Scalable parallel simulations of wireless networks with WiPPET: Modeling of radio propagation, mobility and protocols

We review the design, selected applications and performance of WiPPET (Wireless Propagation and Protocol Evaluation Testbed), a general parallel simulation testbed for various types of wireless networks. WiPPET has been written in TeD/C++, an object‐oriented modeling framework that isolates network modeling from the underlying parallel discrete event simulator. We describe the techniques for modeling radio propagation (long and short‐scale fading and interference) and protocols that promote scalability of parallel simulations at session and packet time‐scales. We outline two selected applications of WiPPET: integrated radio resource management in a mobile wireless network; and packet losses due to mobility and short‐scale fading over a radio link. We illustrate the efficiency of the simulator under two partitioning schemes with parallel performance data obtained using the Georgia Time Warp optimistic simulator.

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