Performance analysis of the actuator discovery protocol for static and mobile sensor and actuator networks

Wireless sensor-actuator networks (WSANs) refer to a group of sensors and
actuators linked by a wireless medium to perform distributed sensing and acting
tasks.
In order to provide effective sensing and acting, coordination mechanisms are
required among sensors and actuators. We have presented the architectural design
of a self organizing coordination framework in [3]. The framework organizes the
two-tiered heterogeneous network into clusters. The coordination framework is
a three-level coordination protocol and the three levels belong to the three types
of coordination required for WSANs: sensor-sensor coordination, sensor-actuator
coordination and actuator-actuator coordination. In WSANs (or WSNs), the routing
protocol is highly influenced by the operating application with delay and energy
consumption constraints. Therefore, we propose to decouple the application
dependent coordination dynamics from the essentials provided by the routing protocol.
In this paper, we present the performance analysis of our proposal called ADP
(Actuator Discovery Protocol) for static and mobile WSANs. Using ns-2 simulation
results we have shown to eliminate redundancy at each coordination level to
make routing effective and fault-tolerant.