Communication and coordination in wireless sensor and actor networks


Creative Commons License

Melodia T. , Pompili D., Gungor V. C. , Akyildiz I. F.

IEEE TRANSACTIONS ON MOBILE COMPUTING, cilt.6, ss.1116-1129, 2007 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 6 Konu: 10
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1109/tmc.2007.1009
  • Dergi Adı: IEEE TRANSACTIONS ON MOBILE COMPUTING
  • Sayfa Sayısı: ss.1116-1129

Özet

In this paper, coordination and communication problems in Wireless Sensor and Actor Networks (WSANs) are jointly addressed in a unifying framework. A sensor-actor coordination model is proposed based on an event-driven partitioning paradigm. Sensors are partitioned into different sets, and each set is constituted by a data-delivery tree associated with a different actor. The optimal solution for the partitioning strategy is determined by mathematical programming, and a distributed solution is proposed. In addition, a new model for the actor-actor coordination problem is introduced. The actor coordination is formulated as a task assignment optimization problem for a class of coordination problems in which the area to be acted upon needs to be optimally split among different actors. An auction-based distributed solution of the problem is also presented. Performance evaluation shows how global network objectives, such as compliance with real-time constraints and minimum energy consumption, can be achieved in the proposed framework with simple interactions between sensors and actors that are suitable for large-scale networks of energy-constrained devices.