A Scalable Uniform Localization Performance Evaluated Model and Performance Analysis of Range-free Algorithms in WSN ?

In this paper, we investigated and solved two issues in the research of Wireless Sensor Network (WSN). Firstly, we proposed a Scalable Uniform Localization Performance evaluated model (SULP evaluated model). There are two parts of this model, modules and data structures, both of them can be customized and extended by users as they need. By using this model researchers can save more time because they pay more attention to the algorithm itself but not to the evaluate environment and parameters. Secondly, we investigated the impacts of communications radius and anchor node ratio on localization algorithms. Four classical algorithms have been evaluated under the scalable model. Experimental results show that the performance including localization error rate, localization cover rate and energy consumption have difierent trends when communication radius and anchor node ratio changing in a reasonable range. Finally we concluded the regulars of the trends to provide instructions to industrial applications and other researchers.