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2014 International Conference on Advanced Technologies for Communications (ATC 2014)最新文献

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RTL implementation for a specific ALU of the 32-bit VLIW DSP processor core RTL实现针对特定ALU的32位VLIW DSP处理器内核
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043417
Khoi-Nguyen Le-Huu, Anh-Vu Dinh-Duc, Quoc-Minh Dang-Do, Trong-Tu Bui
{"title":"RTL implementation for a specific ALU of the 32-bit VLIW DSP processor core","authors":"Khoi-Nguyen Le-Huu, Anh-Vu Dinh-Duc, Quoc-Minh Dang-Do, Trong-Tu Bui","doi":"10.1109/ATC.2014.7043417","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043417","url":null,"abstract":"Digital Signal Processors (DSPs) have shown the great strengths in digital signal processing algorithms such as digital filtering and Fourier analysis. This work is about an implementation for a specific computational unit based on the proposed RISC instruction set architecture (ISA) of 32-bit VLIW Fixed-point DSP processor core presented in our previous work. The computational unit is designed to be flexible for 32-bit/16-bit/8-bit data computations. The implementation is described from top-level to gate-level design and then it is verified to function correctly not only in Modelsim software but also on Altera Cyclone II (2C35) FPGA board.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128480985","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
A survey of performance improvement methods for free-space optical communication systems 自由空间光通信系统性能改进方法综述
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043491
H. Pham, N. Dang, Lam T. Vu, Hieu T. Bui
{"title":"A survey of performance improvement methods for free-space optical communication systems","authors":"H. Pham, N. Dang, Lam T. Vu, Hieu T. Bui","doi":"10.1109/ATC.2014.7043491","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043491","url":null,"abstract":"Free-space optical communication (FSO) is a line-of-sight (LOS) technology that enables data transmission based on the propagation of light in free space. Compared to radio frequency (RF) communication systems, FSO ones provide high data rates, unregulated bandwidth, high security, and low power. Therefore, FSO systems are rapidly gaining interest as an effective means of transferring data at high rates over short distances. However, FSO still faces many challenges, including weather-dependent atmospheric attenuation, atmospheric turbulence, and misalignment fading (or pointing error). In this paper, we present some of the exciting research approaches that have been suggested to evaluate and improve the performance of FSO systems. The principle as well as the advantages and disadvantages of each improvement method will be analyzed. In addition, we outline some future research challenges and opportunities.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134458950","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
Measurement procedure to determine SAR of multiple antenna transmitters using scalar electric field probes 测量程序，以确定多天线发射机的SAR使用标量电场探头
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043355
Dinh Thanh Le, L. Hamada, Soichi Watanabe
{"title":"Measurement procedure to determine SAR of multiple antenna transmitters using scalar electric field probes","authors":"Dinh Thanh Le, L. Hamada, Soichi Watanabe","doi":"10.1109/ATC.2014.7043355","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043355","url":null,"abstract":"This paper presents a fast estimation technique and a measurement procedure for measurement systems using scalar electric field probes to determine the Specific Absorption Rate (SAR) of multiple antenna transmitting devices. For devices with N-element antenna, measurements for N(N - 1) + 1 pre-known relative phase combinations of the antennas are required in order to evaluate SAR for any other phase combinations. The technique provides accurate estimated SAR, and is able to identify the maximum SAR corresponding to particular phase combinations of the sources.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132528822","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
Optimized transceivers for interference alignment in MIMO interference channels 在MIMO干扰信道中优化的干扰对准收发器
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043348
H. H. Kha
{"title":"Optimized transceivers for interference alignment in MIMO interference channels","authors":"H. H. Kha","doi":"10.1109/ATC.2014.7043348","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043348","url":null,"abstract":"This paper is concerned with the optimal transceiver design in flat-fading multiple-input multiple-output (MIMO) interference channels. Interference alignment (IA) is recently known as an emerging technique to obtain the maximum total degree of freedom. Finding the transceiver matrices for perfect IA is mathematically challenging since the interference alignment problems are highly nonlinear and nonconvex. Interference leakage minimization and signal to noise plus interference ratio (SINR) maximization methods were developed to suppress the interference from the undesired users. However, most of previous works commonly assume that the equal power is allocated to each user and each stream. In this paper, we develop an iterative optimization algorithm to optimize power allocation to each stream. The simulation results indicate that the proposed algorithm offers a higher sum-rate than the interference leakage minimization method.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121034541","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
A robust and flexible license plate detection method 一种鲁棒灵活的车牌检测方法
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043406
Thanh-Sach Le, Van-Nhan Tran, K. Hamamoto
{"title":"A robust and flexible license plate detection method","authors":"Thanh-Sach Le, Van-Nhan Tran, K. Hamamoto","doi":"10.1109/ATC.2014.7043406","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043406","url":null,"abstract":"This paper presents a new license plate detection method based on the Canny edge detection and Sauvola binarization combine with Connected Components Analysis (CCA) and edge dilation. The proposed method was tested with 944 images in many different weather conditions and many different sizes of plates with only one configuration for all. We also build a ground-truth for each images and base on this to measure O, E factor. If the O, E factor satisfied the condition we will have a right result and vice verse. The right result in process was 921 over 944 images (97.56%).","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124815884","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
Indoor localization system using passive UHF RFID tag and multi-antennas 室内定位系统采用无源超高频RFID标签和多天线
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043421
Thi-Hao Dao, M. Le, Quoc-Cuong Nguyen
