Chinese Journal of Electronics最新文献_第2页

A Fast Algorithm for Computing the Deficiency Number of a Mahjong Hand 计算麻将手牌不足数的快速算法

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2022.00.259

Xueqing Yan;Yongming Li;Sanjiang Li

引用次数: 0

Wideband Circularly Polarized Substrate-Integrated Waveguide Aperture-Coupled Metasurface Antenna Array for Millimeter-Wave Applications 用于毫米波应用的宽带圆极化基底集成波导孔径耦合元面天线阵列

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2023.00.029

Jiwei Lian;Chun Geng;Xue Lu;Dazhi Ding

{"title":"Wideband Circularly Polarized Substrate-Integrated Waveguide Aperture-Coupled Metasurface Antenna Array for Millimeter-Wave Applications","authors":"Jiwei Lian;Chun Geng;Xue Lu;Dazhi Ding","doi":"10.23919/cje.2023.00.029","DOIUrl":"https://doi.org/10.23919/cje.2023.00.029","url":null,"abstract":"A wideband circularly polarized (CP) aperture-coupled metasurface antenna operating at millimeter-wave frequency spectrum in substrate-integrated waveguide (SIW) technology is proposed. The proposed metasurface antenna is composed of two substrates. The first substrate contains an end-shorted SIW section with a slot etched. The introduced metasurface is printed on the top of the second substrate. The metasurface is comprised of \u0000<tex>$3 times 3$</tex>\u0000 unit cells, each of which contains two interconnected patches and two parasitic patches. The working mechanism of the proposed metasurface antenna is illustrated in details. The proposed metasurface antenna has wide impedance bandwidth and axial ratio (AR) bandwidth, which are 66.7% and 40%, respectively. Using the proposed metasurface antenna, a \u0000<tex>$4 times 4$</tex>\u0000 CP metasurface antenna array with an impedance bandwidth of 24%, an AR bandwidth of 30%, and a peak gain of 18.7 dBic in simulation is developed in this paper for millimeter-wave applications.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"33 6","pages":"1468-1477"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748535","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Virtual Coupling Trains Based on Multi-Agent System Under Communication Delay 通信延迟下基于多代理系统的虚拟耦合列车

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2022.00.253

Guodong Qin;Xiangxi Meng;Tao Wen;Baigen Cai

引用次数: 0

Federated Offline Reinforcement Learning with Proximal Policy Evaluation 具有近端策略评估功能的联合离线强化学习

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2023.00.288

Sheng Yue;Yongheng Deng;Guanbo Wang;Ju Ren;Yaoxue Zhang

{"title":"Federated Offline Reinforcement Learning with Proximal Policy Evaluation","authors":"Sheng Yue;Yongheng Deng;Guanbo Wang;Ju Ren;Yaoxue Zhang","doi":"10.23919/cje.2023.00.288","DOIUrl":"https://doi.org/10.23919/cje.2023.00.288","url":null,"abstract":"Offline reinforcement learning (RL) has gathered increasing attention in recent years, which seeks to learn policies from static datasets without active online exploration. However, the existing offline RL approaches often require a large amount of pre-collected data and hence are hardly implemented by a single agent in practice. Inspired by the advancement of federated learning (FL), this paper studies federated offline reinforcement learning (FORL), whereby multiple agents collaboratively carry out offline policy learning with no need to share their raw trajectories. Clearly, a straightforward solution is to simply retrofit the off-the-shelf offline RL methods for FL, whereas such an approach easily overfits individual datasets during local updating, leading to instability and subpar performance. To overcome this challenge, we propose a new FORL algorithm, named model-free (MF)-FORL, that exploits novel “proximal local policy evaluation” to judiciously push up action values beyond local data support, enabling agents to capture the individual information without forgetting the aggregated knowledge. Further, we introduce a model-based variant, MB-FORL, capable of improving the generalization ability and computational efficiency via utilizing a learned dynamics model. We evaluate the proposed algorithms on a suite of complex and high-dimensional offline RL benchmarks, and the results demonstrate significant performance gains over the baselines.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"33 6","pages":"1360-1372"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748547","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Model Checking Computation Tree Logic Over Multi-Valued Decision Processes and Its Reduction Techniques 多值决策过程的计算树逻辑模型检查及其还原技术

