An Energy-Efficient Diagonal-Based Directed Diffusion for Wireless Sensor Networks

نویسندگان

  • Yuh-Shyan Chen
  • Yau-Wen Nian
  • Jang-Ping Sheu
چکیده

In this paper, we present a new energy-efficient directed diffusion protocol by using a proposed diagonal-based hexagonal-mesh scheme for a wireless sensor network. The wireless sensor network is more reasonable to carefully build a fixed-topological wireless network environment than the conventional MANET due to the low mobility. Therefore, all sensor nodes are arranged into a fixed-topological wireless network structure, namely the hexagonal-mesh, while the MAC protocol is adopted the periodic active-and-sleep model. Wireless sensor networks use batteryoperated computing and sensing devices. The directed diffusion is mainly operated on the diagonal-paths of the hexagonal-mesh under the energy-efficient consideration. To achieve the energy-efficient purpose, our diagonal-based directed diffusion scheme has the following main contributions; (1) a periodic active-and-sleep MAC protocol on TDMA channel model is designed, (2) a periodic backbone-pathexchange scheme is periodically performed on the diagonal-mesh to consider the pernode fairness problem, (3) a directed diffusion communication application is developed based on the diagonal-based scheme. Finally, performance analysis result is finally demonstrated to illustrate the energy-efficient achievement of our proposed scheme.

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تاریخ انتشار 2002