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7th China Conference of Wireless Sensor Networks (CWSN)

作者： Ma, Li He, Jianpei Ma, Dongchao North China Univ Technol Beijing Peoples R China

ISBN: (纸本)9783642545221;9783642545214

The position service is becoming more and more important for WSN applications. In order to resolve the problem of low positioning accuracy in WSN, a new positioning algorithm based on virtual beacon nodes is proposed. In this algorithm, the space is divided into several equal areas by anchor nodes;PIT theory is used to estimate the preliminary regional;the best virtual beacon nodes is calculated through the approach degree;finally, an unknown nodes position can be calculated by computing the centroid of the selected anchor nodes. This algorithm adopts the RF signal to locate unknown node. It can not only avoid the overlapped error in a range-based localization algorithm, but also avoid high complexity.

关键词： virtual beacon node localization algorithm computing complex location accuracy approach degree

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Time-bounded localization algorithm based on Distributed Multidimensional Scaling for Wireless Sensor Networks

Time-bounded Localization Algorithm based on Distributed Mul...

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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 localization algorithm By Dynamic Path-loss Fading Index for Intelligent Mining System 9

A Localization Algorithm By Dynamic Path-loss Fading Index f...

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9th IEEE International Conference on Computer Science and Education (ICCSE)

作者： Mao, Yanyan Cheng, Dapeng Shandong Inst Business & Technol Key Lab Intelligent Informat Proc Univ Shandong Yantai Peoples R China Shandong Univ Sci & Technol Coll Informat Sci & Engn Qingdao Peoples R China

ISBN: (纸本)9781479929511

In recent years, the localization technology for wireless sensor network becomes an important research issue for Intelligent mine system. The calculation error of traditional RSSI-based localization algorithm may exceed 50%. This paper presents DPFI, a RSSI-based localization algorithm, which achieves higher accuracy in underground personnel localization by acquiring dynamic path-loss fading index (PFI) of wireless signals. The simulation results show that DPFI has 95th percentile positioning error within 1m, while the width of the roadway width is 30 meters. When the error range is 1m and the roadway width is 10m, DPFI also brings a 31.2% performance improvement than traditional RSSI-based algorithm.

关键词： localization algorithm Path-loss Fading Index Intelligent Mining System

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Novel Range-free Immune to Radio Range Difference (IRRD) Geo-localization algorithm in Wireless Networks 12

Novel Range-free Immune to Radio Range Difference (IRRD) Geo...

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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 novel range-free immune to radio range difference (IRRD) geo-localization algorithm in wireless networks. The algorithm does not require the traditional assumption of anchor (location aware) nodes that have the same communication range as it works with anchor nodes having homogeneous and/or heterogeneous communication ranges. It is rang-free - it utilizes node connectivity to estimate the position of unknown (location unaware) nodes using two or more anchor nodes. The algorithm works in two steps: in the first step, the True Intersection Points (TIPs) forming the vertices of the smallest communication overlap polygon (SCOP) of the anchor nodes are found. In the second step, it estimates the position of the unknown node at the center of the SCOP which is formed from these TIPs. The problem is first geometrically and mathematically modeled, then new localization approach that does not assume anchor nodes have the same radio range is proposed.

关键词： anchor nodes communication overlap polygon immune to radio range difference localization algorithm range-free true 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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Point In Triangle Testing Based Trilateration localization algorithm In Wireless Sensor Networks

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KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS 2012年第10期6卷 2567-2586页

作者： Zhang, Aiqing Ye, Xinrong Hu, Haifeng Anhui Normal Univ Coll Phys & Elect Informat Wuhu 241000 Anhui Peoples R China Nanjing Univ Posts & Telecommun Coll Telecommun & Informat Engn Nanjing 210003 Jiangsu Peoples R China

localization of sensor nodes is a key technology in Wireless Sensor Networks(WSNs). Trilateration is an important position determination strategy. To further improve the localization accuracy, a novel Trilateration based on Point In Triangle testing localization (TPITL) algorithm is proposed in the paper. Unlike the traditional trilateration localization algorithm which randomly selects three neighbor anchors, the proposed TPITL algorithm selects three special neighbor anchors of the unknown node for trilateration. The three anchors construct the smallest anchor triangle which encloses the unknown node. To choose the optimized anchors, we propose Point In Triangle testing based on Distance(PITD) method, which applies the estimated distances for trilateration to reduce the PIT testing errors. Simulation results show that the PIT testing errors of PITD are much lower than Approximation PIT(APIT) method and the proposed TPITL algorithm significantly improves the localization accuracy.

关键词： wireless sensor networks localization algorithm localization accuracy trilateration point in triangle testing

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A DETECTION AND localization algorithm FOR MOVING TARGETS BEHIND WALLS BASED ON ONE TRANSMITTER-TWO RECEIVER CONFIGURATION

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MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 2017年第6期59卷 1252-1259页

作者： Yilmaz, Betul Ozdemir, Caner Mersin Univ Dept Elect & Elect Engn TR-33343 Mersin Turkey Emtech IT Technol Engn Corp Mersin Technol Dev Zone 203 TR-33343 Mersin Turkey

In this paper, we introduce a simple;but an effective algorithm to detect and image the precise location of moving targets behind obstacles based on one-transmitter and two-receiver configuration. The problem geometry together with the formulation details of the algorithm are given. The performance of the algorithm is first evaluated by synthesizing a numerical scenario that is simulated by moving ideal scatterers. Then, the success and the validity of the algorithm are being assessed by an error analysis study that calculates the error associated by the approximations. The algorithm is tested with measured data obtained by an experimental set-up for detecting a human movement behind the wall. Resultant two-dimensional consecutive images indicate that this algorithm can be effectively used for pinpointing the moving targets in TWR or similar through-the-obstacle radar applications with good fidelity. (C) 2017 Wiley Periodicals, Inc.

关键词： remote sensing through-the-wall radar moving target detection radar signal processing localization algorithm

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