A very large number of simulation models have been developed to study ad hoc network architectures and protocols
under many network scenarios, number of nodes, mobility rates, etc. However, fidelity of simulation results has always
been a concern, especially when the protocols being studied are affected by the propagation and interference
characteristics of the radio channels. This paper describes our experience in designing and implementing a MANET
prototype system, Experimental Wireless Mobile Ad hoc Networks Testbed (EWMANT), in order to perform largescale,
reproducible experiments. EWMANT aims at assessing several different protocols in a real-world environment
instead of by simulation. It assists us with finding and evaluating a proper solution, showing the clear advantage of realworld
implementations compared to simulations.