. Here, we show through simulation that network coding does not have constant throughput benefit in undirected networks in group communications scenario with the consideration of fairness within different sources.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127861867","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
Conduction in metallic core/shell nanoclusters 金属核/壳纳米团簇中的传导
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196990
G. Moorthy, K. Daneshvar
{"title":"Conduction in metallic core/shell nanoclusters","authors":"G. Moorthy, K. Daneshvar","doi":"10.1109/SECON.2012.6196990","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196990","url":null,"abstract":"The conducting properties of core/shell nanoclusters of two different materials - one with a metal core/semiconductor shell, and the other with a metal core/insulator shell have been investigated. Experiments carried out for the two samples under the same conditions demonstrate distinct variations in the conducting properties of both. At increasing temperatures, the metal/semiconductor core/shell sample exhibits a sharp increase in conductivity at certain threshold temperatures, as opposed to the metal/insulator structure sample that displays a gradual, almost exponential increase in conductivity. These results have been discussed in terms of standard models.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"243 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127898813","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
Comparative study of high voltage IGBTs with enhanced conductivity modulation 增强电导率调制的高压igbt的比较研究
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196955
K. Padmanabhan, P. Shea, Z. Shen
{"title":"Comparative study of high voltage IGBTs with enhanced conductivity modulation","authors":"K. Padmanabhan, P. Shea, Z. Shen","doi":"10.1109/SECON.2012.6196955","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196955","url":null,"abstract":"A new device structure for enhancing conductivity modulation in the Insulated Gate Bipolar Transistor (IGBT) is numerically studied. An N-type hole barrier layer and a deep P+ plug emitter tie are added to the conventional IGBT structure. It is observed that the addition of the P+ plug alone results in a reduction in switching power losses and no change in VCE(sat), however the avalanche breakdown voltage (BV) and short circuit ruggedness of the device are improved. A further 0.4 V improvement in VCE(sat) is observed when the P+ plug is implemented in conjunction with an N hole barrier. This is accomplished without the usual degradation of BV and ruggedness normally associated with other N hole barrier structures. The design space of the new IGBT structure is thoroughly characterized using 2-D TCAD simulation.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124461049","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
A novel cost function for parameters estimation in oscillatory biochemical systems 一种用于振荡生化系统参数估计的新型代价函数
2012 Proceedings of IEEE Southeastcon Pub Date : 2012-03-15 DOI: 10.1109/SECON.2012.6196978
S. Nabavi, C. M. Williams
{"title":"A novel cost function for parameters estimation in oscillatory biochemical systems","authors":"S. Nabavi, C. M. Williams","doi":"10.1109/SECON.2012.6196978","DOIUrl":"https://doi.org/10.1109/SECON.2012.6196978","url":null,"abstract":"Oscillatory pathways are among the most important classes of biochemical systems with examples ranging from circadian rhythms and cell cycle maintenance. Mathematical modeling of these highly interconnected biochemical networks is needed to meet numerous objectives such as investigating, predicting and controlling the dynamics of these systems. Identifying the kinetic rate parameters is essential for fully modeling these and other biological processes. These kinetic parameters, however, cannot be measured directly and most of them have to be estimated using parameter fitting techniques. One of the issues with estimating kinetic parameters in oscillatory systems is the irregularities in the Least Square (LS) cost function surface used to estimate these parameters, which is caused by the periodicity of the measurements. These irregularities result in numerous local minima, which limit the performance of even some of the most robust global optimization algorithms. We proposed a cost function to address these issues by integrating temporal information with periodic information embedded in the measurements. This new cost function has better surface properties leading to fewer local minima and better performance of global optimization algorithms. We verified for two oscillatory biochemical systems that our method results in an increased ability to estimate accurate kinetic parameters as compared to the traditional LS cost function. This will eventually lead to biochemical models that are more precise, predictable and controllable.","PeriodicalId":187091,"journal":{"name":"2012 Proceedings of IEEE Southeastcon","volume":"606 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132218909","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
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