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

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A novel design of highly nonlinear golden spiral Ge-doped core photonic crystal fiber for supercontinum light sources application 一种用于超连续光源的高非线性金螺旋掺锗芯光子晶体光纤
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043474
P. Thai, Thanh Tung Pham, M. Hossain, N. H. Hai
{"title":"A novel design of highly nonlinear golden spiral Ge-doped core photonic crystal fiber for supercontinum light sources application","authors":"P. Thai, Thanh Tung Pham, M. Hossain, N. H. Hai","doi":"10.1109/ATC.2014.7043474","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043474","url":null,"abstract":"This paper presents a design of an Index-guiding Fiber using air holes arranged in Golden spiral lattice and a higher refractive index Germania (GeO2) core (GGS-PCF), with all normal group velocity dispersion (GVD) and high nonlinear coefficient to generate light sources based on Supercontinum Generation. By placing a Ge-rod inside, near the center of the core, we increase the nonlinear coefficient to 108 W-1km-1 at 1.55μm. In Simulation, we used Finite Element Method (FEM) with a circular Perfect Matched Layer boundary (PML) to calculate the electric field and modal effective index. Then the process of solving nonlinear Schrodinger equation was studied to obtain spectrum property after propagating picosecond sech2 pulses through 80m of fiber length. And the result has shown that this GGS-PCF can be usefully exploited in light source applications.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"90 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":"133512334","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
Cross-talk mitigation using all optical signal processing in WDM-PON with re-modulation approach WDM-PON重调制全光信号处理的串扰抑制
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043362
Thai Pham Quang
{"title":"Cross-talk mitigation using all optical signal processing in WDM-PON with re-modulation approach","authors":"Thai Pham Quang","doi":"10.1109/ATC.2014.7043362","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043362","url":null,"abstract":"Cross-talk mitigation in WDM-PON using re-modulation approach is presented in this paper. Utilizing optical NOT and OR subsystems, the proposed method has been able to significantly improve system performance in term of bit error rate (BER). Moreover, the proposed method could be used for both two-level and multi-level line codes.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"23 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":"133798711","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 high-speed unsigned 32-bit multiplier based on booth-encoder and wallace-tree modifications 基于展位编码器和华莱士树修改的高速无符号32位乘法器
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043485
Xuan-Vy Luu, Trong-Thuc Hoang, Trong-Tu Bui, Anh-Vu Dinh-Duc
{"title":"A high-speed unsigned 32-bit multiplier based on booth-encoder and wallace-tree modifications","authors":"Xuan-Vy Luu, Trong-Thuc Hoang, Trong-Tu Bui, Anh-Vu Dinh-Duc","doi":"10.1109/ATC.2014.7043485","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043485","url":null,"abstract":"The delay of the multiplier plays a critical role in many high-speed implementations and processors such as RISC, DSP, and image processing cores, etc. In this paper, a design of unsigned 32-bit multiplier is proposed, aiming to achieve the best timing performance with an appropriate area. The proposed architecture consists of a modified Radix-4 Booth encoder, a modified Wallace Tree adder, and a Carry Look Ahead adder. The design has been verified successfully on DE2-115 and then synthesized to ASIC implementation. The FPGA-based experimental result shows that it has the resources of 1788 ALUTs. The synthesized result occupies an area of 58.28 mm2 with 4.13 ns total delay (i.e. 242.13MHz maximum frequency).","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"78 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":"115388727","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: 20
Smartphone-based pedestrian dead reckoning and orientation as an indoor positioning system 基于智能手机的行人航位推算和定位室内定位系统
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043402
Tinh Do-Xuan, Vinh Tran-Quang, T. Bui-Xuan, Vinh Vu-Thanh
{"title":"Smartphone-based pedestrian dead reckoning and orientation as an indoor positioning system","authors":"Tinh Do-Xuan, Vinh Tran-Quang, T. Bui-Xuan, Vinh Vu-Thanh","doi":"10.1109/ATC.2014.7043402","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043402","url":null,"abstract":"Indoor positioning system (IPS) is becoming more and more important and necessary in our daily life. Based on the IPS, we may develop a variety of location based services (LBS) such as navigation and orientation in large commercial centers, tracking and monitoring objects, or locating the elderly and children. With the development of new advanced technologies, the hand-held devices such as smart-phones and tablets have been widely used. These devices are all equipped with common sensors such as accelerometer, magnetic field, gyro and sound sensors. Therefore, the development of sensors-based positioning system is becoming practical and easy to implement while GPS or Cell-ID works inaccurately in the indoor environment. In this paper, we propose a solution and develop an application to position user's location in an indoor environment by pedestrian dead reckoning (PDR) and orientation. The proposed system just uses some available sensors of smart-phones: accelerometer sensor, gyro sensor and gravity sensor for PDR which detects steps as well as to measure the length and the orientation of his/her steps and then computes his/her location.","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":"117218294","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: 16
Performance analysis of polar codes with soft input successive cancellation 软输入连续对消极化码的性能分析
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043452
Hyungjin Kim, Jaewook Shin, Jaemin Ahn
{"title":"Performance analysis of polar codes with soft input successive cancellation","authors":"Hyungjin Kim, Jaewook Shin, Jaemin Ahn","doi":"10.1109/ATC.2014.7043452","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043452","url":null,"abstract":"Polar codes were introduced recently as error correction codes to achieve asymmetric capacity in a binary-input discrete memory-less channel (B-DMC) using the channel polarization characteristics. In this paper, we propose the use of a soft input successive cancellation (SC) decoding algorithm for polar codes, and analyze the bit error rate (BER) performance of polar codes in an additive white Gaussian noise (AWGN) channel, which is widely used in analysis communication systems through numerical simulation. The soft input SC decoding algorithm showed a better performance than a hard decision SC decoding algorithm. To implement the soft input SC decoding algorithm in the future, more research on the number of bits is needed.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"45 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":"123997182","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
