Radio irregularity model based on received signal strength for three dimensional Wireless Sensor Network

Localization in Wireless Sensor Network (WSN) is adversely effected due to Radio irregularity. This makes the localization procedure more complex. Most of the localization techniques are based on the regular radio patterns and isotropic propagation model. In order to address the problem, in this research a three dimensional radio irregularity model (3-D RIM) is proposed, that takes into account non-isotropic radio model along with radio irregularity and also considers the three dimensional aspects. For this proposed model three dimensional degree of irregularity (3-D DOI) is calculated by forming a practical test bed and finally with the simulations are carried out to validate the theoretical model and effect of increase in distance on 3-D DOI.