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

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A New Prime-Phase Sequence Family with Low Correlation and Large Size 一种新的低相关大尺寸素相序列族
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408413
Nigang Sun, L. Hu, Li Lu, Xuyun Nie
{"title":"A New Prime-Phase Sequence Family with Low Correlation and Large Size","authors":"Nigang Sun, L. Hu, Li Lu, Xuyun Nie","doi":"10.1109/IWSDA.2007.4408413","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408413","url":null,"abstract":"A new family of p-phase low-correlation sequences with large family size, where p is an odd prime, is constructed by using the highest coordinate of linear recurrence sequences over the ring Z<sub>p</sub> <sup>l</sup>, for l ges 2. Utilizing Galois ring theory (the local Weil bound) and spectral analysis over the additive group of Z<sub>p</sub> <sup>l</sup>, we derive an estimate of the correlation of the sequences.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"94 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":"132911638","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 Simple Scheme Based on TR-STBC over Multipath Fading Channels in MIMO System MIMO系统中基于TR-STBC的多径衰落信道简单方案
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408376
Jianglin Zhang, Jingfang Sun, Ping Yang
{"title":"A Simple Scheme Based on TR-STBC over Multipath Fading Channels in MIMO System","authors":"Jianglin Zhang, Jingfang Sun, Ping Yang","doi":"10.1109/IWSDA.2007.4408376","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408376","url":null,"abstract":"This paper proposes a time-reversal (TR) STBC method based on antenna selection over multipath fading channels in MIMO system fading channels. The TR-STBC has the potential to separate the data transmitted from two antenna using a simple matched filter,therefore, it facilitates independent decoding of the data transmitted from different antennae. The result shows that a superior performance can be obtained by communication system, when best two antenna are chosen according to the channel state feedback information and a time-reversal based on STBC is employed. And simulation also testifies the performance of the proposed scheme is also studied against various feedback error rates to demonstrate robustness of the proposed scheme over a simple antennae selection diversity scheme.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"73 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":"123285272","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
AOA Estimation Based on MP Algorithm in Beam-Space Using Rotational Invariance Technique 基于旋转不变性波束空间MP算法的AOA估计
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408341
Yu Yang, Wang Jiang-ying
{"title":"AOA Estimation Based on MP Algorithm in Beam-Space Using Rotational Invariance Technique","authors":"Yu Yang, Wang Jiang-ying","doi":"10.1109/IWSDA.2007.4408341","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408341","url":null,"abstract":"A novel algorithm using Rotational Invariance technique for AOA estimation is presented in this paper, which is based on sparse decomposition of signal, and applied into beam-space against the deficiencies of traditional DF algorithms and sub-space algorithms. The former methods are widely used in actual applications. However, they have many drawbacks such as low-resolution, bad robustness and etc. The latter ones which base on subspace method have gained great interest in the past two decades. What we know about this kind of methods are their super-resolution quality and their weaknesses as well, e.g. constrained by the number of elements, behaving badly when correlativity of sources grows. Approach proposed in this paper fist constructs atom-dictionaries using outputs of second sub-array and then transforms observations of fist sub-array and dictionaries in array-space to beam-space, and finally obtains AOAs through thinning sectors by solving least squares problems. Numerical simulations have proved the effectivity of the algorithm and good performance in low signal-to-noise ratio (SNR) regime.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"1138 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":"116478774","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
Fast Transform and Quantization Architecture with All-Zero Detection and Bit Estimation for H. 264/AVC 基于H. 264/AVC的全零检测和比特估计的快速变换和量化架构
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408391
H. Kuniyasu, T. Kishida, Tian Song, T. Shimamoto
{"title":"Fast Transform and Quantization Architecture with All-Zero Detection and Bit Estimation for H. 264/AVC","authors":"H. Kuniyasu, T. Kishida, Tian Song, T. Shimamoto","doi":"10.1109/IWSDA.2007.4408391","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408391","url":null,"abstract":"In this paper a fast processing architecture for the transform and quantization of the H.264/AVC, named DQ engine, is proposed. Compare with the traditional architecture, proposed DQ engine architecture could achieve 2 times fast processing of transform and quantization together with the inverse transform and inverse quantization when the rate-distortion optimization is performed. Moreover, proposed architecture introduced an all-zero block detection architecture which could cut down the redundant processing of the all-zero coefficient blocks. A bit estimation architecture is also introduced into the DQ Engine to fulfill fast estimation of the generated bits. Implementation results show that the proposed architecture could be fulfilled with only 126,728 transistors.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"24 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113955454","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
Recursion Subspace-Based Method for Bearing Estimation 基于递归子空间的方位估计方法
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408355
Lei Huang, Xia Li, Liangwei Cai, Shunjun Wu
{"title":"Recursion Subspace-Based Method for Bearing Estimation","authors":"Lei Huang, Xia Li, Liangwei Cai, Shunjun Wu","doi":"10.1109/IWSDA.2007.4408355","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408355","url":null,"abstract":"In this paper, a recursion subspace-based method (RSM) is presented to estimate the bearings of incident signals impinging on a uniform linear array (ULA). Unlike the existing linear operation based methods, such as the signal subspace method without eigendecomposition (SUMWE) of Xin et al, that calculate the noise subspace, the RSM method finds a cleaner signal subspace by means of a successive recursion procedure. Thus, the RSM method has the advantages of computational simplicity and accurate estimation, in particular for a large array. Numerical results are presented to compare the performance the RSM method with that of the SUMWE methods.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"159 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":"122994053","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
