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学者姓名：陈忠辉
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Abstract ：
Aiming at excessive users existing in a pico base station (PBS) in the multi-layer heterogeneous networks, the resource allocation problem of maximizing the energy efficiency of the networks is investigated in this paper. By deploying a relay node with energy harvesting function, the data of some users in the PBS can be transferred to an adjacent idle PBS. The bandwidth and transmitting power of users and the relay node are both considered to formulate the resource allocation optimization problem. The objective is to maximize the energy efficiency of the whole heterogeneous networks under the constraints of the user’s minimum data rate and energy consumption. The suboptimal solution is obtained by using the particle swarm optimization (PSO) algorithm and quantum-behaved particle swarm optimization (QPSO) algorithm. Simulation results show that the adopted methods have higher energy efficiency than the conventional fixed power and bandwidth method. In addition, the time complexity of the adopted methods is relatively low. © 2021, Shanghai Jiao Tong University and Springer-Verlag GmbH Germany, part of Springer Nature.
Keyword ：
A A energy efficiency energy efficiency energy harvesting energy harvesting heterogeneous networks heterogeneous networks TN 915.65 TN 915.65
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| GB/T 7714 | Gao, J. , Zhao, Y. , Chen, J. et al. Energy-Efficient Bandwidth and Power Allocation in Relay-Assisted Multi-Layer Heterogeneous Networks with Energy Harvesting; [具有能量收集的中继辅助多层异构网络的能量高效带宽和功率分配策略] [J]. | Journal of Shanghai Jiaotong University (Science) , 2023 , 28 (6) : 822-830 . |
| MLA | Gao, J. et al. "Energy-Efficient Bandwidth and Power Allocation in Relay-Assisted Multi-Layer Heterogeneous Networks with Energy Harvesting; [具有能量收集的中继辅助多层异构网络的能量高效带宽和功率分配策略]" . | Journal of Shanghai Jiaotong University (Science) 28 . 6 (2023) : 822-830 . |
| APA | Gao, J. , Zhao, Y. , Chen, J. , Chen, Z. . Energy-Efficient Bandwidth and Power Allocation in Relay-Assisted Multi-Layer Heterogeneous Networks with Energy Harvesting; [具有能量收集的中继辅助多层异构网络的能量高效带宽和功率分配策略] . | Journal of Shanghai Jiaotong University (Science) , 2023 , 28 (6) , 822-830 . |
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针对现有研究没有考虑用户移动性对移动边缘计算(mobile edge computing,MEC)服务器反馈计算结果影响的情况,提出一种基于虚拟机迁移的能量收集MEC系统资源分配策略.考虑用户移动性影响,分别给出用户移动性模型和能量收集模型;采用虚拟机迁移方式,把用户卸载给初始MEC服务器的计算任务转移到当前MEC服务器,由当前MEC服务器完成计算任务,计算结果直接反馈给用户;综合考虑用户卸载计算任务和MEC服务器反馈计算结果,将功率和子载波分配问题建模为混合整数非线性规划问题,在满足能量消耗、子载波分配和发射功率的约束条件下,最大化系统能量效率.为了降低求解复杂度,通过引入遗传算法,获得次优解.仿真结果表明,与基于遗传算法的局部功率或子载波分配方法相比,提出的方法具有更高的能量效率.
Keyword ：
移动边缘计算 移动边缘计算 能量收集 能量收集 虚拟机迁移 虚拟机迁移 资源分配 资源分配
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| GB/T 7714 | 方鹏 , 赵宜升 , 刘志超 et al. 基于虚拟机迁移的能量收集MEC系统资源分配策略 [J]. | 重庆邮电大学学报（自然科学版） , 2022 , 34 (1) : 85-93 . |
| MLA | 方鹏 et al. "基于虚拟机迁移的能量收集MEC系统资源分配策略" . | 重庆邮电大学学报（自然科学版） 34 . 1 (2022) : 85-93 . |
| APA | 方鹏 , 赵宜升 , 刘志超 , 陈忠辉 . 基于虚拟机迁移的能量收集MEC系统资源分配策略 . | 重庆邮电大学学报（自然科学版） , 2022 , 34 (1) , 85-93 . |
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针对交通路口的视频监控,传统多路视频组成电视墙的监控方式,存在视频利用率低、单个摄像头视野局限性、信息缺失以及多视角显示凌乱等问题.全景视频是将多个视频流的重叠区域逐帧进行拼接,能在不降低分辨率的同时有效扩大监控人员的视野,已成为交通监控领域的研究热点.本文在分析交通视频监控需求的基础上,研究了视频拼接的相关技术,通过在配准和融合两方面优化拼接算法,在确保输出质量的同时实现快速视频拼接.
