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IEEE International Conference on Communications (ICC)

作者： Tlili, Ferdews Rachedi, Abderrezak Benslimane, Abderrahim Univ Manouba HANA Res Grp ENSI Tunis Tunisia Univ Paris Est UPEM Comp Sci Lab LIGM UMR8049 Marne La Vallee France French Univ Egypt Informat Res Ctr CRI Cairo Egypt

ISBN: (纸本)9781479920037

Many applications of Wireless Sensor Networks (WSN) require to achieve the positions of the sensor nodes within a given time bound. In this paper we study the relative and physical localizability of WSN in a given time bound. We propose a new distributed and time bounded localization algorithm based on Multidimensional Scaling (MDS) method in WSN called D-MDS localization time algorithm. We compare the proposed algorithm to the existing algorithm based on the well-known Trilateration method. The simulation results show that the proposed algorithm outperforms the existing approach based on Trilateration method in terms of the number of localized nodes in the network and the number of anchors required to physically localize the sensors. The D-MDS localization time algorithm localizes a large number of nodes for a low node degree in a time bound. Moreover it is able to physically localize the network with a low number of anchors compared with the algorithm based on Trilateration method.

关键词： Wireless Sensor Networks localization algorithm Localizability Multidimensional Scaling (MDS) Local Coordinate System

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DV-hop-MSO Based localization algorithm in Wireless Sensor Networks

DV-hop-MSO Based Localization Algorithm in Wireless Sensor N...

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7th China Conference of Wireless Sensor Networks (CWSN)

作者： Lv, Xiaoyu Sun, Xuemei Zhou, Xuefeng Xu, Guowei Tianjin Polytech Univ Sch Comp Sci & Software Engn Tianjin 300387 Peoples R China Tianjin Polytech Univ Sch Elect & Informat Engn Tianjin 300387 Peoples R China

ISBN: (纸本)9783642545221;9783642545214

Wireless Sensor Networks (WSNs) play an important role in making the dream of ubiquitous computing a reality. It has the potential to influence and improve everyone's life with a variety of applications in the future. However, there are a number of issues in deployment and exploitation of these networks that must be dealt with for sensor network applications to realize such potential. localization is one of the supporting technologies in wireless sensor networks, which can not provide the physical locations of events, but also help to improve the routing efficiency, optimize the network coverage and control the topology etc. Therefore, localization is one of the important issues of the WSN. This paper proposes an improved DV-hop localization algorithm for WSNs. The new localization algorithm, which not only maintains the advantages of DV-hop localization algorithm, but also overcomes the shortcomings of Mass-Spring Model (MSO) algorithm that it is easy to fall in to local optimum, make use of the advantages of error inhibition of MSO to solve the problem of calculation error in traditional DV-hop which use weighted least square estimates to calculate the coordinate of unknown nodes. Experimental results show that our proposed method is effective and robust, especially the node localization more accurately than DV-hop localization algorithm at the same network environment.

关键词： Wireless sensor network Mass spring model localization algorithm DV-hop

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A node localization algorithm used for POCT microfluidic detection

A node localization algorithm used for POCT microfluidic det...

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International Conference on Mechatronics and Semiconductor Materials (ICMSCM 2013)

作者： Lin, Chao Beihang Univ Dept Elect Engn Beijing 100191 Peoples R China

ISBN: (纸本)9783037859391

This paper intends to study in the POCT (point-of-care-testing) combined with microfluidic technology as the breakthrough point. A localization algorithm is used for the ultimate miniaturization, portable, low cost, plug-and-play type PERS detecting instrument, which consist of telemedicine perception layer, and then collected data and location information more effectively transmitted to the server to deal with and feedback.

关键词： Telennedicine localization algorithm Microfluidic POCT

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An improved DV-Hop localization algorithm Based on Approximate Path Distance Optimization in 3D Wireless Sensor Networks 9

An improved DV-Hop Localization Algorithm Based on Approxima...

