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Design and optimization of a 0.5 V CMOS LNA for 2.4-GHz WSN application

Journal of Semiconductors 2012年第10期33卷 109-115页

作者：陈亮李智群 Institute of RF-&OE-ICs Southeast University Engineering Research Center of RF-ICs&RF-Systems Ministry of EducationSoutheast University Jiangsu Provincial Key Laboratory of Sensor Network Technology

This paper presents a low noise amplifier（LNA）,which could work at an ultra-low voltage of 0.5 V and was optimized for WSN application using 0.13μm RF-CMOS *** circuit was analyzed and a new optimization method for a folded cascode LNA was *** results of the proposed circuit demonstrated a power gain of 14.13 dB,consuming 3 mW DC power,showing 1.96 dB NF and an input 1-dB compression point of -19.9 *** input power matching（S_（11）） and output power matching（S_（22）） were below -10 *** results indicate that this LNA is fully applicable to low voltage and low power applications.

关键词： LNA WSN CMOS

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Design of low power common-gate low noise amplifier for 2.4 GHz wireless sensor network applications

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Journal of Semiconductors 2012年第10期33卷 85-91页

作者：张萌李智群 Institute of RF-&OE-ICs Southeast University Engineering Research Center of RF-ICs&RF-Systems Ministry of EducationSoutheast University Jiangsu Provincial Key Laboratory of Sensor Network Technology

This paper presents a differential low power low noise amplifier designed for the wireless sensor network （WSN） in a TSMC 0.18μm RF CMOS process.A two-stage cross-coupling cascaded common-gate（CG） topology has been designed as the *** first stage is a capacitive cross-coupling *** can reduce the power and noise *** second stage is a positive feedback cross-coupling topology,used to set up a negative resistance to enhance the equivalent Q factor of the inductor at the load to improve the gain of the LNA.A differential inductor has been designed as the load to achieve reasonable *** inductor has been simulated by the means of momentum electromagnetic simulation in ADS.A ＂double-π＂ circuit model has been built as the inductor model by iteration in *** inductor has been fabricated separately to verify the model. The LNA has been fabricated and *** LNA works well centered at 2.44 *** measured gain S_（21） is variable with high gain at 16.8 dB and low gain at 1 *** NF（noise figure） at high gain mode is 3.6 dB,the input referenced 1 dB compression point（IP1dB） is about -8 dBm and the IIP3 is 2 dBm at low gain *** LNA consumes about 1.2 mA current from 1.8 V power supply.

关键词： low noise amplifier wireless sensor network low power inductor modeling cross-coupling positive feedback

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Fiber to the Room: Key Technologies, Challenges, and Future Prospects

arXiv

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arXiv 2025年

作者： Cai, Jinhan Zhang, Xiaolong Wang, Xiang Chang, Tianhai Shen, Gangxiang Jiangsu Provincial Laboratory for Advanced Optical Transmission and Switching Networks Jiangsu New Optical Fiber Technology and Communication Network Engineering Research Center Suzhou Key Laboratory of Advanced Optical Communication Network Technology School of Electronic and Information Engineering Soochow University Jiangsu Province 215006 China Huawei Technology China

Fiber to the Room (FTTR) is a next-generation access network designed to deliver high bandwidth, low latency, and room-level optical coverage. This paper presents a comprehensive analysis of the FTTR system architecture and protocol stack, focusing on three key technical aspects: centralized scheduling and control, integrated management and maintenance, and green energy-saving mechanisms. A simplified FTTR architecture based on the convergence of the medium access control (MAC) and physical (PHY) layers is introduced to enhance coordination and scheduling efficiency. An extended remote management scheme, based on the optical network unit management and control interface (OMCI), is described to enable unified control across main fiber units (MFUs) and sub-fiber units (SFUs). Furthermore, a service-aware energy-saving framework is discussed for dynamic power optimization. The paper also explores the integration of artificial intelligence (AI) and passive sensing into FTTR systems to support intelligent scheduling, energy management, and environment-aware optimization. These insights provide technical guidance for the scalable deployment and future evolution of FTTR networks. Copyright © 2025, The Authors. All rights reserved.