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| GB/T 7714 | 陈忠辉 , 唐晓颖 , 魏宏安 . 交通监控视频快速全景拼接算法的研究与实现 [J]. | 现代计算机 , 2021 , 27 (26) : 47-54 . |
| MLA | 陈忠辉 et al. "交通监控视频快速全景拼接算法的研究与实现" . | 现代计算机 27 . 26 (2021) : 47-54 . |
| APA | 陈忠辉 , 唐晓颖 , 魏宏安 . 交通监控视频快速全景拼接算法的研究与实现 . | 现代计算机 , 2021 , 27 (26) , 47-54 . |
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针对移动终端(mobile terminal, MT)从环境射频源收集能量较少的问题,研究基于混合能量收集的移动边缘计算系统资源分配策略。通过在基站覆盖区域内部署多个磁感应能量快速充电站,当MT从环境射频源收集的能量即将耗尽时,在附近的磁感应能量快速充电站补充能量。MT通过移动边缘计算将计算任务分流到边缘服务器。将资源分配问题建模为优化问题,以最小化MTs总能量消耗为目标,同时满足MT最大计算能力、边缘服务器最大计算资源、任务计算总时延和MT电池能量的约束条件。通过引入量子行为粒子群优化算法,获得次优解。仿真结果表明,与标准粒子群优化算法和相等分配边缘服务器计算资源的方法相比,量子行为粒子群优...
Keyword ：
混合能量收集 混合能量收集 移动边缘计算 移动边缘计算 资源分配 资源分配
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| GB/T 7714 | 陈加法 , 赵宜升 , 高锦程 et al. 基于混合能量收集的移动边缘计算系统资源分配策略 [J]. | 重庆邮电大学学报(自然科学版) , 2021 , 33 (02) : 193-201 . |
| MLA | 陈加法 et al. "基于混合能量收集的移动边缘计算系统资源分配策略" . | 重庆邮电大学学报(自然科学版) 33 . 02 (2021) : 193-201 . |
| APA | 陈加法 , 赵宜升 , 高锦程 , 陈忠辉 . 基于混合能量收集的移动边缘计算系统资源分配策略 . | 重庆邮电大学学报(自然科学版) , 2021 , 33 (02) , 193-201 . |
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目前基于视觉的车辆轨迹提取易受光照、动态背景等环境的影响,且视觉无法实现区间内多目标速度的实时检测,故提出基于毫米波雷达的车辆行为检测。首先,利用毫米波雷达探测感兴趣区域(ROI)内车辆方位和速度信息,依据ROI内车辆行驶轨迹分布和速度状态判定车辆驾驶行为,最后制定合理的检测算法。实验结果表明,该算法可有效区分双车道内正常行驶车辆与违规车辆,能够快速准确地检测车辆逆行、变道、超速和掉头等违规行为。
Keyword ：
交通事件检测 交通事件检测 毫米波雷达 毫米波雷达 车辆监控 车辆监控 车辆行为分析 车辆行为分析
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| GB/T 7714 | 魏宏安 , 兰金伙 , 赖黄政 et al. 毫米波雷达的车辆行为监控技术研究与应用 [J]. | 单片机与嵌入式系统应用 , 2020 , 20 (12) : 35-39 . |
| MLA | 魏宏安 et al. "毫米波雷达的车辆行为监控技术研究与应用" . | 单片机与嵌入式系统应用 20 . 12 (2020) : 35-39 . |
| APA | 魏宏安 , 兰金伙 , 赖黄政 , 陈忠辉 . 毫米波雷达的车辆行为监控技术研究与应用 . | 单片机与嵌入式系统应用 , 2020 , 20 (12) , 35-39 . |
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针对毫微微基站(FBS)在不同时间段用户数量的差异,研究了最大化下行总信息量的功率分配问题.不同时间段包含忙时和闲时2个阶段,忙时用户数量较多,闲时用户数量较少.通过部署一个无人机携带的微微基站(PBS-UAV)为多个FBSs闲时的用户提供服务.FBS和PBS-UAV都具有能量收集功能.在FBS忙时,FBS和PBSUAV同时从宏基站收集能量,并且向用户发送数据.FBS闲时,由PBS-UAV接替多个FBSs,与用户进行下行通信.将功率分配问题建模为最优化问题,以最大化FBS和PBS-UAV的下行信息量为目标,同时满足FBS和PBS-UAV能量消耗及发射功率的约束条件.由于建立的最优化问题是凸优化...
