Network Simulation Architecture for Smartspace

In this paper, we propose a network simulator for smartspace. Our simulator provides the following functions. (1) Realistic simulation of wireless communication; (2) Software compatibility for allowing code for real device to run on the simulator without modifying it; (3) Simulating network consisting of virtual and real devices. To realize the above (1), the simulator simulates radio propagation taking into account the influence of obstacles on a smartspace. For (2), the simulator provides APIs for simulation compatible with APIs for real devices. For (3), the simulator bridges communication between virtual and real devices using NAT. In this paper, we describe the above functions and results of a performance evaluation.