Abstract : In the field of Mobile Ad Hoc Networking, most current results have been achieved using simulators. Network
simulation tools are frequently used to analyze performance of MANET protocols and applications. The need for reproducible
results and easy to observe environments limits the use of real world measurements for those kind of networks. They commonly
offer only simple radio propagation models that neglect obstacles of a propagation environment .The radio wave propagation
model has a strong impact on the results of the simulation run. It is stated here that the two more realistic radio propagation models
has a strong impact on the results of the simulation run. The model is based on data of the simulation area in urban area.
Consequently, we obtain different performance evaluation results. This paper gives insights on the effect of these propagation
models for MANETs in indoor and outdoor environments and presents the parameters and the results of simulating
Xiang Zeng , Rajive Bagrodia, Mario Gerla , “Library for Parallel Simulation of Large-scale Wireless Networks", http://pcl.cs.ucla.edu/projects/glomosim.
Jae Chung,Mark Claypool ,”ns by example” http://nile.wpi.edu/NS/.
 J. Yoon, M. Liu, and B. Noble, “Sound Mobility Models,” in Proc. ACM/IEEE Int’l Conf. Mobile Computing and Networking (MOBICOM ’03), pp. 205-216, September2003.
F. Bai, N. Sadagopan, and A. Helmy, “IMPORTANT: A framework to systematically analyze the Impact of Mobility on Performance of RouTing protocols for Adhoc NeTworks,” in IEEE INFOCOM’03, San Francisco, March/April, 2003.
F. Bai and A. Helmy, “A Survey of Mobility Modeling and Analysis in Wireless Adhoc Networks”,chapter 1,University of southern California,USA.
W. Navidi and T. Camp, “Stationary Distributions for the Random Waypoint Mobility Model,” IEEE Transactions on Mobile Computing ITMMC-3 (2004), pp. 99-108.
Ingo Gruber, Oliver Knauf and Hui Li,” Performance of Ad Hoc Routing Protocols in Urban Environments”, In Proceedings of European Wireless 2004 (EW2004, Barcelona, Spain,February24-27,2004.