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2017 9th International Conference on Advanced Infocomm Technology (ICAIT)最新文献

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The M-sequence encoding method for radar-communication system based on filter bank multi-carrier 基于滤波器组多载波的雷达通信系统m序列编码方法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388925
Weiwei Xu, Cheng Wang, Gaofeng Cui, Weidong Wang, Yinghai Zhang
As a burgeoning communication technology with flexible resource allocation, high spectral efficiency, strong anti-dual selective fading ability, filter-bank multi-carrier (FBMC) has a good prospect in the development of radar-communication integration. In this paper, we introduced FBMC technology to this integrated system and found many problems as follows (i) in order to transmit information by radar waveform, the integrated signal is loaded with the communication data. Since the data may be duplicated and similar, their correlation is big enough, which led to the radar resolution efficiency decline; (ii) when the data rate of communication increase, the number of FBMC symbols and subcarriers are increased as a consequence. The research shows it introduce a lower amplitude of the clutters of the distance ambiguity function, but the ambiguity area is widened. In order to improve the performance of distance resolution, this paper proposes a m-Sequence filter-bank multi-carrier (MS-FBMC) integrated radar-communication signal by preencoding of communication information based on m-Sequence to improve the radar-communication integration signal autocorrelation. The simulation results show that MS-FBMC signal's ambiguity function has an ideal thumbtack shape, and the distance distinguish capability of FBMC radar is also enhanced without decrease the transmission rate at the same time.
滤波器组多载波(FBMC)作为一种新兴的通信技术,具有资源分配灵活、频谱效率高、抗双选择性衰落能力强等特点,在雷达通信集成中具有良好的发展前景。本文将FBMC技术引入到该集成系统中,发现了以下问题:(1)为了利用雷达波形传输信息,在集成信号中加载通信数据。由于数据可能重复、相似,相关性足够大,导致雷达分辨效率下降;(ii)当通信数据速率增加时,FBMC符号和子载波的数量也随之增加。研究表明,该方法引入了较低幅度的距离模糊函数杂波,但模糊区域有所扩大。为了提高距离分辨性能,提出了一种基于m序列对通信信息进行预编码的m序列滤波器组多载波(MS-FBMC)集成雷达通信信号,以提高雷达通信集成信号的自相关性。仿真结果表明,MS-FBMC信号的模糊函数具有理想的图钉形状,在不降低传输速率的同时,增强了FBMC雷达的距离识别能力。
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引用次数: 5
Super-resolution restoration algorithm based on contourlet transform 基于contourlet变换的超分辨率恢复算法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388947
H. Rong, T. Li
The image super-resolution reconstruction algorithm based on wavelet transform is widely used in almost all applications of image restoration such as image coding, image enhancement, image drying, image fusion and so on. But the wavelet transform can only express the location and characteristics of singularity, and is powerless for the feature of the higher dimension. In addition, the wavelet transform kernel lacks the directivity, and can not obtain the geometric smoothness of the contour. In view of this kind of problem, this paper proposes a super-resolution reconstruction algorithm based on Contourlet transform. The algorithm extends the advantages of wavelet to the high-dimensional space, which can better describe the characteristics of the high-dimensional space, and be more suitable for dealing with information with hyperplane singularity. It is concluded that the improved algorithm has a good effect on both the subjective visual effect and the aspect of PSNR, especially in the recovery of the detailed information of the image, by the experimental simulation and compared with other algorithms.
