원문정보
초록
영어
In order to solve the problem that the DV-Hop algorithm has large error in the network topology environment of random distribution of nodes, this paper proposes a WSN localization algorithm based on hop distance correction. The algorithm uses the method of multi communication radius to correct the hop number within 1 hops, which makes it more consistent with the real situation; Then, the weighted factor is obtained by error of the average distance per hop of anchor node; Finally, the total least squares method is used to calculate the coordinates of the unknown nodes to improve the positioning accuracy of DV-Hop positioning algorithm. The simulation results show that the improved algorithm has a better accuracy and stability than the original DV-Hop algorithm.
목차
1. Introduction
2. DV-Hop Localization Algorithm
2.1. Positioning Process
2.2. Error Analysis
3. The Improved Localization Algorithm
3.1. Correct the Minimum Hop Trust
3.2. Correct the Average Distance per Hop
3.3. Use the Total Least Squares Method to Calculate the Coordinates of Unknown Nodes
3.4. Algorithm Flow
4. Result Analysis
5. Conclusion
Acknowledgements
References