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Message from the chairs 来自椅子的信息
2009 International Conference on Advanced Technologies for Communications Pub Date : 2019-09-01 DOI: 10.1109/ICPPW.2005.50
F. F. D. Vega, E. Cantú-Paz
{"title":"Message from the chairs","authors":"F. F. D. Vega, E. Cantú-Paz","doi":"10.1109/ICPPW.2005.50","DOIUrl":"https://doi.org/10.1109/ICPPW.2005.50","url":null,"abstract":"","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123302273","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
Multiple antenna UWB systems WP3 of the EUWB-Project euwb项目的多天线超宽带系统WP3
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349380
C. Kupferschmidt, E. Dimitrov, T. Kaiser
{"title":"Multiple antenna UWB systems WP3 of the EUWB-Project","authors":"C. Kupferschmidt, E. Dimitrov, T. Kaiser","doi":"10.1109/ATC.2009.5349380","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349380","url":null,"abstract":"The main objective of work package WP3 of the FP7 project EUWB is to allow for innovations, evaluation of multiple antenna specific algorithms and verification of enhanced implementation solutions developed within the EUWB project. This work package has the objective to identify and provide system concepts, requirements and measurement set-ups for certain application environments, in particular for MIMO-UWB in home entertainment, in automotive environment and in public transport. Further a MIMO-UWB test-bed for evaluation and verification of specific multiple antenna algorithms and system designs will be provided. The evaluation of this initial test-bed allows the study of multi-user and interfering scenarios by providing access to the real MIMO channel. Also application aware algorithms will be developed to enable link quality improvement, range extension, and multi-user enhancements, so as to exploit the benefits offered by the multiple antenna technology.","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128317755","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
Adaptive-threshold clipping for impulsive noise reduction in OFDM-based power line Communications 基于ofdm的电力线通信脉冲降噪的自适应阈值裁剪
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349349
K. Al-Mawali, Z. M. Hussain
{"title":"Adaptive-threshold clipping for impulsive noise reduction in OFDM-based power line Communications","authors":"K. Al-Mawali, Z. M. Hussain","doi":"10.1109/ATC.2009.5349349","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349349","url":null,"abstract":"Noise in the power line channel can not be described by Additive White Gaussian Noise (AWGN). This channel suffers from impulsive noise and other narrow-band interferences. Impulsive noise, in particular, can degrade the performance of OFDM-based Power Line Communication (PLC) systems significantly. Due to its simplicity, clipping is a popular technique for impulsive noise reduction. In this paper, we propose an adaptive- threshold clipping technique for impulsive noise reduction in OFDM based PLC receivers. Adaptivity in this technique is based on the minimum Bit Error Rate (BER). For our simulations, we adopt a widely accepted and practically proven channel model for broadband power line communication. Three noise scenarios, namely “heavily disturbed”, “medium disturbed” and “weakly disturbed”, that are based on practical measurements are used to investigate the performance of clipping technique before and after employing the proposed adaptive threshold by means of computer simulations.","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"68 10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133990785","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: 42
CMI and IFI mitigation for TH-PPM Ultra Wideband systems with a low complexity receiver 低复杂度接收机TH-PPM超宽带系统的CMI和IFI缓解
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349487
T. K. Nguyen, Tien-Hoa Nguyen, T. Kaiser
{"title":"CMI and IFI mitigation for TH-PPM Ultra Wideband systems with a low complexity receiver","authors":"T. K. Nguyen, Tien-Hoa Nguyen, T. Kaiser","doi":"10.1109/ATC.2009.5349487","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349487","url":null,"abstract":"Pulse Position Modulation (PPM) is a popularly adopted modulation scheme in the Impulse Radio based Ultra Wideband (UWB) systems. In order to shape the spectrum of the signal, a time dither on generated pulses leading to so-called Time Hopping UWB (TH-UWB) is introduced. Although of many advantages, the TH-PPM scheme faces serious challenges which are the Cross Modulation Interference (CMI) and the Inter Frame Interference (IFI) due to the multipath propagation. In this paper, Time Reversal is proposed as a technique for mitigating the CMI and IFI in TH-PPM UWB systems at the transmitter side. The CMI and IFI amount can be assessed by Signal-to-Interference-Ratio (SIR). Simulation results show that the proposed approach can improves the BER performance of the system considerably. We focus here on the single-user case, however, we can extend the result to the multi-user case by using different TH codes","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131839228","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
Facial expression recognition over FFT-OFDM 基于FFT-OFDM的面部表情识别
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349353
S. Lajevardi, K. Neville, Z. M. Hussain
{"title":"Facial expression recognition over FFT-OFDM","authors":"S. Lajevardi, K. Neville, Z. M. Hussain","doi":"10.1109/ATC.2009.5349353","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349353","url":null,"abstract":"Facial expression recognition (FER) is an important task in human- computer interaction systems to include emotion processing. In this work we present the recognition of facial expressions in OFDM systems. The original image is converted to binary code then it is transmitted via OFDM over a multi-path fading channel. The features are then extracted from the reconstructed image at the receiver based on the log Gabor filter. Finally, the features are classified using the naive Bayesian classifier. Simulation results on the Cohn-Kanade database show that the system obtains good results in the presence of noise in the received images.","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133278133","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