关键词： Fiber to the x

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An electromagnetic-triboelectric hybrid generator (ETHG) for harvesting broadband and multi-directional vibration energy from transmission lines

Next Energy

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Next Energy 2025年 7卷

作者： Liu, Huicong Wang, Zizhao Shang, Yurui Li, Zhenming Tang, Wei Li, Zhen Liu, Wei Liu, Mingyang Sun, Yuyang Lu, Yongling School of Mechanical and Electric Engineering Jiangsu Provincial Key Laboratory of Advanced Robotics Soochow University Suzhou 215006 China CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences Beijing 101400 China Energy Storage and Electrotechnics Department China Electric Power Research Institute Beijing 100192 China College of Engineering Center for Agricultural Flexible Electronics Technology China Agricultural University Beijing 100083 China State Grid Jiangsu Electric Power Company Research Institute State Grid Nanjing 211100 China

Given the ubiquity of wind-induced vibrations on transmission lines, harvesting this energy to power wireless sensors is crucial for developing smart grids toward the electric Internet of Things (eIoT). This paper introduces a high-power electromagnetic-triboelectric hybrid generator (ETHG) as a self-powered solution for smart grid monitoring, addressing limitations of existing generators, including single-direction operation, narrow working bandwidth, and low output power. The ETHG utilizes an innovative pick-up unit featuring a multi-spring mass structure to harvest vibration energy from arbitrary directions and multiple frequencies ranging from 14 to 24 Hz. The electromagnetic generator (EMG) component adopts a multiple magnet-coil arrangement to generate high current and output power. The origami-inspired triboelectric nanogenerator (origami-TENG) component, made of folded conductive fabrics and conductive fabric/fluorinated ethylene propylene (FEP) elastic strips, offers advantages of ultralight and high voltage output. By seamlessly integrating a pickup unit with a hybrid power generation module featuring complementary signals, ETHG performance is enhanced in an aeolian vibration environment characterized by random, low-level excitations. Under a 1 g sweep excitation along the Z-axis with a 5-fold origami configuration, the EMG and TENG components achieve maximum voltage outputs of 3.28 and 523.8 V, with corresponding power outputs reaching 46.9 and 8.2 mW, respectively. Compared to relevant reported generators from transmission line vibrations, the normalized power density of 0.88 mW/cm³·g² is improved by one order of magnitude. A power management circuit (PMC) is proposed to efficiently manage the electromagnetic-triboelectric hybrid signals, increasing the EMG and TENG charging speeds by 172 and 333%, respectively, compared to a rectifier bridge scheme. A vibration energy harvesting system (VEHS) comprising multiple ETHGs and a PMC sup

关键词： Hybrid generator Multidirectional Self-powered sensing Transmission line vibration Wide bandwidth

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research On TEEN With network Coding 2

Research On TEEN With Network Coding

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2017 IEEE 2nd Information technology, networking, Electronic and Automation Control Conference (ITNEC 2017)

作者： Jiazheng Wang Linghua Zhang College of Telecommunication & Information Engineering NJUPT Jiangsu Provincial Engineering Research Center of Telecommunications and Network Technology

ISBN: (纸本)9781509064151;9781509064144

For traditional routing model in wireless sensor networks(WSN), the function of intermediate nodes is storage and forwarding. Due to the limitation of WSN in energy, capability of communication, computing and the capability of storage, it is difficult for nodes to communicate. Existing researches show that using network coding in WSN can enhance throughput and the security transmission of network, and reduce the energy consumption of nodes [1]. This paper chooses a typical TEEN protocol as the research object of network coding. We attempt to employ network coding to achieve the improvement on throughput of WSN and communication performance, and decrease the energy consumption of sensor nodes. Based on these points, this paper proposes to create network coding opportunities on cluster head nodes in TEEN protocol by utilizing the advantages of opposite links, and a new network coding model basing on TEEN(NCTEEN). The results of simulations show that NCTEEN model has better performance than TEEN in terms of throughput and energy consumption. To be specific, the throughput and performance of network are improved and the energy consumption in cluster head nodes is reduced.

