Overlap-based connectivity restoration approach for wireless sensor and actor network
Neng Wang · Journal of Computer Applications · 2011
In Wireless Sensor and Actor Network(WSAN),the failure of an actor would bring about the loss of connectivity and more resource consumption of the sensors which belong to the failed actor.Thus,this paper proposed a new approach to restore the connectivity of WSAN.With 2-hop neighbor information,the approach determined whether the actor was local cut-vertex at first,and then calculated the migration distance of actor according to the overlap of management area among actors.Each actor created the recovery schedule list beforehand in distributed manner and broadcast it.Some neighbors of failed actor which belong to the recovery schedule list would perform restoration process in sequence with local cascading movements when failure occurred.The NS2 simulation results confirm the effectiveness of the approach.