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2021.00.333

Wuniu Liu;Junmei Wang;Qing He;Yongming Li

{"title":"Model Checking Computation Tree Logic Over Multi-Valued Decision Processes and Its Reduction Techniques","authors":"Wuniu Liu;Junmei Wang;Qing He;Yongming Li","doi":"10.23919/cje.2021.00.333","DOIUrl":"https://doi.org/10.23919/cje.2021.00.333","url":null,"abstract":"Model checking computation tree logic based on multi-valued possibility measures has been studied by Li et al. on Information Sciences in 2019. However, the previous work did not consider the nondeterministic choices inherent in systems represented by multi-valued Kripke structures (MvKSs). This nondeterminism is crucial for accurate system modeling, decision making, and control capabilities. To address this limitation, we draw inspiration from the generalization of Markov chains to Markov decision processes in probabilistic systems. By integrating nondeterminism into MvKS, we introduce multi-valued decision processes (MvDPs) as a framework for modeling MvKSs with nondeterministic choices. We investigate the problems of model checking over MvDPs. Verifying properties are expressed by using multi-valued computation tree logic based on schedulers. Our primary objective is to leverage fixpoint techniques to determine the maximum and minimum possibilities of the system satisfying temporal properties. This allows us to identify the optimal or worst-case schedulers for decision making or control purposes. We aim to develop reduction techniques that enhance the efficiency of model checking, thereby reducing the associated time complexity. We mathematically demonstrate three reduction techniques that improve model checking performance in most scenarios.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"33 6","pages":"1399-1411"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748381","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-Mode Resonant Sectorial Monopole Antenna with Stable Backfire Gain 具有稳定背射增益的双模谐振扇形单极天线

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2023.00.032

Feiyan Ji;Heng Zhang;Xiuqiong Xing;Wenjun Lu;Lei Zhu

引用次数: 0

Performance Analysis of Spatial Modulation Aided UAV Communication Systems in Cooperative Relay Networks 合作中继网络中空间调制辅助无人机通信系统的性能分析

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2021.00.369

Xiangbin Yu;Mingfeng Xie;Ning Li;Cuimin Pan

{"title":"Performance Analysis of Spatial Modulation Aided UAV Communication Systems in Cooperative Relay Networks","authors":"Xiangbin Yu;Mingfeng Xie;Ning Li;Cuimin Pan","doi":"10.23919/cje.2021.00.369","DOIUrl":"https://doi.org/10.23919/cje.2021.00.369","url":null,"abstract":"In this paper, by introducing the spatial modulation (SM) scheme into the unmanned aerial vehicle (UAV) relaying system, an SM-aided UAV (SM-UAV) cooperative relay network is presented. The performance of the SM-UAV relay network is investigated over \u0000<tex>$text{Nakagami}-m$</tex>\u0000 fading channels, where the UAV remains stationary over a given area. According to the performance analysis, using the amplify-and-forward (AF) protocol, the effective signal-to-noise ratio (SNR) and the corresponding probability density function and moment generating function are, respectively, derived. With these results, the average bit error rate (BER) is further deduced, and resultant approximate closed-form expression is achieved. Based on the approximate BER, we derive the asymptotic BER to characterize the error performance of the system at high SNR. With this asymptotic BER, the diversity gain of the system is derived, and the resulting diversity order is attained. Simulation results illustrate the effectiveness of the performance analysis. Namely, approximate BER has the value close to the simulated one, and asymptotic BER can match the corresponding simulation well at high SNR. Thus, the BER performance of the system can be effectively assessed in theory, and conventional simulation will be avoided. Besides, the impacts of the antenna number, modulation order, fading parameter, and UAV position on the system performance are also analyzed. The results indicate that the BER performance is increased with the increases of Nakagami parameter \u0000<tex>$m$</tex>\u0000 and/or receive antenna and/or the decrease of modulation order.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"33 6","pages":"1492-1503"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748544","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Subspace Clustering via Block-Diagonal Decomposition 通过块对角分解进行子空间聚类

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2022.00.385

Zhiqiang Fu;Yao Zhao;Dongxia Chang;Yiming Wang

{"title":"Subspace Clustering via Block-Diagonal Decomposition","authors":"Zhiqiang Fu;Yao Zhao;Dongxia Chang;Yiming Wang","doi":"10.23919/cje.2022.00.385","DOIUrl":"https://doi.org/10.23919/cje.2022.00.385","url":null,"abstract":"The subspace clustering has been addressed by learning the block-diagonal self-expressive matrix. This block-diagonal structure heavily affects the accuracy of clustering but is rather challenging to obtain. A novel and effective subspace clustering model, i.e., subspace clustering via block-diagonal decomposition (SCBD), is proposed, which can simultaneously capture the block-diagonal structure and gain the clustering result. In our model, a strict block-diagonal decomposition is introduced to directly pursue the \u0000<tex>$k$</tex>\u0000 block-diagonal structure corresponding to \u0000<tex>$k$</tex>\u0000 clusters. In this novel decomposition, the self-expressive matrix is decomposed into the block indicator matrix to demonstrate the cluster each sample belongs to. Based on the strict block-diagonal decomposition, the block-diagonal shift is proposed to capture the local intra-cluster structure, which shifts the samples in the same cluster to get smaller distances and results in more discriminative features for clustering. Extensive experimental results on synthetic and real databases demonstrate the superiority of SCBD over other state-of-the-art methods.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"33 6","pages":"1373-1382"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748550","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Privacy-Preserving WiFi Fingerprint Localization from CL Encryption 通过 CL 加密实现增强型隐私保护 WiFi 指纹定位