基于小波变换的图像超分辨率重建算法被广泛应用于图像编码、图像增强、图像干燥、图像融合等几乎所有的图像恢复应用中。但小波变换只能表达奇异点的位置和特征,对高维特征无能为力。此外,小波变换核缺乏指向性,无法获得轮廓的几何光滑性。针对这类问题,本文提出了一种基于Contourlet变换的超分辨率重建算法。该算法将小波的优点扩展到高维空间,能更好地描述高维空间的特征,更适合处理具有超平面奇异性的信息。通过实验仿真和与其他算法的比较,得出改进算法在主观视觉效果和PSNR方面都有很好的效果,特别是在图像细节信息的恢复方面。
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引用次数: 0
The mass data mining research based on the information platform of Internet of Things 基于物联网信息平台的海量数据挖掘研究
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388923
Juan Li, Xuan Luo, Fengqi Hao
This paper analyzes the key technologies of the distributed data, and proposes the solution of the mass data processing based on the Information platform of Internet of Things. The solution uses Hadoop as the open source framework to realize the distributed computing system, and uses Mahout as the data mining algorithm library to realize the parallelization of k-means clustering algorithm. This will achieve the high efficiency and the large expansibility through the mass data processing. The mass data source used in this project is from the intelligent agricultural Information service platform. The system takes the deployment test on the mass sensing information, and it optimizes and parallelizes the K-means algorithm to realize the mass data processing based on the Information platform of Internet of Things. It can make the statistical analysis, and provide fine management and other services. the algorithm is used to improve the efficiency and the accuracy of the platform with the supercomputing and the reliable storage ability.
分析了分布式数据的关键技术,提出了基于物联网信息平台的海量数据处理解决方案。该方案采用Hadoop作为开源框架实现分布式计算系统,采用Mahout作为数据挖掘算法库实现k-means聚类算法的并行化。通过对海量数据的处理,实现了高效率和大可扩展性。本项目使用的海量数据源来自智能农业信息服务平台。系统对海量传感信息进行了部署测试,并对K-means算法进行了优化并行化,实现了基于物联网信息平台的海量数据处理。可以进行统计分析,并提供精细化管理等服务。该算法具有超强的计算能力和可靠的存储能力,可以提高平台的效率和精度。
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引用次数: 0
An improved pilot routing algorithm for compressed sensing-based channel estimation in underwater acoustic OFDM system 一种改进的基于压缩感知的水声OFDM信道估计导频路由算法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388895
L. Tang, Haixia Wu, Rongkun Jiang, Chang Lu
Compressed sensing (CS) is used to estimate channel information in underwater acoustic OFDM system recently. However, there are no recognition criteria to specify the pilot patterns in channel estimation. In order to improve the accuracy of the estimation, this paper proposes a pilot routing algorithm based on minimizing the adjusted mutual coherence of the measurement matrix in the recovery algorithm of compressed sensing theory. Each pilot symbol location is determined by calculating the adjusted mutual coherence of the corresponding measurement matrix. The matrix is produced by fixing other pilot location indexes and replacing the index of the current pilot location with all optional indexes. The simulation results show that the BER is 2dB and 8dB lower when SNR is 5dB and 30dB respectively, and the MSE is 2dB lower compared with the results of algorithm 1. Comparing with the results of algorithm 2, the BER is 2dB better, and the MSE is 3dB lower when SNR is 30dB. The data confirms the efficiency of this pilot routing algorithm.
近年来,压缩感知技术被用于水声OFDM系统的信道信息估计。然而,在信道估计中,没有识别标准来指定导频模式。为了提高估计的精度,本文在压缩感知理论的恢复算法中提出了一种基于最小化测量矩阵调整后相互相干性的导频路由算法。每个导频符号的位置是通过计算相应测量矩阵调整后的相互相干性来确定的。通过固定其他导频位置索引并将当前导频位置的索引替换为所有可选索引来生成矩阵。仿真结果表明,与算法1的结果相比,信噪比分别为5dB和30dB时,误码率分别降低了2dB和8dB, MSE降低了2dB。当信噪比为30dB时,与算法2相比,误码率提高了2dB, MSE降低了3dB。实验数据验证了该导频路由算法的有效性。
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引用次数: 3
A call admission control scheme in cache-enabled satellite-terrestrial communication networks 高速缓存卫星-地面通信网中的呼叫接纳控制方案
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388924
Jiawei Yu, Pengxu Li, Gaofeng Cui, Xiuhua Li, Weidong Wang
Satellite-terrestrial communication network has been proposed in recent years, for its great potential in larger coverage and better load balancing ability for wireless communication networks. However, with the number of users and the traffic load in the network rapidly increasing, the resource of the system becomes more intense. Thus, a proper and high-efficient call admission control scheme is needed to balance the traffic load and properly allocate the limited wireless resources. This paper presents a call admission control scheme with additional consideration of users' Quality of Service (QoS) and cache technique. Firstly, a system model of the satellite-terrestrial communication network is introduced. After that, an objective function of the system throughput is derived and laterly optimized with genetic algorithm. Simulation result shows that higher system throughput can be achieved with the proposed scheme, while the QoS of users remains uninfluenced. Besides, the Call Blocking Probability (CBP) of the system is reduced efficiently, and the resource utilization is improved at the same time.
