An Improved DV-Hop Localization Algorithm based on The Selection of Beacon Nodes

نویسندگان

  • Wenyuan Liu
  • En-shuang Wang
  • Zi-jun Chen
  • Lin Wang
چکیده

In the trilateration of wireless sensor networks, to overcome the affection of localization error caused by the selection of beacon nodes, a selective strategy of beacon nodes based on the angle information is proposed in this paper. By the comparative analysis of angle, we can determine the topology shape of the selected beacon nodes and the position relationship with unknown node, so that unknown nodes can choose three beacon nodes which are the most accurate to execute trilateration. Simulation results demonstrate that the localization error of unknown nodes is reduced greatly by the proposed method.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Improve range-free localization accuracy in wireless sensor network using DV-hop and zoning

In recent years, wireless sensor networks have drawn great attention. This type of network is composed of a large number of sensor nodes which are able to sense, process and communicate. Besides, they are used in various fields such as emergency relief in disasters, monitoring the environment, military affairs and etc. Sensor nodes collect environmental data by using their sensors and send them...

متن کامل

Optimization Research of the DV-Hop Localization Algorithm

The traditional DV-Hop sensor location algorithm estimates the distance between unknown nodes and anchor nodes by hop distance instead of straight-line distance. In the actual location condition, unknown nodes and anchor nodes mostly connect to each other through broken line. When the deviation of the estimated value and the actual value of average distance per hop is large, the error of estima...

متن کامل

An Improved DV-Hop Wireless Sensor Network Localization Algorithm

The positioning accuracy is not high for the range-free localization algorithm DV-Hop in wireless sensor networks and the Particle Swarm Optimization algorithm is proposed to optimize the positioning accuracy of the DV-Hop and the IDV-Hop localization algorithm is also proposed. Firstly, the IDV-Hop utilizes DV-Hop to estimate the measuring distances between nodes to be positioned and the beaco...

متن کامل

A multi-hop PSO based localization algorithm for wireless sensor networks

A sensor network consists of a large number of sensor nodes that are distributed in a large geographic environment to collect data. Localization is one of the key issues in wireless sensor network researches because it is important to determine the location of an event. On the other side, finding the location of a wireless sensor node by the Global Positioning System (GPS) is not appropriate du...

متن کامل

A Method of Improving WSN Localization Algorithms Based on Hopsize Deviation

This paper analyzes the DV-HOP algorithm which is a range-free localization algorithm. We improve this algorithm by revising the hop-size. In our method, uniform distribution model and secondary reference nodes are introduced to localize the unknown nodes. In addition, the hop-size of the nearest hop is used during the estimation of the distances between the beacon nodes to the unknown nodes. S...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • JCIT

دوره 5  شماره 

صفحات  -

تاریخ انتشار 2010