关键词： Wireless sensor network network coding NCTEEN model Cluster head node

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A low power quadrature up-conversion mixer for WSN application

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High technology Letters 2013年第3期19卷 228-232页

作者：吴晨健 Li Zhiqun Institute of RF-& OE-ICs Southeast University Engineering Research Center of RF-ICs & RF-Systems Ministry of EducationSoutheast University Jiangsu Provincial Key Laboratory of Sensor Network Technology

This paper presents an up-conversion mixer for 2.4GHz wireless sensor networks in 0. 181xm RF complementary metal-oxide semiconductor （CMOS） technology. It is based on a double-balanced Gilbert cell type. With two Gilbert cells it was applied quadrature modulation. Operational ampli- tiers are used in this design to improve the conversion gain under low power consumption. The mixer design is based on 0.18txm RF CMOS process. And the mixer test results indicate that under 1.8V power supply, with input frequency 2.4 - 2.4835GHz, the conversion voltage gain is 1.2 - 2dB. When the output frequency is 2.4GHz, its power gain is -4.46dB, and its input referred 1 dB com- pression point is -11.5dBm and it consumes 1.77mA current.

关键词： mixer low power Gilbert operational amplifier

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Enhancement of DV-Hop by Weighted Hop Distance

Enhancement of DV-Hop by Weighted Hop Distance

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2016 IEEE Advanced Information Management,Communicates,Electronic and Automation Control Conference(IMCEC 2016)

作者： Qihong Tao Linghua Zhang Department of Information Network NJUPT Jiangsu Provincial Engineering Research Center of Telecommunications and Network Technology

ISBN: (纸本)9781509001668

Positioning scheme is one of the fundamental issue in wireless sensor network(WSN),especially for the situation needing the accurate position of sensed *** approaches have been performed to identify the inaccurate node ***-Hop(Distance Vector-hop) is a well-known localization algorithm [1,2].In wireless sensor network with conventional algorithm for DV-Hop localization,ordinary nodes use average hop distance value estimated by the nearest beacon node to locate ***,hop distance value estimated by only one beacon node may not reflect the true situation *** the purpose of further improving the position accuracy,in view of the analysis of DV-HOP algorithm,this paper presents a strengthen method of weighted distance: ordinary nodes reference estimated average hop distance node and operate on weighted numbers of hop from multiple beacon nodes to make network average hop distance estimate more accurate and improve positioning *** from simulation show that the proposed WDV-Hop algorithm has been greatly improved by 10%-15% in terms of the accuracy of positioning compared to the conventional DV-Hop.

关键词： DV-Hop Weighted hop distance positioning accuracy Matlab simulation

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Cloud Platform Based Automated Security Testing System for Mobile Internet

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Tsinghua Science and technology 2015年第6期20卷 537-544页

作者： Dan Tao Zhaowen Lin Cheng Lu the School of Electronic and Information Engineering Beijing Jiaotong University Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Network and Information Center Institute of Network TechnologyScience and Technology on Information Transmission and Dissemination in Communication Networks LaboratoryNational Engineering Laboratory for Mobile Network SecurityBeijing University of Posts and Telecommunications

With respect to security, the use of various terminals in the mobile Internet environment is *** terminal testing methods cannot simulate actual testing environments; thus, the test results do not accurately reflect the security of terminals. To address this problem, we designed and developed a cloud platform based automated testing system for the mobile Internet. In this system, virtualization and automation technology are utilized to integrate mobile terminals into the cloud platform as a resource, to achieve a novel cloud service called Testing as a Service(Taa S). The system consists of three functional modules: web front-end module, testing environment module, and automated testing module. We adopted the permeable automated testing tool Metasploit to perform security testing. In our test experiments, we selected 100 apps with diverse vulnerability levels, ranging from secure to vulnerable, to perform a series of functional tests. The experimental results show that this system can correctly test both the number of vulnerable apps and their corresponding vulnerability levels. As such, the designed system can flexibly configure various testing environments for different testing cases or projects, and thereby perform security testing automatically.