星地通信网络由于在无线通信网络中具有更大的覆盖范围和更好的负载均衡能力,近年来被提出。然而,随着网络中用户数量和流量负载的迅速增加,系统的资源变得越来越紧张。因此,需要一种合理、高效的呼叫接纳控制方案来平衡业务负载,合理分配有限的无线资源。本文提出了一种考虑用户服务质量和缓存技术的呼叫接纳控制方案。首先,介绍了星地通信网络的系统模型。然后推导出系统吞吐量的目标函数,并用遗传算法对其进行优化。仿真结果表明,该方案在不影响用户QoS的前提下,可以实现更高的系统吞吐量。有效地降低了系统的呼叫阻塞概率(CBP),同时提高了资源利用率。
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引用次数: 2
A radio frequency fingerprinting identification method based on energy entropy and color moments of the bispectrum 一种基于能量熵和双谱色矩的射频指纹识别方法
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388905
Xin Wang, Jie Duan, Cheng Wang, Gaofeng Cui, Weidong Wang
Network security is a vital and essential problem in wireless communication system. There are two methods to ensure network security, one is based on bit-level credentials, and the other is based on radio frequency fingerprinting (RFF). RFF is getting more and more attention, for it is rather difficult to imitate and replicate RFF features by software. In this paper, the energy entropy and color moments of the bispectrum, as well as the support vector machine, are proposed or identifying different devices. Simulation results demonstrate that the proposed method outperforms the previous ones, especially when signal-to-noise ratio (SNR) is low. The identification accuracy achieves nearly 80% when SNR=0dB. Experiment is also conducted, further proving the effectiveness.
网络安全是无线通信系统中一个至关重要的问题。确保网络安全的方法有两种,一种是基于位级凭据,另一种是基于射频指纹(RFF)。RFF越来越受到人们的重视,但用软件来模拟和复制RFF特征是相当困难的。本文提出了双谱的能量熵和色矩,以及支持向量机来识别不同的设备。仿真结果表明,该方法在低信噪比情况下具有较好的性能。当信噪比为0dB时,识别准确率接近80%。并进行了实验,进一步证明了该方法的有效性。
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引用次数: 7
On the key dependent message security of DHIES DHIES的密钥依赖消息安全性研究
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388939
Honglong Dai, Luxuan Zhang, Janyan Ji, Jinyong Chang, Maozhi Xu
DHIES is a Diffle-Hellman based scheme that combines a symmetric encryption method, a message authentication code, and a hash function, in addition to number theoretic operations, in a way which is intended to provide security against chosen ciphertext attacks. In this paper, we show that DHIES satisfies KEM-CCA security. DHIES is a extension of Elgamal encryption scheme, which is as efficient as ElGamal encryption encryption. However, it has stronger security properties, Furthermore, these security properties are proven to hold under appropriate assumptions on the underlying primitive. In this paper, we study the KDM-CCA security of DHIES, we prove that the DHIES can achieves KDM-CCA security if appropriate assumption on the underlying primitive.
