MATLAB Source Code Implementation of DV-Hop Algorithm for Wireless Sensor Network Localization

This article presents a comprehensive MATLAB implementation of the DV-Hop localization algorithm for wireless sensor networks. We begin by explaining the fundamental principles of the DV-Hop algorithm and its applications in wireless sensor network positioning. The core implementation includes MATLAB code structure featuring key functions such as distance vector calculation, hop count estimation, and coordinate computation using least squares method. We then dive into the practical implementation aspects, covering code development and debugging techniques specific to MATLAB environment. The implementation details include node initialization parameters, neighbor discovery mechanisms, and the three-phase algorithm execution: distance vector flooding, average hop distance calculation, and position estimation. The article further discusses optimization strategies to enhance algorithm accuracy and efficiency, including improvements in anchor node placement, error correction mechanisms, and computational efficiency enhancements through vectorization in MATLAB. We provide concrete code examples demonstrating how to modify parameters and implement these optimizations. Finally, we present practical simulation examples with complete MATLAB code snippets showing network configuration, algorithm execution, and result visualization. These examples help readers understand practical implementation considerations and performance evaluation metrics for real-world wireless sensor network applications.