关键词： automated security testing cloud platform virtuali

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Multi-functional photonic spin Hall effect sensor controlled by phase transition

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Chinese Physics B 2024年第7期33卷 336-342页

作者：程杰李瑞昭程骋张亚林刘胜利董鹏 School of Science Jiangsu Province Engineering Research Center of Low Dimensional Physics and New EnergyNanjing University of Posts and TelecommunicationsNanjing 210023China College of Electronic and Optical Engineering Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Electrical Engineering Research Center of Intelligent Sensor and Network Engineering Technology of Jiangsu ProvinceNanjing Vocational University of Industry TechnologyNanjing 210023China

Photonic spin Hall effect(PSHE), as a novel physical effect in light–matter interaction, provides an effective metrological method for characterizing the tiny variation in refractive index(RI). In this work, we propose a multi-functional PSHE sensor based on VO_(2), a material that can reveal the phase transition behavior. By applying thermal control, the mutual transformation into different phase states of VO_(2) can be realized, which contributes to the flexible switching between multiple RI sensing tasks. When VO_(2) is insulating, the ultrasensitive detection of glucose concentrations in human blood is achieved. When VO_(2) is in a mixed phase, the structure can be designed to distinguish between the normal cells and cancer cells through no-label and real-time monitoring. When VO_(2) is metallic, the proposed PSHE sensor can act as an RI indicator for gas analytes. Compared with other multi-functional sensing devices with the complex structures, our design consists of only one analyte and two VO_(2) layers, which is very simple and elegant. Therefore, the proposed VO_(2)-based PSHE sensor has outstanding advantages such as small size, high sensitivity, no-label, and real-time detection, providing a new approach for investigating tunable multi-functional sensors.

关键词： photonic spin Hall effect multi-functional sensors phase transition sensing performance

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Surface phonon resonance:A new mechanism for enhancing photonic spin Hall effect and refractive index sensor

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Chinese Physics B 2024年第8期33卷 254-261页

作者：程杰汪承龙李一铭张亚林刘胜利董鹏 School of Science Jiangsu Province Engineering Research Center of Low Dimensional Physics and New EnergyNanjing University of Posts and TelecommunicationsNanjing 210023China College of Electronic and Optical Engineering Nanjing University of Posts and TelecommunicationsNanjing 210023China School of Electrical Engineering Research Center of Intelligent Sensor and Network Engineering Technology of Jiangsu ProvinceNanjing Vocational University of Industry TechnologyNanjing 210023China

Metal-based surface plasmon resonance(SPR)plays an important role in enhancing the photonic spin Hall effect(SHE)and developing sensitive optical ***,the very large negative permittivities of metals limit their applications beyond the near-infrared *** this work,we theoretically present a new mechanism to enhance the photonic SHE by taking advantage of SiC-supported surface phonon resonance(SPhR)in the mid-infrared *** transverse displacement of photonic SHE is very sensitive to the wavelength of incident light and the thickness of SiC *** the optimal parameter setup,the calculated largest transverse displacement of SiC-based SPhR structure reaches up to 163.8 ym,which is much larger than the condition of ***,an NO_(2) gas sensor based on the SPhR-enhanced photonic SHE is theoretically proposed with the superior sensing *** the intensity and angle sensitivity of this sensor can be effectively manipulated by varying the damping rate of *** results may provide a promising paradigm to enhance the photonic SHE in the mid-infrared region and open up new opportunity of highly sensitive refractive index sensors.

关键词： photonic spin Hall effect refractive index sensor surface phonon resonance SiC

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