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Suggested Topics within your search.
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261
Power Conservation and Security Enhancement in Wireless Sensor Networks: A Priority Based Approach
Published 2014-05-01“…This paper proposes an approach called “priority based approach (PBA)” which empowers the node to choose the most important packet based on the priority and the current energy status of the forwarding node. …”
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262
Modified Binary Partition Assisted Broadcast Protocol for Emergency Message Dissemination in VANET
Published 2015-09-01“…The protocol divided the communication range into small sectors, and sought the farthest possible nodes in the farthest sector from the sender node to be the forwarding node to increase the dissemination speed by reducing the forwarding hops. …”
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263
Coverage optimization algorithm based on VF-CS in mobile sensor network
Published 2018-03-01“…A random placement of large-scale sensor network in the outdoor environment often causes low coverage.An area coverage optimization algorithm of mobile sensor network (MSN) based on virtual force perturbation and Cuckoo search (VF-CS) was proposed.Firstly,the virtual force of the sensor nodes within the Thiessen polygon was analyzed based on the partitioning of Voronoi diagram of the monitoring area.Secondly,the force of polygon vertices and neighbor nodes was taken as the perturbation factor for updating the node’s location of the Cuckoo search (CS).Finally,the VF-CS guided the node to move so as to achieve the optimal coverage.The simulation results demonstrate that the proposed algorithm has higher coverage and shorter average moving distance of nodes than the Voronoi diagram based algorithms in literatures.…”
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264
Energy efficient cooperative spectrum sensing algorithm in cognitive wireless sensor networks
Published 2015-03-01“…A novel energy-efficient scheme of cooperative spectrum sensing in cognitive wireless sensor networks is proposed.Firstly,in order to reduce energy consumption of distributed sensor nodes,and assumed that instantaneous SNR and average SNR for each node is available.The mathematical model of spectrum sensing nodes energy consumption and optimum detection threshold are analyzed. …”
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265
Exploring the Performance of Path Reliability in MANETs Through an Energy-Efficient RRS Algorithm
Published 2025-01-01“…A MANET consists of several nodes that dynamically move to change the network topology. …”
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266
PDA: A Novel Privacy-Preserving Robust Data Aggregation Scheme in People-Centric Sensing System
Published 2013-11-01“…However, it introduces some challenges, including security challenge and robust challenge. As sensor nodes need to send their individual sensed data to an aggregator node and these data are related to users' real life, privacy-preserving data aggregation is a challenge issue. …”
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267
Establishment and Analysis of the Supernetwork Model for Nanjing Metro Transportation System
Published 2018-01-01“…In this paper, a supernetwork model of Nanjing metro network is established by using the supernetwork method. Three parameters, node-hyperedge degree, hyperedge-node degree, and hyperedge degree, are proposed to describe the model. …”
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268
Measurement Along the Path of Unmanned Aerial Vehicles for Best Horizontal Dilution of Precision and Geometric Dilution of Precision
Published 2025-06-01“…Additionally, we quantify how increasing the number of access nodes improves the average HDOP and GDOP over the specified area.…”
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269
A Hybrid Reliable Heuristic Mapping Method Based on Survivable Virtual Networks for Network Virtualization
Published 2015-01-01“…The links in primary-cut set should select a substrate path that does not pass through the substrate node corresponding to the virtual node that has been removed first. …”
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270
Automated guided vehicle (AGV) path optimization method based on improved rapidly-exploring random trees
Published 2025-06-01“…Secondly, the KD-Tree nearest neighbor search method is employed to accelerate node searching and reduce the time cost of path planning. …”
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271
Collaborative Cacbe Management Strategy Based on Ant-Colony Replacement Algoritbm in Named Data Networking
Published 2014-09-01“…Once the to-be replaced content has been figured out, ACNCM was exploited to choose one available collaborative neighbor node to store the content, according to the regular exchange of caching information among neighboring nodes. …”
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272
Low latency handover scheme for 5G dual-connectivity scenario
