Abstract: Aimed at "hot zone" problem of wireless sensor and actor networks, a tasks assignment algorithm based on entropy was proposed to make the whole network energy consumption more balanced. Considering network situation,the entropy-based cost of taking action model was established by using auction method. The task assignment problem among actors was formulated as a balanced or non-balanced task assignment optimization problem, different task units were executed in parallel to enhance higher real-time response. The result of simulation shows that the algorithm can provide more balance in energy consumption and higher real-time performance.

Key words: Wireless sensor and actor network, Task assignment, Entropy, Real-time requirement, Energy balancing