Cross layer design for QoS aware energy efficient data reporting in WSN

International audienceThere is an increase in use of wireless sensor networks due to its utilization in emerging applications for building automation, disaster management and video surveillance. To make sure efficient, reliable and low power routing various metrics are proposed. It is generally assumed that network consists of homogeneously distributed nodes having no physical obstruction. However, in application of building automation there exists walls and physical obstacles resulting in increased signal distortion and path loss. Thus, existing energy efficient data routing solutions cannot be directly applied to these applications because they may not obey the realtime deadline of the application. In this article, we propose an adaptive routing metric which helps in minimizing the energy consumption as well as meeting the realtime deadlines of the application. The proposed metric is compared with energy efficient and QoS aware data routing metrics using ns-2 simulation environment