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2022.00.257

Zhiwei Wang;Qiuchi Zhu;Zhenqi Zhang

{"title":"Enhanced Privacy-Preserving WiFi Fingerprint Localization from CL Encryption","authors":"Zhiwei Wang;Qiuchi Zhu;Zhenqi Zhang","doi":"10.23919/cje.2022.00.257","DOIUrl":"https://doi.org/10.23919/cje.2022.00.257","url":null,"abstract":"The WiFi fingerprint-based localization method is considered one of the most popular techniques for indoor localization. In INFOCOM'14, Li et al. proposed a wireless fidelity (WiFi) fingerprint localization system based on Paillier encryption, which is claimed to protect both client \u0000<tex>$C{{}^{prime}mathrm{s}}$</tex>\u0000 location privacy and service provider \u0000<tex>$S{{}^{prime}mathrm{s}}$</tex>\u0000 database privacy. However, Yang et al. presented a practical data privacy attack in INFOCOM'18, which allows a polynomial time attacker to obtain \u0000<tex>$S{{}^{prime}mathrm{s}}$</tex>\u0000 database. We propose a novel WiFi fingerprint localization system based on Castagnos-Laguillaumie (CL) encryption, which has a trustless setup and is efficient due to the excellent properties of CL encryption. To prevent Yang et al.'s attack, the system requires that \u0000<tex>$S$</tex>\u0000 selects only the locations from its database that can receive the nonzero signals from all the available access points in \u0000<tex>$C{{}^{prime}mathrm{s}}$</tex>\u0000 nonzero fingerprint in order to determine \u0000<tex>$C{{}^{prime}mathrm{s}}$</tex>\u0000 location. Security analysis shows that our scheme is secure under Li et al.'s threat model. Furthermore, to enhance the security level of privacy-preserving WiFi fingerprint localization scheme based on CL encryption, we propose a secure and efficient zero-knowledge proof protocol for the discrete logarithm relations in \u0000<tex>$C{{}^{prime}mathrm{s}}$</tex>\u0000 encrypted localization queries.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"33 6","pages":"1435-1446"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748541","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Priority Encoder Based on DNA Strand Displacement 基于 DNA 链位移的优先级编码器

IF 1.6 4区计算机科学

Chinese Journal of Electronics Pub Date : 2024-11-11 DOI: 10.23919/cje.2022.00.042

Fang Wang;Xinjian Zhang;Xin Chen;Shuying Lyu;Congzhou Chen;Xiaolong Shi

{"title":"Priority Encoder Based on DNA Strand Displacement","authors":"Fang Wang;Xinjian Zhang;Xin Chen;Shuying Lyu;Congzhou Chen;Xiaolong Shi","doi":"10.23919/cje.2022.00.042","DOIUrl":"https://doi.org/10.23919/cje.2022.00.042","url":null,"abstract":"The slow development of traditional computing has prompted the search for new materials to replace silicon-based computers. Bio-computers, which use molecules as the basis of computation, are highly parallel and information capable, attracting a lot of attention. In this study, we designed a NAND logic gate based on the DNA strand displacement mechanism. We assembled a molecular calculation model, a 4-wire-2-wire priority encoder logic circuit, by cascading the proposed NAND gates. Different concentrations of input DNA chains were added into the system, resulting in corresponding output, through DNA hybridization and strand displacement. Therefore, it achieved the function of a priority encoder. Simulation results verify the effectiveness and accuracy of the molecular NAND logic gate and the priority coding system presented in this study. The unique point of this proposed circuit is that we cascaded only one kind of logic gate, which provides a beneficial exploration for the subsequent development of complex DNA cascade circuits and the realization of the logical coding function of information.","PeriodicalId":50701,"journal":{"name":"Chinese Journal of Electronics","volume":"33 6","pages":"1538-1544"},"PeriodicalIF":1.6,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10748548","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142600351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0