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9th International Conference on Computer and Communication Systems (ICCCS)

作者： Han, YuLao Pan Zhihua Univ Dept Math & Comp Panzhihua Peoples R China

ISBN: (纸本)9798350350227;9798350350210

Aiming at the localization deviation of DV-Hop algorithm in 3D wireless sensor networks, this paper proposes an improved DV-HOP localization algorithm based on approximate path distance optimization. The algorithm selects the message with the least number of nodes and the greatest number of anchors from all the messages which broadcast from the source anchor node to the target anchor node. The approximate path distance of the message is used to replace the linear distance from the source anchor node to the target anchor node when calculating the average jump distance of the target anchor node. On this basis, the weighted average of the average jump distance of the three anchor nodes near the unknown node is used to calculate the average jump distance of the unknown node. The simulation results show that compared with the other three localization algorithms, the proposed localization algorithm can effectively reduce the localization deviation of unknown node under different node proportions.

关键词： localization algorithm approximate path distance anchor node jump distance localization deviation

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Range-free Selective Anchor Node Center of the Smallest Communication Overlap Polygon localization algorithm in Wireless Networks 12

Range-free Selective Anchor Node Center of the Smallest Comm...

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12th IEEE International Conference on Green Innovation for Africon Renaissance (AFRICON)

作者： Demilew, Samuel Asferaw Ejigu, Dejene Da-Costa, Georges Pierson, Jean-Marc Univ Addis Ababa IT Doctoral Program Addis Ababa Ethiopia Univ Toulouse 3 Lab IRIT UMR 5505 F-31062 Toulouse France

ISBN: (纸本)9781479974986

This paper presents a range-free selective anchor node center of the smallest communication overlap polygon localization algorithm in wireless networks. The algorithm is range-free which does not require ranging devices. To estimate the location of unknown (location unaware) nodes it uses node connectivity based on selected anchor (location aware) nodes. The algorithm first selects appropriate anchor nodes. Then, the True Intersection Points (TIPs) constituting the vertices of the smallest communication overlap polygon (SCOP) of these selected anchor nodes' communication ranges are found. Finally, the location of the unknown node is estimated at the center of the SCOP which is formed from these TIPs. The algorithm performance is evaluated using MatLab simulation and compares favorably to state-of-the-art algorithms: Centroid, improved version of CPE, Mid-perpendicular and CSCOP localization algorithms. The results show the proposed algorithm outperforms other state-of-the-art algorithms in location accuracy and it has reasonable computational complexity.

关键词： anchor nodes communication overlap polygon range-free localization algorithm selective true intersection points false intersection points

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Error emendation of sensors array autonomous localization algorithm

Error emendation of sensors array autonomous localization al...

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International Conference on Materials, Mechatronics and Automation (ICMMA 2011)

作者： Wang Xiao Wang Juxiang Wu Xin North China Inst Aerosp Engn Langfang 065000 Hebei Peoples R China HEBEI Univ Technol City Coll Langfang 065000 Hebei Peoples R China Ningbo Branch China Acad Ordnance Sci Yantai 264003 Peoples R China

ISBN: (纸本)9783037850176

This paper introduces the principle of sensors array autonomous localization system. Base on the analysis of the localization precision decline reason in the marine environment, one kind of sensors array autonomous localization error correction algorithm is described in this paper. This approach can decrease the error interference introduced by the external environment, enhance the localization precision. And through the simulation, data analysis and compare, the results show that the approach is promising tools to enhance the precision of sensors array autonomous localization effectively.

关键词： localization accuracy Error emendation correction Sensors array localization algorithm

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Triangle and centroid localization algorithm based on distance compensation

Triangle and centroid localization algorithm based on distan...

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IET International Conference on Information Science and Control Engineering 2012, ICISCE 2012

作者： Shang, Ye Liu, Zhigang Wang, Jinkuan Xiao, Xianda School of Information Science and Engineering Northeastern University Shenyang China

ISBN: (纸本)9781849196413

Solutions for localization have become more critical with recent advancements in short-range wireless communication protocols and location-aware technologies. The assumed condition of three circles intersecting to form an overlapping area in triangle and centroid localization algorithm cannot be met in practical situations. In this paper, we propose the triangle and centroid localization algorithm based on distance compensation because of the impracticability of triangle and centroid localization algorithm. Finally, experimental results show that the proposed algorithm is workable for localization.