Published 2019-04-01“…A novel handover scheme was proposed for the secondary node (SN) unchanged 5G dual-connectivity scenarios.In the proposed novel scheme,the SN connection was maintained for data packet transmission during the handover,however,both the main node (MN) and the SN were completely disconnected in the legacy scheme.The transmission delay during handover was decreased greatly by the proposed scheme.Firstly,the legacy handover scheme was analyzed and its deficiency was figured out.Then,the novel mechanism’s signaling interaction was elaborated and the time sequence models for the novel scheme and the legacy scheme were further established.Finally,based on the time sequence model,the performance evaluation processes were carried out in terms of mathematical modeling and experimental simulations.The analysis results demonstrate that the proposed novel scheme reduces the single packet transmission delay,the average transmission delay and the total transmission delay,and has good performance advantages.…”
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273
Positioning optimization method based on indoor map deduction and signal through-wall correction
Published 2022-10-01“…An optimization method of through-wall corrected positioning based on mixed measurements of through-wall ranging and LoS ranging was proposed to solve the problem caused by NLoS measurement error.An approximate model of through-wall measurements was first proposed aiming at the typical through-wall NLoS scenario, which made indoor positioning method independent to the factors of the signal incident angle, the structure, the dielectric constant and the thickness of the wall.Then with the help of map deduction, whether there was a wall between the to-be-located node and the anchor node could be judged, and the positioning optimization method was proposed so that localization can be solved with only the redundant measurements.Simulations and UWB experiments show that in a variable map scenario considering through-wall propagation the proposed method outperforms SR-WLS (squared-range and weighted least square) in the aspect of average accuracy of indoor positioning.…”
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274
Positioning optimization method based on indoor map deduction and signal through-wall correction
Published 2022-10-01“…An optimization method of through-wall corrected positioning based on mixed measurements of through-wall ranging and LoS ranging was proposed to solve the problem caused by NLoS measurement error.An approximate model of through-wall measurements was first proposed aiming at the typical through-wall NLoS scenario, which made indoor positioning method independent to the factors of the signal incident angle, the structure, the dielectric constant and the thickness of the wall.Then with the help of map deduction, whether there was a wall between the to-be-located node and the anchor node could be judged, and the positioning optimization method was proposed so that localization can be solved with only the redundant measurements.Simulations and UWB experiments show that in a variable map scenario considering through-wall propagation the proposed method outperforms SR-WLS (squared-range and weighted least square) in the aspect of average accuracy of indoor positioning.…”
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275
Research on low-Impact development layouts in old urban residential communities based on multi-objective optimization.
Published 2025-01-01“…However, the rate of runoff reduction increases marginally when the construction cost exceeds 1.4 million yuan. Additionally, the average node overload time decreases as the construction cost and runoff reduction rate increase. …”
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276
Microbial Network Complexity Helps to Reduce the Deep Migration of Chemical Fertilizer Nitrogen Under the Combined Application of Varying Irrigation Amounts and Multiple Nitrogen S...
Published 2024-12-01“…The network topology indices, including node count, average clustering coefficient, average degree, modularity, and edge count, were found to be relatively more important for the deep migration of chemical fertilizer N. …”
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277
Stabilized Multi-Hop Route Construction Using a Modified Link Metric for Wi-SUN FAN Systems
Published 2025-01-01“…ETX is used to convert number of communications into a link metric, which measures the quality of communication between nodes. This metric measures the relative distance to the root node via adjacent nodes to determine the parent node. …”
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278
Performance analysis of multi-UAV-assisted backscatter communication system
Published 2025-07-01“…In practical applications, factors such as node distribution and UAV deployment should be considered comprehensively. …”
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279
An Energy-Efficient Multipath Routing Algorithm Based on Ant Colony Optimization for Wireless Sensor Networks
Published 2015-06-01“…The pheromone will be thoroughly updated when a node receives a backward ant. EAMR makes an innovation in multipath mechanism which becomes more reasonable to multipath between source node and destination node. …”
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280
Fluoroscopic balloon dilation for early jejunojejunostomy obstruction after gastrectomy with roux-en-Y reconstruction: a case series of three patients
Published 2020-05-01“…The average procedure time was 46 min (range 29–68), and the average duration to oral intake from FBD was 4 days (range 2–5). …”
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