Data dissemination and power management in wireless sensor networks

Abstract

Data dissemination in wireless sensor networks has been considered as an important mechanism and very interested issue. In such environment, data dissemination is generally performed from sensor nodes to the sink. Thus, each sensor node can be implicitly provided the direction to forward sensing data towards the sink. The inherent characteristics of sensor nodes such as limited battery and limited computing capability, make the forwarding mechanism is not more suitable for this kind of network. In this paper, we present new data dissemination protocol based energy-efficient called Data Dissemination and Power Management Protocol (DDPM). In this protocol, we propose new energy management scheme using a dynamic power threshold. Firstly, in the initialization phase, the sensor nodes organized under clusters and cluster head should be selected for each cluster. Secondly, in the data dissemination phase, the cluster head collects and transmits the sensing data based on the data dissemination process. The simulation result shows that the proposal protocol permits to reduce the energy consumption and prolong the network life. © 2011 Springer-Verlag.