Comparison of OMNET++ and NS2 for WSN Simulation

Wireless sensor networks have gained considerable attention in the past few years.We present a WSN simulator——OMNET++.Compared with some well-known simulator,OMNET++ has better performance than NS2.We demonstrated the use of the WSN simulation by implementing directed diffusion protocols,and performed performance comparisons(in the execution time and memory used)in simulating WSN in OMNET++ and NS2.The simulation study indicates the WSN in OMNET++ is much more scalable than NS2.It shows that OMNET++ is better than NS2 in large-scale WSN simulation.