Fiber-wireless signal transport by terahertz waves 光纤无线信号传输的太赫兹波
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043490
A. Kanno
{"title":"Fiber-wireless signal transport by terahertz waves","authors":"A. Kanno","doi":"10.1109/ATC.2014.7043490","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043490","url":null,"abstract":"In this study, a high-capacity and low-latency fiber-wireless signal transport technology in the terahertz band is discussed. An advanced optical fiber communication technology is easily adopted for high-capacity terahertz signal transmission, as well as for encapsulation of existing radio services into the terahertz carrier.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"145 2 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":"125838667","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
Kernel ridge regression method applied to speech recognition problem: A novel approach 核脊回归法在语音识别中的应用:一种新方法
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043378
H. Trang, L. Tran
{"title":"Kernel ridge regression method applied to speech recognition problem: A novel approach","authors":"H. Trang, L. Tran","doi":"10.1109/ATC.2014.7043378","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043378","url":null,"abstract":"Speech recognition is the important problem in pattern recognition research field. In this paper, the kernel ridge regression method is proposed to be applied to the MFCC feature vectors of the speech dataset available from IC Design lab at Faculty of Electricals-Electronics Engineering, University of Technology, Ho Chi Minh City. Experiment results show that the kernel ridge regression method outperforms the current state of the art Hidden Markov Model method in speech recognition problem in terms of sensitivity performance measure and calculation speed of training process.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"40 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":"124783855","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
An improved rate control scheme for H.264 using bit-count indicator 一种改进的基于比特计数指示器的H.264码率控制方案
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043448
Thao Nguyen Thi Huong, Vũ Hữu Tiến
{"title":"An improved rate control scheme for H.264 using bit-count indicator","authors":"Thao Nguyen Thi Huong, Vũ Hữu Tiến","doi":"10.1109/ATC.2014.7043448","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043448","url":null,"abstract":"Rate control is one of essential techniques in video coding in order to ensure quality of pictures under constraint condition of bandwidth. The rate control algorithm consists of three components: group of pictures (GOP) level rate control, frame level rate control and basic unit level rate control. In this paper, the rate control algorithm at frame level and basic unit level is studied to improve effectiveness. In particular, the paper concentrates on estimating the number of coding bits or bit-count of the current frame and using bit-count as a complexity indicator when computing target bit for the current frame. Results show that the proposed method achieves improvements in estimating target bit for frames and increasing video quality compared to the previous method using MAD as the complexity indicator.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"72 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":"129026299","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
RPL-based multipath Routing Protocols for Internet of Things on Wireless Sensor Networks 基于rpl的无线传感器网络物联网多路径路由协议
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043425
Quan Le, Thu Ngo-Quynh, T. Magedanz
{"title":"RPL-based multipath Routing Protocols for Internet of Things on Wireless Sensor Networks","authors":"Quan Le, Thu Ngo-Quynh, T. Magedanz","doi":"10.1109/ATC.2014.7043425","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043425","url":null,"abstract":"In the last few years, Wireless Sensor Network (WSN) emerges and appears as an essential platform for prominent concept of Internet of Things (IoT). Their application ranges from so-called “smart cities”, “smart homes” over environmental monitoring. The connectivity in IoT mainly relies on RPL (IPv6 Routing Protocol for Low Power and Lossy Network) - a routing algorithm that constructs and maintains DODAGs (Destination Oriented Directed Acyclic Graph) to transmit data from sensors to root over a single path. However, due to the resource constraints of sensor nodes and the unreliability of wireless links, single-path routing approaches cannot be considered effective techniques to meet the performance demands of various applications. In order to overcome these problems, many individuals and group research focuses on multi-path solutions for RPL routing protocol. In this paper, we propose three multipath schemes based on RPL (Energy Load Balancing-ELB, Fast Local Repair-FLR and theirs combination-ELB-FLR) and integrate them in a modified IPv6 communication stack for IoT. These schemes are implemented in OMNET++ simulator and the experiment outcomes show that our approaches have achieved better energy efficiency, better end-to-end delay, packet delivery rate and network load balance compared to traditional solution of RPL.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"39 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":"126770046","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: 58
Optical phase conjugation using high nonlinearity chalcogenide planar waveguides for dispersion compensation 利用高非线性硫化物平面波导进行色散补偿的光学相位共轭
2014 International Conference on Advanced Technologies for Communications (ATC 2014) Pub Date : 2014-10-01 DOI: 10.1109/ATC.2014.7043453
N. D. Nguyen, B. T. Tran
{"title":"Optical phase conjugation using high nonlinearity chalcogenide planar waveguides for dispersion compensation","authors":"N. D. Nguyen, B. T. Tran","doi":"10.1109/ATC.2014.7043453","DOIUrl":"https://doi.org/10.1109/ATC.2014.7043453","url":null,"abstract":"We present the dispersion compensation scheme using optical phase conjugation (OPC) for long-haul transmission systems. The OPC is realized by four-wave mixing process in a dispersion engineered chalcogenide waveguide. Performance of the 1600-km transmission system using different modulation formats at 40 Gbaud has been investigated. Simulated results also indicate that this method is more efficient for the PSK formats. The influence of the pump power and the length mismatch between two sections of the fiber link is also investigated via simulation.","PeriodicalId":333572,"journal":{"name":"2014 International Conference on Advanced Technologies for Communications (ATC 2014)","volume":"85 6 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":"123177710","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
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