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2007 3rd International Workshop on Signal Design and Its Applications in Communications最新文献

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Synthesis Results of the Periodic Discretely Coded Sequences with the Parameters Constraints Defined on the Basis of Cyclotomic Classes 基于环切分类定义参数约束的周期离散编码序列的综合结果
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408416
G. Vladimir, E. Vladimir
{"title":"Synthesis Results of the Periodic Discretely Coded Sequences with the Parameters Constraints Defined on the Basis of Cyclotomic Classes","authors":"G. Vladimir, E. Vladimir","doi":"10.1109/IWSDA.2007.4408416","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408416","url":null,"abstract":"The results of the binary and ternary sequences synthesis by new methodology using a generalized coding rule over cyclotomic classes are presented. The effectiveness of the proposed methodology is shown by numerous examples. Synthesized new regular coding rules for characteristic and binary discretely coded sequences with the given constraints, imposed on the levels of the sidelobes of the correlation functions, on the peak factor, and on the characteristic sequences ensembles of a defined volume, have been synthesized.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130687757","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
Diversity-Based Sampling Rate Reduction for Digital UWB Communications 数字UWB通信中基于分集的采样率降低
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408405
A. C. Gordillo, R. Kohno
{"title":"Diversity-Based Sampling Rate Reduction for Digital UWB Communications","authors":"A. C. Gordillo, R. Kohno","doi":"10.1109/IWSDA.2007.4408405","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408405","url":null,"abstract":"Digital signal processing is a powerful tool which has been considered to propose solutions to important UWB problems, however, the most restraining factor in the development of digital UWB receivers is the limited sampling rate on the off-the-shelf analog to digital conversion circuits. In addition, it is well-known the high power consumption brought in by high sampling rate analog to digital conversion circuits, this undermines the low power consumption characteristic, which is one of the potential advantages of UWB technology. In this paper, we propose a sampling reduction technique based on the introduction of con-troled pulse transmission diversity, which although becomes a deterrent of achievable data rate, can be employed in situations where power consumption rather than high data rate is important. Our analytical and simulation results show the feasibility of the proposed technique for UWB communications.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123476041","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
Single-Carrier Time-Domain Overlapping Multiplexing for Uplink Wireless Communications 用于上行无线通信的单载波时域重叠复用
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408367
Jing Wang, Daoben Li
{"title":"Single-Carrier Time-Domain Overlapping Multiplexing for Uplink Wireless Communications","authors":"Jing Wang, Daoben Li","doi":"10.1109/IWSDA.2007.4408367","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408367","url":null,"abstract":"OvTDM (overlapping time division multiplexing) is a novel method for high spectrum efficiency. The optimal detection of OvTDM is the maximum-likelihood sequence detection (MLSD). However, the detector is too complex to be available in future mobile communication systems. In the paper, a novel system named FDE-OvTDM is proposed for future uplink communications, and the performance of two sub-optimal detectors will be investigated. The signaling scheme, system design and spectrum efficiency of FDE-OvTDM are discussed in detail. Simulation results prove that the performance of FDE-OvTDM is better than that of SC-FDE and OFDM under high spectrum efficiency, and the peak-to-average power ratio (PAPR) of OvTDM is better than that of OFDM.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123865315","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
Finite-Length Sequence Pairs With Impulsive Convolution and Their Application to Asymmetric-Key Spread Spectrum Communication System 脉冲卷积有限长序列对及其在非对称密钥扩频通信系统中的应用
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408351
Y. Tanada
{"title":"Finite-Length Sequence Pairs With Impulsive Convolution and Their Application to Asymmetric-Key Spread Spectrum Communication System","authors":"Y. Tanada","doi":"10.1109/IWSDA.2007.4408351","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408351","url":null,"abstract":"In an ad-hoc communication system, the information security between a sender and a receiver must be assured strictly. In this paper, finite-length sequence pairs are introduced for the application to an asymmetric-key spread spectrum communication system. The convolution of the sequence pair gives an impulse except the small values at the first and last ends. The real-valued sequence pairs of length M have the family number of about 2M/radic2piM and are applied to a signature spread spectrum communication system.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121074012","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
Coded N-ary PPM UWB Impulse Radio with Chaotic Time Hopping and Polarity Randomization 编码n进制PPM超宽带脉冲无线电与混沌时间跳变和极性随机化
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1049/EL:20081500
Yun-Pyo Hong, Seok-Yong Jin, Hong‐Yeop Song
{"title":"Coded N-ary PPM UWB Impulse Radio with Chaotic Time Hopping and Polarity Randomization","authors":"Yun-Pyo Hong, Seok-Yong Jin, Hong‐Yeop Song","doi":"10.1049/EL:20081500","DOIUrl":"https://doi.org/10.1049/EL:20081500","url":null,"abstract":"We consider a coded N-ary pulse position modulated ultra-wide bandwidth (UWB) impulse radio which exploits the chaotic time hopping and the polarity randomization. We show that the proposed system has noise-like spectrum, that is line spectrum free, and discuss its multi-user system. Then, we confirm the bit error rate performance by simulation based on the UWB indoor channel model.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121308148","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
Multiple Access Performance of Ultra-Wideband Systems Based on GO Sequences 基于GO序列的超宽带系统多址性能研究
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408371
Lin Wen, L. Hao, Mei Feng
