High-precision symbol timing algorithm for specific emitter identification by Yiwei PAN, Hua PENG, Tianyun LI, Wenya WANG

“…The existing symbol timing algorithms have the problems that the method of delay estimation is improper and the calculation precision of the interpolation is insufficient for the pretreatment of specific emitter identification.A high-precision symbol timing algorithm was proposed to solve these problems.Aiming at the former problem,a two-step estimation method was adopted,rough estimation of delay was firstly obtained by the forward algorithm,and then the accurate value was acquired through local search with the demodulated symbols.For the latter problem,a window-based approach was used to design an interpolating filter which could optimize the anti-aliasing characteristics and improve the calculation accuracy.Simulation results show that the proposed algorithm can effectively solve the above problems and achieve better recognition results in the radiation source recognition compared with the conventional symbol timing algorithm.…”
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A Cooperative Coevolutionary Cuckoo Search Algorithm for Optimization Problem by Hongqing Zheng, Yongquan Zhou

“…Taking inspiration from an organizational evolutionary algorithm for numerical optimization, this paper designs a kind of dynamic population and combining evolutionary operators to form a novel algorithm, a cooperative coevolutionary cuckoo search algorithm (CCCS), for solving both unconstrained, constrained optimization and engineering problems. …”
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Multi-level local differential privacy algorithm recommendation framework by Hanyi WANG, Xiaoguang LI, Wenqing BI, Yahong CHEN, Fenghua LI, Ben NIU

“…Local differential privacy (LDP) algorithm usually assigned the same protection mechanism and parameters to different users.However, it ignored the differences among the device resources and the privacy requirements of different users.For this reason, a multi-level LDP algorithm recommendation framework was proposed.The server and the users’ requirements were considered in the framework, and the multi-users’ differential privacy protections were realized by the server and the users’ multi-level management.The framework was applied to the frequency statistics scenario to form an LDP algorithm recommendation scheme.LDP algorithm was improved to ensure the availability of statistical results, and a collaborative mechanism was designed to protect users’ privacy preferences.The experimental results demonstrate the availability of the proposed scheme.…”
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Cognitive radio auto-adaptive sensing algorithm based on POMDP by Rui-chen XU, Ting JIANG

“…In order to design an appropriate spectrum sensing mechanism in millisecond spectrum hole environment,the optimal data transmission time of secondary users was derived to maximize the data throughput.Furthermore,in order to exploit the millisecond spectrum holes,an auto-adaptive spectrum sensing algorithm based on POMDP (partially observ-able Markov decision process) was proposed.This algorithm executes spectrum sensing or data transmission action in the current decision epoch based on the belief vector and the observation result in the last decision epoch.Simulation results show that the proposed algorithm can constrain the collision probability between primary users and secondary users,and improve systemic spectrum utilization at the same time.…”
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An Algorithm for Discretization of Real Value Attributes Based on Interval Similarity by Li Zou, Deqin Yan, Hamid Reza Karimi, Peng Shi

“…The algorithms related to Chi2 algorithm (includes modified Chi2 algorithm and extended Chi2 algorithm) are famous discretization algorithm exploiting the technique of probability and statistics. …”
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An Improved Clustering Algorithm of Tunnel Monitoring Data for Cloud Computing by Luo Zhong, KunHao Tang, Lin Li, Guang Yang, JingJing Ye

“…To solve this problem, an improved parallel clustering algorithm based on k-means has been proposed. It is a clustering algorithm using the MapReduce within cloud computing that deals with data. …”
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Minimum connected dominating set algorithm based on directed diffusion by LI Ke-qing, CHANG Jin-yi, WANG Jia-nian

“…A new minimum connected dominating set algorithm based on directed diffusion MCDSDD was proposed, which attempted to improve the existed area coverage algorithms through introducing node’s gradient in wireless sensor networks. …”
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Simple variable tap‐length algorithm for high‐noise environment by Ying Wei, Zhibin Yan

Subjects: “…simple variable tap‐length algorithm…”
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Indoor positioning algorithm research based on the typicality judgment of RSS by Jia-ying WU, Wei-hong XU, Shun-ming CHEN, Ping LI

“…In the process of indoor location based on RSS fingerprint,the quality of the obtained similar point set is a key factor for a successful position.And the locating point’s RSS is an important reason which affects the quality of the similar point set.By analyzing the distribution of D-RSS,the concept of RSS’s typicality was proposed firstly,and an indoor localization algorithm based on typicality judgment of RSS was also presented.According to the principle that the RSS values and the effective similar sample points,a typicality discrimination method for RSS values and a self-adapting K value were presented.Confirmed by the experiments,the algorithm not only can find the effective similarity sample points completely,but also can eliminate the non-substantive similarities points,and then can adapt to the different scenes,then have the higher positioning accuracy.…”
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Adaptive spectrum sensing algorithm based on cyclostationary spectrum energy by Hao-ye ZHANG, Zhi-hua BAO, Shi-bing ZHANG