Using Bayes method and Fuzzy C - Mean Algorithm for Fire Detection in Video 利用贝叶斯方法和模糊C均值算法进行视频火灾检测
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349391
Dai Ha, A. Nguyen
{"title":"Using Bayes method and Fuzzy C - Mean Algorithm for Fire Detection in Video","authors":"Dai Ha, A. Nguyen","doi":"10.1109/ATC.2009.5349391","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349391","url":null,"abstract":"This paper proposes a new approach that combines Bayes method and fuzzy C - Means Algorithm in order to detect the movement of objects, and determine the fire color pixels in RGB space","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133629982","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: 6
Closed-form expressions for symbol error rates of MIMO-MRC with channel estimation error 考虑信道估计误差的MIMO-MRC符号错误率的封闭表达式
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349533
A. Gurung, F. Al-Qahtani, K. Abdullah, Z. M. Hussain
{"title":"Closed-form expressions for symbol error rates of MIMO-MRC with channel estimation error","authors":"A. Gurung, F. Al-Qahtani, K. Abdullah, Z. M. Hussain","doi":"10.1109/ATC.2009.5349533","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349533","url":null,"abstract":"In this paper, we derive closed form expressions for average symbol error rate of M-ary signalling for MIMO-MRC (MRT) systems over Rayleigh fading channels taking account of channel estimation errors. Following the moment generating function (mgf), we formulate the final expressions in the form of hypergeometric functions. The expressions are valid for an arbitrary number of antennas and any modulation levels. MRT system suffers significant performance degradation due to Gaussian estimation errors. Evenly distributed antenna system offers better trade-offs.","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127387694","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
Implementation of an OFDM system based on the TMS320C6416 DSP 基于TMS320C6416 DSP的OFDM系统的实现
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349336
V. Nguyen, Van Luong Pham, Van Xiem Hoang, Huy-Dung Han, H. Nguyen, T. Nguyen
{"title":"Implementation of an OFDM system based on the TMS320C6416 DSP","authors":"V. Nguyen, Van Luong Pham, Van Xiem Hoang, Huy-Dung Han, H. Nguyen, T. Nguyen","doi":"10.1109/ATC.2009.5349336","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349336","url":null,"abstract":"In this paper, we present the implementation of an OFDM system based on the TMS320C6416 DSP. Methods for synchronization and channel estimation are shortly described. Structure of the used DSP board, and the interface between host and target are reviewed. Protocols for implementing a whole real time system are introduced. Synchronization results and received signal obtained by the DSP are visualized to verify the implemented system.","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124204784","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
New tube-based shooting and bouncing ray tracing method 新的基于管的射击和反弹光线追踪方法
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349441
C. Saeidi, F. Hodjatkashani, A. Fard
{"title":"New tube-based shooting and bouncing ray tracing method","authors":"C. Saeidi, F. Hodjatkashani, A. Fard","doi":"10.1109/ATC.2009.5349441","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349441","url":null,"abstract":"In this paper, a new shooting and bouncing (SBR) ray-tracing method is presented for wave propagation simulating, based on the tube shooting. Two concepts of center-ray tube and lateral-ray tube are defined and then compared in different aspects of accuracy and computational time wherein the use of lateral-ray tube revealed as important step forward in ray tracing accuracy but more time consuming. An acceleration technique developed based on ray tubes coherency that deals with ray-sharing characteristic of tube. New concept of two-ray tube tracing (TRTT) benefiting four-ray tube configuration is presented. A computational procedure developed to implement TRTT technique for simulation of wave propagating through large complex three-dimensional (3D) objects. To verify accuracy of presented TRTT technique and relevant computational procedure, a simple 4 buildings scenario analyzed using CST MICROWAVE STUDIO®. Moreover, field measurement values and TRTT simulation results compared in an urban environment on 910 MHz. The good agreement between simulation results and the measurements validates presented technique. Consequently, proposed technique provides an efficient ray tracing method while retains same accuracy as for four-ray tube launching. Moreover, this method can be used for evaluation of wireless channel characteristics by providing enough 3D information of tube configuration for 3D analysis of environments.","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128523283","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 improvement of STBC CDMA system in correlated MIMO channels 相关MIMO信道下STBC CDMA系统的性能改进
2009 International Conference on Advanced Technologies for Communications Pub Date : 2009-12-08 DOI: 10.1109/ATC.2009.5349315
M. Rahmati, V. Vakili
{"title":"Performance improvement of STBC CDMA system in correlated MIMO channels","authors":"M. Rahmati, V. Vakili","doi":"10.1109/ATC.2009.5349315","DOIUrl":"https://doi.org/10.1109/ATC.2009.5349315","url":null,"abstract":"In this paper the effect of spatial correlation in Code Division Multiple Access (CDMA) Space-Time Block Coding (STBC) system is investigated. Having some information about the channel of each active user in the transmitter, a linear precoder can be exploited in downlink situation to mitigate the effect of correlation in multiuser system environment which has not been addressed before. Simulation results illustrate that despite the number of interfering users, the anti-correlation precoder could mitigate the performance degradation caused by correlation.","PeriodicalId":311235,"journal":{"name":"2009 International Conference on Advanced Technologies for Communications","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130056439","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
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