{"title":"Indoor localization system using passive UHF RFID tag and multi-antennas","authors":"Thi-Hao Dao, M. Le, Quoc-Cuong Nguyen","doi":"10.1109/ATC.2014.7043421","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043421","url":null,"abstract":"This paper presents a study on the indoor localization system using the passive UHF RFID technology. Positions of multi-antennas are designed according to the Triangular model to narrow the location area of object tags. Major parts as Path Loss models, calibration method, localization algorithm and proposed methodology will be discussed in detail. The orientation between antennas and calibrated Path Loss models are used in improving the localization quality. Besides, the accuracy is increased by combining indoor Path Loss models with Triangular technique.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126148099","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
Influence of lens size and shape on the performance of a terahertz traveling-wave stripline dipole antenna 透镜尺寸和形状对太赫兹行波带状线偶极子天线性能的影响
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043423
T. Nguyen, ThanhTuan Nguyen, Le Khoa Dang, F. Rotermund, I. Park
{"title":"Influence of lens size and shape on the performance of a terahertz traveling-wave stripline dipole antenna","authors":"T. Nguyen, ThanhTuan Nguyen, Le Khoa Dang, F. Rotermund, I. Park","doi":"10.1109/ATC.2014.7043423","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043423","url":null,"abstract":"In this paper, the influence of a substrate lens made of high-permittivity material on the overall performance of a traveling-wave stripline dipole antenna is presented. Input impedance and radiation characteristics of the antenna are fully investigated over a broad frequency range up to 5.0 THz. The results show that the lens shape represented by the ratio of the extension length to the lens radius primarily determines the best possible antenna gain and radiation spectral bandwidth. The antenna gain response exhibits an increased level of sensitivity to the lens shape as the lens size increases, and this is particularly important when it comes to optimizing large substrate lenses.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125005844","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
A novel asynchronous first-in-first-out adapting to multi-synchronous network-on-chips 一种适应多同步片上网络的新型异步先进先出算法
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043413
Thi-Thuy Nguyen, Xuan-Tu Tran
{"title":"A novel asynchronous first-in-first-out adapting to multi-synchronous network-on-chips","authors":"Thi-Thuy Nguyen, Xuan-Tu Tran","doi":"10.1109/ATC.2014.7043413","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043413","url":null,"abstract":"The integration of a variety of IP cores into a single chip to meet the high demand of new applications leads to many challenges in timing issues, especially the interface between different clock domains. Globally Asynchronous, Locally Synchronous (GALS) approach addresses these challenges by dividing a chip into several independent subsystems working with different clock signals. In multi-synchronous Network-on-Chip (NoC) based on GALS architecture, the network routers run with different frequencies, so the problem is how to transfer data safely and efficiently between them. In order to build a synchronization unit to tackle this problem, in this paper, we propose a novel efficient asynchronous First-In-First-Out architecture targeting to multi-synchronous NoCs. Token ring structure, register-based memory, and modified Asynchronous Assertion - Synchronous De-assertion techniques are applied to improve the performance of the proposed asynchronous FIFO. After simulating and verifying the design, we have implemented our asynchronous FIFO architecture with CMOS 180nm technology from AMS. Implementation results are analyzed and compared with previous works to show the strong points of our design.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121596390","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: 8
Low-power and high-performance design for cryptosystem using power aware and pipeline techniques 使用功率感知和管道技术的低功耗和高性能密码系统设计
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043352
M. Dam, Van-Cuong Nguyen, Trong-Tuan Nguyen, Thang-Dong Tran Le
{"title":"Low-power and high-performance design for cryptosystem using power aware and pipeline techniques","authors":"M. Dam, Van-Cuong Nguyen, Trong-Tuan Nguyen, Thang-Dong Tran Le","doi":"10.1109/ATC.2014.7043352","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043352","url":null,"abstract":"It has been a decade since the National Institute of Standards and Technology (NIST) has selected the Rijndael algorithm as the Advanced Encryption Standard (AES). Since then, AES becomes the new block cipher standard of US government. A couple of years ago, with the shift of the technological trend towards the power aware system design, low power AES architectures gain importance over area and performance oriented designs. In this study, we proposed a low power design called power aware technique for cryptosystem to reduce the power consumption while promising to enhance the level of security and achieve the high performance that adapts its self to the applications with real time requirement.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114850126","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
A cooperative spectrum sensing method for sensing under noise uncertainty and interference 一种噪声不确定和干扰下的协同频谱传感方法
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043384
Chunyi Song, Mingtuo Zhou, Pin-Hsun Lin, H. Harada, Dinh Chi Hieu
{"title":"A cooperative spectrum sensing method for sensing under noise uncertainty and interference","authors":"Chunyi Song, Mingtuo Zhou, Pin-Hsun Lin, H. Harada, Dinh Chi Hieu","doi":"10.1109/ATC.2014.7043384","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043384","url":null,"abstract":"Cooperative spectrum sensing (CSS) achieves spatial diversity and is used to combat shadowing and fading in sensing. In reality, spectrum sensing in TV band may also face challenges caused by interference from secondary users (SU). Unfortunately, this issue has not yet been sufficiently discussed. In this work, we propose a CSS to mitigate impact of SU interference and maintain robust sensing. After discussing the reality that spectrum sensing in TV band could suffer SU interference, we describe a sensing scenario that truly exists. Under the scenario, sensing is conducted by IEEE 802.22 standard compliant devices for detecting TV signal in an area with some other heterogeneous SU networks, such as IEEE 802.11af network, operating in nearby. The proposed CSS is conducted by selected sensors and detects instant power change between two consecutive sensing durations. Computer simulation is conducted to verify novelty of the proposed CSS in mitigating impact of noise uncertainty and SU interference.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121869441","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
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