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多策略改进的蜣螂搜索算法优化3DDV-Hop节点定位被引量：1
《重庆邮电大学学报（自然科学版）》2024年第3期438-449,共12页彭铎 陈江旭 张倩 吴海涛 王婵飞 
国家自然科学基金项目(62265010,62061024);甘肃省高校创新基金项目(2020A-021)。
为了提升传统3DDV-Hop算法的定位精度和稳定性,提出了MIDBO-3DDV-Hop算法。该算法利用多策略改进蜣螂搜索算法(multi strategy improvement dung beetle optimizer, MIDBO)来提高3DDV-Hop算法的定位精度。该算法通过通信半径分级方法细...
关键词：蜣螂搜索算法 3DDV-Hop 变螺旋策略 Levy飞行策略 平均跳距 
基于可靠锚节点和粒子群优化的DV⁃Hop算法被引量：4
《现代电子技术》2021年第13期13-16,共4页李同锋 杜秀娟 谢平 杨帆 
青海省自然科学基金面上项目(2020⁃ZJ⁃926);青海师范大学中青年基金项目(1001/107010539)。
DV⁃Hop定位算法是无线传感器网络经典的定位算法之一,在深入分析DV⁃Hop算法误差来源的基础上,对该算法的后两个阶段进行改进:在第二阶段,选用可信度较高的锚节点和跳数修正因子计算平均跳距;在第三阶段,综合考虑满足定位条件的锚节点的...
关键词：DV⁃Hop算法 无线传感器网络 锚节点 跳数修正 PSO算法 平均跳距 未知节点 定位算法 
Performance analysis of dual-hop UAV relaying systems over mixed fluctuating two-ray and Nakagami-m fading channels
《Science China(Information Sciences)》2021年第4期96-98,共3页Yongshun ZHANG Jiayi ZHANG Kostas PPEPPAS Bo AI 
supported in part by Science and Technology Key Project of Guangdong Province China(Grant No.2019B010157001);Royal Society Newton Advanced Fellowship(Grant No.NA191006);National Natural Science Foundation of China(Grant Nos.61971027,U1834210,61961130391);Beijing Natural Science Foundation(Grant No.L202013);Open Research Fund of the State Key Laboratory of Integrated Services Networks(Grant No.ISN20-04);the ZTE Corporation,and State Key Laboratory of Mobile Network and Mobile Multimedia Technology。
Dear editor,Unmanned aerial vehicles(UAVs)perform a variety of civilian tasks,including disaster detection,weather forecasting and environmental monitoring.UAV-aided communications can provide flexible wireless connec...
关键词：DISASTER VERSATILE fluctuating 
基于HOPE-CTC的端到端语音识别被引量：3
《计算机工程与设计》2021年第2期462-467,共6页徐冬冬 蒋志翔 
装备发展部信息系统局“十三五”预研课题基金项目(31511040401);装备预研领域基金项目(61400040201)。
为增强端到端语音识别模型的鲁棒性和特征提取的有效性,对瓶颈特征提取网络进行研究,提出采用基于联合优化正交投影和估计的端到端语音识别模型。通过连接时序分类损失函数训练瓶颈特征提取网络,摆脱对语言学和对齐信息的先验知识的依赖...
关键词：联合优化正交投影和估计 连接时序分类 注意力机制 端到端模型 瓶颈特征 
Anchor Selection for Topology Inference and Routing in Wireless Sensor Networks
《Journal of Communications and Information Networks》2020年第3期318-323,共6页Taha Bouchoucha Zhi Ding 
This work was supported by National Science Foundation under Grant NSF 2009001.
Anchor-based ad-hoc networks utilize hop measurements to generate a virtual coordinate system for topology inference and routing applications.A common problem with such coordinate system is its sensitivity to anchor p...