“…Focused on the characteristic of cyclostationary spectrum of signal and the spectrum sensing in low signal-to-noise ratio,an adaptive decision threshold spectrum sensing algorithm was proposed,which combines cyclostationary spectrum sensing with energy detection.By weighting the sum of probabilities of detection and false alarm,estimating the eigenvalues of the cyclostationary spectrum,the algorithm provides an adaptive decision threshold which could differentiate the primary signal from the background noise.The simulation results show that the algorithm could perform well in low signal-to-noise ratio and remove the effect of noise uncertainty on the spectrum sensing.It outperforms maximum-minimum eigenvalue and blind detection with 4dB and 8dB respectively in signal-to-noise ratio,and has robustness to different modulated primary signal.…”
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Low-complexity single carrier time domain equalization algorithm by HE Shiwen, GUAN Peiwen, PENG Chengzuo, DENG Xunzhe, AN Zhenyu

“…Simulation results show that compared with the traditional channel equalization algorithms, the proposed algorithm can achieve similar or better performance with lower complexity.…”
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Study on security routing algorithm based on dynamic adjacent trust by Ting HAN, Shou-shan LUO, Yang XIN, Yi-xian YANG, Gong CHENG, Xiao WU

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Chaotic Fruit Fly Algorithm for Solving Engineering Design Problems by M. A. El-Shorbagy

“…The aim of this article is to present a chaotic fruit fly algorithm (CFFA) as an optimization approach for solving engineering design problems (EDPs). …”
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An insulator target detection algorithm based on improved YOLOv5 by Bing Zeng, Zhihao Zhou, Yu Zhou, Dilin He, Zhanpeng Liao, Zihan Jin, Yulu Zhou, Kexin Yi, Yunmin Xie, Wenhua Zhang

“…To address issues with traditional object detection algorithms, such as large parameter counts, low detection accuracy, and high miss rates, this paper proposes an insulator detection algorithm based on an improved YOLOv5 model. …”
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Bit-allocation and rate-control algorithm for stereo video coding by ZHU Zhong-jie 1, LIANG Feng1, JIANG Gang-yi 2, YU Mei2

“…A new bit-allocation and rate-control algorithm for stereo video coding was proposed to improve its coding efficiency and stream reliability.The conventional quadric rate-distortion model was improved and a new one was introduced by incorporating the human visual system（HVS） characteristics.Experimental results show that the improved new rate-distortion model is more precise than the conventional one and the proposed new algorithm can efficiently implement bit allocation and rate control according to coding parameters.…”
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Reversible data hiding algorithm based on asymmetric histogram shifting by Yufen HE, Zhaoxia YIN, Jin TANG, Lei LIU, Shilei HUANG

“…The shifting of two asymmetric histograms in opposite directions in data embedding respectively had produced the pixel compensation and restore effect,a better reversible data hiding algorithm based on pixel prediction was proposed,two asymmetric histograms of prediction error were generated on the more right and the more left side of zero value,when they were shifed in the second data embedding stage,more pixels would be restored to the original image pixel value to reduce image distortion and improve the image quality.Compared with the traditional algorithm,it reduces the amount of pixels involved in the histogram shifting and protects the quality of secret image.…”
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Robust interference alignment algorithm for cognitive MIMO interference network by Shi-lei ZHU, You ZHOU, Xiu-kun REN, Han-ying HU

“…A robust interference alignment algorithm was proposed for underlay cognitive MIMO interference network with imperfect channel-state information (CSI).Firstly,imperfect CSI was characterized by Euclidean ball-shaped uncer-tainty,based on which the optimization model of transmitting precoding and receiving interference subspace matrix was constructed with aimed of minimizing interference leak Then,primary users' interference temperature constraint un-der the worst-case condition was derived according to the matrix norm inequality.Finally,alternate iteration expressions of transceiver matrixes were obtained exploiting Lagrange partial dual-decomposition theory and sub-gradient update method.Moreover,the proposed algorithm's application condition and degrees of freedom range were theoretically ana-lyzed.Simulation results show that the proposed algor m is robust and its secondary users' network performance out-performs existing algorithms'.…”
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No-feedback rate control algorithm for Wyner-Ziv video coding by SONG Bin, YANG Ming-ming, QIN Hao, HE Hong

“…To avoid using feedback channel,an encoder rate control algorithm for Wyner-Ziv video coding was proposed.Firstly,using the target frame-rate and the target bit-rate,It could determine the bit allocation for each group-of-picture（GOP）.According to the correlation between adjacent frames,the bit budget for a GOP were further allocated to key frame and Wyner-Ziv frames within the GOP by dynamically choosing quantization parameter and quantization matrices.Then,with refinement of correlation-noise model（CNM） parameter,different LDPC（low-density parity-check） check matrices might be chosen for each bitplane to control the encoding bitrate of Wyner-Ziv frame.Experimental results show that the difference between expected target bitrate and actual encoded bitrate is less than 0.57% using the proposed method,and compared with existing algorithm,average PSNR（peak signal-to-noise ratio） of decoded video quality can be increased by 1 dB.In addition,our algorithm slightly increases encoder complexity,and can be used in practice.…”
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New signcryption algorithm for secure communication of ad hoc networks by ZHANG Chuan-rong1, ZHANG Yu-qing1, LI Fa-gen3, XIAO Hong2

“…At first, a new identity based signcryption algorithm was proposed; its security and efficiency were analyzed. …”
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Predicting the Optimal Treatment for Diseases Using Whale Optimization Algorithm by Sudad Abed, Zuhal Adel Madlool

“…The Whale Optimization Algorithm (WOA) will be used to improve predictions for effective disease treatments. …”
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