This paper focuses on sensor networks and specifically the routing part. Some enhancements were introduced to the Directional Source Aware routing Protocol (DSAP). This new algorithm, called MDSAP (Modified DSAP), is simulated using TinyOs and compared to the standard DSAP protocol. MDSAP is used for building one complete structure that handles both fixed and mobile users. Some of the resulting concepts can be applied to the model of the hospital.
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