关键词： Anchor nodes Centroid localization algorithm Received signal strength indicator (rssi)

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localization algorithm of Underground Mobile Personnel Based on ZigBee

Localization Algorithm of Underground Mobile Personnel Based...

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2011年亚太青年通信学术会议

作者： Chengyu HUANG,Xiaoyan ZHAO School of Information and Communication,Guilin University of Electronic Technology,Guilin,China

Knowing the position of mobile user plays an important role for location services in underground coal *** is a kind of newly arisen technique having a number of characteristics such as low power, low cost and low complexity,which is suitable for being used to implement position in underground coal *** this paper,a new position algorithm of underground personnel based on ZigBee technology is *** algorithm first uses fuzzy prediction to estimate and modify signals,and improve the quality of the *** then,the Multilateration is utilized to position *** algorithm was tested and the result was *** results show that the proposed algorithm provides more accurate predicted position.

关键词： coal mine ZigBee network localization algorithm received signal strength indicator

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Intrusion localization algorithm based on linear spectrum in distributed Sagnac optical fiber sensing system

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OPTICAL ENGINEERING 2015年第8期54卷 085105-085105页

作者： Pi, Shaohua Wang, Bingjie Jia, Bo Sun, Qi Xiao, Qian Zhao, Dong Fudan Univ Dept Mat Sci Shanghai 200433 Peoples R China

Fiber optic sensors are used for a large variety of sensing applications, including security applications and the monitoring of bridges, dams, and pipelines. We propose an algorithm that can achieve highly accurate and robust detection of multiple intrusions over distributed localizations (distributed sensing) in the Sagnac fiber sensing system. This distributed-sensing algorithm involves the application of the fast Fourier transform to the linear spectrum of the phase difference signals resulting from the intrusion. The distances or localizations for intrusions occurring at different places correspond to different "response" peaks, which can be conveniently evaluated in the final localization chart. The fundamental theory underlying the algorithm is presented, and its efficacy is demonstrated via a series of experiments with a 130-km long sensing fiber. The localization-sensing performance of our algorithm, with a minimum standard deviation of 28 m for 23 intrusions at same position, shows high robustness. We believe that our approach can significantly contribute to the development of fiberoptic sensing. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)

关键词： fiber-optic sensors distributed Sagnac interferometers localization algorithm linear spectrum double fast Fourier transform

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A Hybrid localization algorithm for an Adaptive Strategy-Based Distance Vector-Hop and Improved Sparrow Search for Wireless Sensor Networks

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SENSORS 2023年第20期23卷 8426页

作者： Sun, Zhiwei Wu, Hua Liu, Yang Zhou, Suyu Guan, Xiangmin Shandong Jiaotong Univ Sch Informat Sci & Elect Engn Jinan 250357 Peoples R China Civil Aviat Management Inst China Sch Gen Aviat Beijing 100102 Peoples R China

Wireless sensor networks (WSNs) are applied in many fields, among which node localization is one of the most important parts. The Distance Vector-Hop (DV-Hop) algorithm is the most widely used range-free localization algorithm, but its localization accuracy is not high enough. In this paper, to solve this problem, a hybrid localization algorithm for an adaptive strategy-based distance vector-hop and improved sparrow search is proposed (HADSS). First, an adaptive hop count strategy is designed to refine the hop count between all sensor nodes, using a hop count correction factor for secondary correction. Compared with the simple method of using multiple communication radii, this mechanism can refine the hop counts between nodes and reduce the error, as well as the communication overhead. Second, the average hop distance of the anchor nodes is calculated using the mean square error criterion. Then, the average hop distance obtained from the unknown nodes is corrected according to a combination of the anchor node trust degree and the weighting method. Compared with the single weighting method, both the global information about the network and the local information about each anchor node are taken into account, which reduces the average hop distance errors. Simulation experiments are conducted to verify the localization performance of the proposed HADSS algorithm by considering the normalized localization error. The simulation results show that the accuracy of the proposed HADSS algorithm is much higher than that of five existing methods.

关键词： wireless sensor network localization algorithm DV-Hop improve sparrow search

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