关键词：anchor selection CONNECTIVITY hop distance ROUTING 
Dual-Hop Deep Space-Terrestrial FSO/RF Communication under Solar Scintillation: Performance Analysis and Challenges
《China Communications》2020年第7期27-37,共11页Guanjun Xu Zhengqi Zheng Weizhi Wang 
supported in part by the National Natural Science Foundation of China(No.61801181,61831008,61771197);The Open Research Fund of Key Laboratory for Information Science of Electromagnetic Waves(MoE)(No.EMW201902);The Verification Platform of Multi-tier Coverage Communication Network for Oceans(No.LZC0020)。
Deep space communication has been a fundamental guarantee for space exploration but encounters solar scintillation during superior solar conjunction.In this paper,a paradigm for deep space-terrestrial free space optic...
关键词：FSO DEEP TERRESTRIAL 
Optimal Micro⁃Task Scheduling for Multi⁃Hop D2D⁃Enabled Mobile Edge Computing
《Journal of Harbin Institute of Technology(New Series)》2020年第3期196-204,共9页Lin Gao Qinyu Zhang 
National Natural Science Foundation of China(Grant Nos.61831008,61525103 and 61972113);the Guangdong Science and Tech⁃nology Planning Project(Grant No.2018B030322004);the Basic Research Project of Shenzhen Science and Technology Program(Grant No.JCYJ20190806112215116).
Mobile Edge Computing(MEC)is a promising solution to tackle the upcoming computing tsunami in 5G/6G era by effectively utilizing the idle resource at the mobile edge.In this work,a multi⁃hop D2D⁃enabled MEC scenario w...
关键词：mobile edge computing micro⁃task scheduling multi⁃hop D2D 
On Improved DV-Hop Localization Algorithm for Accurate Node Localization in Wireless Sensor Networks被引量：15
《Chinese Journal of Electronics》2019年第3期658-666,共9页SHEN Shikai YANG Bin QIAN Kaiguo SHE Yumei WANG Wu 
supported by the Yunnan Applied Basic Research Project,Scientific and Technological Innovation Team of IOT Application Technology of Kunming(No.2016-2-R-07793);Scientific Research and Innovation Team of Kunming University based on IOT Technology(No.2015CXTD04);the Anhui NSF(No.1808085MF165);the Anhui Province Department of Human Resources and Social Security for the Returned Overseas Chinese Scholars,the Chuzhou University(No.zrjz2017003);the Science and Technology Project of Sichuan Province(No.2017JY0049)
Node Localization is a fundamental issue for many critical applications in Wireless sensor networks(WSNs). Traditional DV-Hop localization algorithm and corresponding improved ones still cannot provide sufficient loca...
关键词：Wireless sensor networks Node LOCALIZATION IMPROVED Distance-vector-Hop(DV-Hop) LOCALIZATION algorithm LOCALIZATION accuracy 
Cognitive amplify-and-forward dual-hop relay networks over α-μ fading channels被引量：2
《Journal of Measurement Science and Instrumentation》2019年第1期69-75,共7页HAN Yan-bo GAO Li YAN Wen-hua 
National Natural Science Foundation of China(No.61461024)
This paper provides an analytic performance evaluation of dual-hop cognitive amplify-and-forward (AF) relaying networks over independent nonidentically distributed (i.n.i.d.) fading channels. Two different transmit po...
关键词：cognitive relay network amplify-and-forward relay outage probability α-μ fading channels 
Determination of Array Gain of Single Hop to Achieve the Performance of a 2-Hop Wireless Link
《Journal of Computer and Communications》2018年第7期84-98,共15页Abu Sayed Md. Mostafizur Rahaman Jesmin Akhter Md. Rafsan Jani Md. Imdadul Islam 
In adaptive beamforming system adaptive algorithm of digital filter is applied to update the weighting vector of the antenna elements to get antenna gain along the desired direction and attenuation along the jammer. T...
关键词：ARRAY Antenna System BER THRESHOLD ARRAY GAIN Side LOBE Canceller Path Loss 
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