Performance evaluation of DV-hop localization algorithm with mobility models for Mobile Wireless Sensor Networks

Abstract

In Mobile Wireless Sensor Networks (MWSNs), location information of nodes is the basis of many applications. Compared with that in a static network, the localization issue in a mobile network is more difficult due to uncertainty of node positions, thus much more challenges are brought to MWSNs. In this paper, we propose three localization models to evaluate performances of DV-hop localization algorithm in MWSNs. We compare the performance of three localization models, DV-hop+RWP, DV-hop+RD and DV-hop+RPGM, with that of DV-hop. Simulation results show that, DV-hop+RD has higher localization accuracy and lower energy consumption than others. However, when the number of nodes increases, more unknown nodes in DV-hop+RWP can be localized than that in DV-hop+RD. The localization success and localization accuracy of DV-hop+RPGM, which is similar to that of DV-hop, is lower than DV-hop+RWP.

A New Type of Weighted DV-Hop Algorithm Based on Correction Factor in WSNs

“…In wireless sensor networks, the localization algorithms of the sensor nodes are commonly divided into two categories range-based algorithm and range-free algorithm [4]. This classification is based on the hardware of sensor node whether need to estimate and measure the distance of neighbor nodes.…”