DHIES是一种基于Diffle-Hellman的方案,除了数论操作外,它还结合了对称加密方法、消息认证代码和哈希函数,其目的是提供针对选定密文攻击的安全性。在本文中,我们证明了DHIES满足kema - cca安全性。DHIES是对Elgamal加密方案的扩展,具有与Elgamal加密一样的加密效率。然而,它具有更强的安全属性,而且,这些安全属性被证明在对底层原语的适当假设下是成立的。本文研究了DHIES的KDM-CCA安全性,证明了DHIES在对底层原语进行适当假设的情况下可以实现KDM-CCA安全性。
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引用次数: 1
Paper infrared image retrieval of power equipment based on perceptual hash and SURF 基于感知哈希和SURF的电力设备红外图像检索
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388951
Guohui Zhou, Lijun Xiao, Xingyu Pei, Chenxi Li, Huiping Qin, Jinpeng Zhang, Z. Fang
This paper presents a method for identifying the most similar image in the visible image library and the given infrared image. First the method of visible and infrared image edge extraction respectively, and then use the perceptual hash encoding method of edge image, and get the image similarity by comparing the two image hash encoding Hamming distance. As the infrared image noise more perceptual hash algorithm based on pixel values may have errors of judgment, so the use of hash algorithm to get similarity on the 3 visible images using the SURF algorithm to compare the similarity. Based on the slope consistency, two image matching points are obtained. The most visible images of matching points are selected as the most similar images to infrared images. Experimental results show that the method can identify the visible image with the highest similarity between infrared image and visible image library.
本文提出了一种识别可见光图像库中与给定红外图像最相似图像的方法。首先对可见光和红外图像分别进行边缘提取的方法,然后采用感知哈希编码方法对边缘图像进行编码,并通过比较两种图像哈希编码的汉明距离得到图像相似度。由于红外图像噪声较多,基于像素值的感知哈希算法可能存在判断误差,因此利用哈希算法对3张可见光图像进行相似度比较,利用SURF算法对相似度进行比较。基于斜率一致性,得到两个图像匹配点。选取匹配点最明显的图像作为与红外图像最相似的图像。实验结果表明,该方法可以识别出红外图像与可见光图像库相似度最高的可见光图像。
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引用次数: 4
Fire disaster awareness based on microblog messages using Naïve bayes algorithm and key-code language detection technique 基于Naïve贝叶斯算法和密钥码语言检测技术的微博信息火灾感知
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388938
Zhao Ming, R. Ganiyu
In recent years, social media has been an efficient platform for fast dissemination of information. The advent of microblogs however boost disaster awareness immensely as many researchers dive into actively analyzing short messages from various internet users around the globe. Our algorithm hereby employs a method in which Naïve Bayes algorithm was adopted to analyze microblog messages for fire disaster awareness. We also device a language detection algorithm which could overcome language barriers in processing microblog messages extensively. Weibo data of year 2012 was experimented on and an accuracy between 87% and 99% was obtained.
近年来,社交媒体已经成为信息快速传播的有效平台。然而,微博的出现极大地提高了人们的灾难意识,因为许多研究人员都在积极地分析来自全球不同互联网用户的短信。本文算法采用Naïve贝叶斯算法对微博消息进行火灾感知分析。我们还设计了一种语言检测算法,可以克服微博信息处理中的语言障碍。对2012年的微博数据进行实验,准确率在87% ~ 99%之间。
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引用次数: 0
Ground moving target imaging based on motion compensation for circular SAR 基于运动补偿的圆形SAR地面运动目标成像
Pub Date : 2017-11-01 DOI: 10.1109/ICAIT.2017.8388948
Xinyun Wang, B. Deng, Hongqiang Wang, Yuliang Qin
In stationary SAR/CSAR images, ground moving targets are defocused and dislocated due to their unknown motions. This paper presents the moving target imaging algorithm for circular SAR. Considering the characteristic of echo signal of the moving target, additional phase caused by target motion is compensated by estimating motion parameters with along-track interferometry (ATI) technology. After compensation, classic omega-k algorithm is applied to reconstruct the image. Simulation results are given to demonstrate the effectiveness of the proposed method.
在静止SAR/CSAR图像中,地面运动目标由于运动未知而产生离焦和错位。提出了一种圆形SAR运动目标成像算法,考虑到运动目标回波信号的特点,利用沿航迹干涉技术估计运动参数,补偿目标运动引起的附加相位。补偿后,应用经典的ω -k算法重建图像。仿真结果验证了该方法的有效性。
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引用次数: 1
期刊
2017 9th International Conference on Advanced Infocomm Technology (ICAIT)
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