{"title":"Multiple Access Performance of Ultra-Wideband Systems Based on GO Sequences","authors":"Lin Wen, L. Hao, Mei Feng","doi":"10.1109/IWSDA.2007.4408371","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408371","url":null,"abstract":"In this paper, the performance of direct sequence spread-spectrum (DS-SS) impulse radio (IR) ultra-wideband (UWB) system employing generalized orthogonal (GO) sequences is evaluated under the IEEE 802.15.3a multipath fading channel. Based on the signal-to-interference ratio (SIR) expression provided, the numerical computation results of bit error rate (BER) performance are obtained by means of Gaussian approximation (GA) method. Both the numerical and simulation results provided reveal that GO sequences exhibit better performance than PN sequences and Walsh Hadamard sequences.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127149112","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
High Performance Waveform Generator Design for Full-Coherent Millimeter-Wave Radar 全相干毫米波雷达的高性能波形发生器设计
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408402
Jingye Cai, Yishi Yang, Yuanwang Yang, Lianfu Liu, Xueyong Zhu
{"title":"High Performance Waveform Generator Design for Full-Coherent Millimeter-Wave Radar","authors":"Jingye Cai, Yishi Yang, Yuanwang Yang, Lianfu Liu, Xueyong Zhu","doi":"10.1109/IWSDA.2007.4408402","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408402","url":null,"abstract":"Millimeter-wave radar has attracted much attention as a replacement of some infrared or laser systems currently in use. In this paper, an approach of developing high performance waveform for full-coherent millimeter-wave radar is proposed. With good frequency configuration and optimal utilization of DDS (direct digital synthesizer), PLL (phase locked loop) and FPGA (field programming gate array), the developed radar waveform generator implemented with low complexity has the good performance of both spectrum purity (phase noise and spur level) and switching speed. The measurement results show that, in S/C band, the local oscillator's bandwidth is 480MHz and the minimum frequency step is 15MHz, the spur level is better than -65dBc, the phase noise level is better than -94dBc/Hz@1kHz, the maximum frequency switching time is less than 15mus.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125147194","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
Sphere-Decoding of OvTDM OvTDM的球体解码
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408363
Dongfeng Zhao, Daoben Li, Xin Jin
{"title":"Sphere-Decoding of OvTDM","authors":"Dongfeng Zhao, Daoben Li, Xin Jin","doi":"10.1109/IWSDA.2007.4408363","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408363","url":null,"abstract":"OvTDM (overlapped time division multiplexing) is a new type of transmission scheme with high spectrum efficiency and low threshold SNR (signal noise ratio). Sphere-decoding of OvTDM is used to achieve fast ML decoding, with the simulation results and expected complexity analysis given.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128155712","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
Double Periodic Arrays with Good Correlation for Applications in Watermarking 具有良好相关性的双周期阵列在水印中的应用
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408361
O. Moreno, J. Ortiz-Ubarri
{"title":"Double Periodic Arrays with Good Correlation for Applications in Watermarking","authors":"O. Moreno, J. Ortiz-Ubarri","doi":"10.1109/IWSDA.2007.4408361","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408361","url":null,"abstract":"Digital watermarking applications require constructions of double-periodic matrices with good correlations. More specifically we need as many matrix sequences as possible with both good auto and cross-correlation. Furthermore it is necessary to have double-periodic sequences with as many dots as possible. In this paper we present a method that increases the number of sequences, and another that increases the number of ones keeping the correlation good and double-periodic. Finally we combine both methods producing families of double-periodic arrays with good correlation and many dots. The method of increasing the number of sequences is due to Moreno, Omrarii and Marie. The method to increase the number of dots was started by Nguyen, Lazlo and Massey, developed by Moreno, Zhang, Kumar and Zinoviev, and further developed by Tirkel and Hall. The very nice application to digital watermarking is due to Tirkel and Hall. Finally we obtain two new constructions of optical orthogonal codes and two new constructions of matrices: Construction A which produces codes with pa-rameters (n,omega,lambda) = (p(p -1), p2-1/2, [p(p+1]), Construction B which produces families of code with parameters (n,omega,lambda) = {p2{p-1),p(p+1)/2, [p(p+1)/4]), max cross-correlation p, and family size p + 1. Contruction A' which produces matrices with parameters (n,omega,lambda) = (p2(p-1),p(p-1),lambdat(p) + 3) Construction B' which produces matrices with parameters (n,omega,lambda) = (p2(p-1),p(p-1),lambdat(p) + 3), max cross-correlation p, and family size p + 1.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132399214","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
Analysis of Multicarrier CDMA System with Adaptive Subcarrier and Power Allocation 具有自适应子载波和功率分配的多载波CDMA系统分析
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408377
Jianli Xie, Cuiran Li, Chengshu Li
{"title":"Analysis of Multicarrier CDMA System with Adaptive Subcarrier and Power Allocation","authors":"Jianli Xie, Cuiran Li, Chengshu Li","doi":"10.1109/IWSDA.2007.4408377","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408377","url":null,"abstract":"Multicarrier code-division multiple-access (MC-CDMA) is one of the effective techniques to gain its multiple access capability, robustness against fading, and to mitigate the ISI. The paper proposes a dynamic subchannel and power allocation algorithm for MC-CDMA system. In the proposed scheme, data is transmitted over the user's best subcarrier and power control is applied for the selected subcarrier, rather than transmitted over all the subcarriers. Analysis and simulation results show that the proposed scheme outperforms the conventional MC-CDMA in BER performance.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123554915","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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