Keyword ：
功率分配 功率分配 无人机 无人机 能量收集 能量收集
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| GB/T 7714 | 刘志超 , 赵宜升 , 高锦程 et al. 基于射频能量收集的无人机协助的分时段功率分配策略 [J]. | 北京邮电大学学报 , 2020 , 43 (03) : 24-31 . |
| MLA | 刘志超 et al. "基于射频能量收集的无人机协助的分时段功率分配策略" . | 北京邮电大学学报 43 . 03 (2020) : 24-31 . |
| APA | 刘志超 , 赵宜升 , 高锦程 , 陈忠辉 . 基于射频能量收集的无人机协助的分时段功率分配策略 . | 北京邮电大学学报 , 2020 , 43 (03) , 24-31 . |
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In this study, the problem of adaptive modulation and frame length (AMFL) is investigated in long-term evolution for railway (LTE-R) communication system. By considering the effect of frame length, a novel AMFL strategy based on Moore state machine (MSM) is proposed. The influence of the frame length on the goodput is discussed by theoretical analysis and simulation evaluation. According to modulation and frame length schemes (MFLSs) adopted in LTE-R system, the finite state set of the MSM is designed. For different MFLSs, the frame error rate (FER) and signal-to-noise ratio (SNR) curve is obtained. By giving a target FER, the SNR thresholds corresponding to different MFLSs are achieved. From the perspectives of modulation priority and frame length priority, two different AMFL-MSMs are designed to change MFLSs dynamically. Simulation results show that the proposed two AMFL-MSMs have more stable goodput than the common modulation schemes and less symbol energy consumption than the high-order modulation scheme. In addition, the AMFL-MSM with modulation priority has better performance than the AMFL-MSM with frame length priority in terms of goodput stability.
Keyword ：
adaptive modulation adaptive modulation AMFL-MSM AMFL-MSM error statistics error statistics finite state machines finite state machines frame error rate frame error rate frame length priority frame length priority goodput stability goodput stability Long Term Evolution Long Term Evolution LTE-R communication system LTE-R communication system MFLSs MFLSs modulation priority modulation priority Moore state machine Moore state machine railway communication railway communication railway communication system railway communication system
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| GB/T 7714 | Chen, Mengjia , Zhao, Yisheng , Gao, Jincheng et al. Adaptive modulation and frame length method based on Moore state machine in LTE-R communication system [J]. | IET COMMUNICATIONS , 2020 , 14 (8) : 1327-1334 . |
| MLA | Chen, Mengjia et al. "Adaptive modulation and frame length method based on Moore state machine in LTE-R communication system" . | IET COMMUNICATIONS 14 . 8 (2020) : 1327-1334 . |
| APA | Chen, Mengjia , Zhao, Yisheng , Gao, Jincheng , Chen, Zhonghui . Adaptive modulation and frame length method based on Moore state machine in LTE-R communication system . | IET COMMUNICATIONS , 2020 , 14 (8) , 1327-1334 . |
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Aiming at the difference of users in different time periods for the femto base station (FBS),the power allocation problem of maximizing the total downlink information is investigated.The different time periods include busy time and spare time.There are more users in the busy time and less users in the spare time.By deploying a pico base station carried by unmanned aerial vehicle (PBS-UAV),it provides services for users of multiple FBSs in spare time.Both the FBS and PBS-UAV have energy harvesting function.During the busy time,the FBS and PBS-UAV simultaneously harvest energy from the macro base station,and FBSs transmit data to users.During the spare time,multiple FBSs are replaced by the PBS-UAV to communicate with users in downlink.The power allocation problem is modeled as an optimization problem.The objective is to maximize the amount of downlink information of FBSs and PBS-UAV while satisfying the constraints of FBS and PBS-UAV energy consumption and transmission power.Because the formulated optimization problem is a convex optimization problem,the optimal solution is obtained by using an augmented Lagrange multiplier method.Simulations show that compared with the equal power method and partial fixed power method with PBS-UAV,the proposed method has an increase in terms of total information to different degrees. © 2020, Editorial Department of Journal of Beijing University of Posts and Telecommunications. All right reserved.