Properties of Even-Shift Orthogonal Sequences 偶移正交序列的性质
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408353
S. Matsufuji, T. Matsumoto, K. Funakoshi
{"title":"Properties of Even-Shift Orthogonal Sequences","authors":"S. Matsufuji, T. Matsumoto, K. Funakoshi","doi":"10.1109/IWSDA.2007.4408353","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408353","url":null,"abstract":"This paper investigates properties of the even-shift orthogonal sequence of length 2n, whose out-of-phase aperiodic auto-correlation function takes zero at any even shift. It is shown that the halves of all E-sequences with odd n produced by logic functions are balanced sequences, whose elements 1 and -1 appear half, and there is not any balanced e-sequence for even n. Furthermore it is also shown that the aperiodic auto-correlation function possesses low values at odd shifts.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"32 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":"117021560","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
A Secure Authenticated Encryption Scheme and Its Extension 一种安全认证加密方案及其扩展
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408412
Jianhong Zhang, Ji Cheng
{"title":"A Secure Authenticated Encryption Scheme and Its Extension","authors":"Jianhong Zhang, Ji Cheng","doi":"10.1109/IWSDA.2007.4408412","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408412","url":null,"abstract":"An authenticated encryption scheme is a message transmission scheme, which can send a message in a secure and authentic way, and allows the specified recipient to simultaneously recover and verify the validity of a message. In the large message transmission, traditional authenticated encryption schemes have the disadvantage that communication overheads and the computation costs are too high. In this work, we propose a secure authentication encryption scheme and show that the scheme is secure in the random oracle model. Comparisons of our proposed scheme with Wu-Hsus scheme and Huang-Changs scheme, the proposed scheme is more efficient for computation complexity and communication cost. Finally, we extend our proposed scheme to adapt to the authenticated encryption for a large message, which is secure against the message block being reordered, replicated or partially deleted during transmission.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"19 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":"124372611","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
Construction and Application of OVSF-ZCZ Originated from LS and GO Sequences 源自LS和GO序列的OVSF-ZCZ的构建与应用
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408393
Chao Zhang, Xiaoming Tao, Jianhua Lu
{"title":"Construction and Application of OVSF-ZCZ Originated from LS and GO Sequences","authors":"Chao Zhang, Xiaoming Tao, Jianhua Lu","doi":"10.1109/IWSDA.2007.4408393","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408393","url":null,"abstract":"ZCZ sequences have been confirmed with the capability in interference mitigation in multipath fading channel. On the other hand, OVSF has been successfully applied in WCDMA for separating different channels with different transmission capacity. In this paper, novel OVSF-ZCZ sequences originated from LS and GO sequences have been proposed for CDMA systems with different service requirements. The construction method is discussed and the performance of the system is evaluated.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"146 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133355903","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
Code Generator Implementation on FPGA for an Optical ZCZ Code Using a Sylvester Type Hadamard Matrix 利用Sylvester型Hadamard矩阵实现光学ZCZ码的FPGA代码生成器
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408365
T. Matsumoto, S. Matsufuji
{"title":"Code Generator Implementation on FPGA for an Optical ZCZ Code Using a Sylvester Type Hadamard Matrix","authors":"T. Matsumoto, S. Matsufuji","doi":"10.1109/IWSDA.2007.4408365","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408365","url":null,"abstract":"The optical ZCZ code is a set of pairs of binary and bi-phase sequences with zero correlation zone. An optical code division multiple access (CDMA) system using this code can remove co-channel interference and influence of multi-path. We proposed the compact construction of a bank of matched filters for this code in a receiver. But we have not proposed the construction of a code generator for this code in a transmitter yet. In this paper, we propose the construction of two code generators for an optical ZCZ code using a Sylvester-type Hadamard matrix, which are called ROM-type and non ROM-type code generators. This ROM-type code generator can be constructed by a ROM and a up-counter. Similarly, this non ROM-type code generator can be constructed by a up-counter, flip-flops and logic gates. The ROM-type and non ROM-type code generators are implemented on a field programmable gate array (FPGA) corresponding to 400,000 logic gates, and the non ROM-type code generator can reduce logic elements than the ROM-type code generator.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"37 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":"131231950","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
Sequence Sets with Zero Correlation Zones using Mismatched Filtering 使用不匹配滤波的零相关区序列集
2007 3rd International Workshop on Signal Design and Its Applications in Communications Pub Date : 2007-12-26 DOI: 10.1109/IWSDA.2007.4408409
Q. K. Trinh, P. Fan, Xiaohu Tang
{"title":"Sequence Sets with Zero Correlation Zones using Mismatched Filtering","authors":"Q. K. Trinh, P. Fan, Xiaohu Tang","doi":"10.1109/IWSDA.2007.4408409","DOIUrl":"https://doi.org/10.1109/IWSDA.2007.4408409","url":null,"abstract":"In mobile communications, navigation and radar applications, good periodic sequences are normally used with matched-filter technique. However, from viewpoint of signal processing, there is no need to consider the filter coefficients as binary only. This paper proposes a method for constructing sets of sequences with zero correlation zone (ZCZ) for application in mismatched filtering.","PeriodicalId":303512,"journal":{"name":"2007 3rd International Workshop on Signal Design and Its Applications in Communications","volume":"9 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":"114709786","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
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