Deploying real wireless sensor network (WSN) testbed provides a realistic testing environment. However, deploying real testbed is highly constrained by the available budget when the test needs a large-scale environment. This leads to use wireless sensor network simulation programs which act on formulating a simple representation for an actual system, but in all available simulation programs the direct operations inside physical layer is hidden and work implicitly. That means they do not present detailed information about processing operations inside node processor.

In this paper, we propose to build a kernel for a step-by-step simulation platform system to be able to simulate protocol operations and algorithms at the node processing unit level. The proposed system aims to observe the executions at the low level of the wireless sensor physical infrastructure with the ability to modify at this level. The results of this paper concern with the study of the effect of changing parameter values that are relevant to node processor on the overall network. In other words, we try to deal closer with operations inside nodes at the processing unit level.

microprocessor, sensor node, simulation, virtual platform, wireless sensor network (WSN).