Keyword ：
Antennas Antennas Base stations Base stations Constraint satisfaction problems Constraint satisfaction problems Convex optimization Convex optimization Energy harvesting Energy harvesting Energy utilization Energy utilization Femtocell Femtocell Lagrange multipliers Lagrange multipliers Unmanned aerial vehicles (UAV) Unmanned aerial vehicles (UAV) Vehicle transmissions Vehicle transmissions
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| GB/T 7714 | Liu, Zhi-Chao , Zhao, Yi-Sheng , Gao, Jin-Cheng et al. UAV-Assisted Time Division Power Allocation Strategy Based on RF Energy Harvesting [J]. | Journal of Beijing University of Posts and Telecommunications , 2020 , 43 (3) : 24-31 . |
| MLA | Liu, Zhi-Chao et al. "UAV-Assisted Time Division Power Allocation Strategy Based on RF Energy Harvesting" . | Journal of Beijing University of Posts and Telecommunications 43 . 3 (2020) : 24-31 . |
| APA | Liu, Zhi-Chao , Zhao, Yi-Sheng , Gao, Jin-Cheng , Chen, Zhong-Hui . UAV-Assisted Time Division Power Allocation Strategy Based on RF Energy Harvesting . | Journal of Beijing University of Posts and Telecommunications , 2020 , 43 (3) , 24-31 . |
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针对实际场景与成像设备之间存在的视角误差导致成像图像产生畸变的问题,提出了一种畸变图像自适应校正及质量增强算法.首先,利用透视变换来纠正这种畸变,通过对图像做灰度化、滤波、边缘和直线检测等处理来自适应透视变换矩阵;其次,变换后的图像存在内容及边缘模糊的问题,采用质量增强的方法进行进一步处理;最后,采用无参考图像质量评价的算法作为客观评价指标来评估处理后图像清晰度是否有所提高.理论分析和仿真结果表明,与传统图像校正算法相比较,通过图像质量增强能提高校正后图像的清晰程度,增强图像边缘轮廓,丰富图像的细节层次.
Keyword ：
图像质量评价 图像质量评价 畸变图像 畸变图像 自适应校正 自适应校正 质量增强 质量增强 透视变换 透视变换
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| GB/T 7714 | 陈忠辉 , 唐晓颖 , 林志权 et al. 畸变图像自适应校正及质量增强算法研究与实现 [J]. | 计算机应用 , 2020 , 40 (z1) : 180-184 . |
| MLA | 陈忠辉 et al. "畸变图像自适应校正及质量增强算法研究与实现" . | 计算机应用 40 . z1 (2020) : 180-184 . |
| APA | 陈忠辉 , 唐晓颖 , 林志权 , 魏宏安 . 畸变图像自适应校正及质量增强算法研究与实现 . | 计算机应用 , 2020 , 40 (z1) , 180-184 . |
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人流量实时检测可以为大数据分析提供数据来源,使决策规划更具科学性,为保障社会安全与提高经济发展提供帮助.目前市场上的人流量检测方法分为接触式与非接触式检测,存在设备昂贵、错检率较高等问题.本文将雷达采集和处理后得到的数据经过运动方向判决以及人流量计算,再把结果在上位机的可视化界面中实时显示,设计实现了基于调频连续泼雷达的人流量检测系统.本文介绍了调频连续波雷达的测量原理、检测算法设计、可视化界面以及系统硬件组成,最后通过测试证明本文设计的算法行之有效,系统性能满足需求,具有推广价值.
Keyword ：
IWR1642 IWR1642 人流量统计 人流量统计 算法设计 算法设计 调频连续波雷达 调频连续波雷达
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| GB/T 7714 | 陈忠辉 , 赖黄政 , 兰金伙 et al. FMCW雷达的人流量检测算法的研究 [J]. | 单片机与嵌入式系统应用 , 2020 , 20 (10) : 34-38 . |
| MLA | 陈忠辉 et al. "FMCW雷达的人流量检测算法的研究" . | 单片机与嵌入式系统应用 20 . 10 (2020) : 34-38 . |
| APA | 陈忠辉 , 赖黄政 , 兰金伙 , 魏宏安 . FMCW雷达的人流量检测算法的研究 . | 单片机与嵌入式系统应用 , 2020 , 20 (10) , 34-38 . |
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