Effect of Using Different Propagations on Performance of OLSR and DSDV Routing Protocols

The performance of Ad hoc routing protocol always has been measured by using free-space model and Two-ray ground model. But these two models are very simple and can't represent real world propagation, because they ignored the effect of obstacles in their environment representation. So the most real models is shadowing propagation model which has taken all these factors in account. This paper explains the effect of using two types of propagation models which are: Two Ray Ground model and shadowing model for two important protocols such as Destination Sequenced Distance Vector (DSDV) and Optimized Link Status Routing (OLSR), which are considered a proactive and Table Driven routing protocols and then different performance metrics has been measured. The simulations results have shown that the type of the propagation model has great impact on routing protocol, and it has effected severely on its performance.