Dynamic Low-Power Listening with Data-Rate Proportional Wakeup Period Management

Low-power embedded platforms are widely used in various data collection scenarios to capture physical world phenomena in micro-scale. Given that many applications require long operation times, it is important for nodes to employ various schemes to maximize their lifetime. Within the sensor network research community, schemes such as low-power listening (LPL) and low-power probing (LPP) have been actively studied and enhanced [1], [2], [3]. Nevertheless, without MAClayer synchronization, for asynchronous sleep-based systems, the wakeup cycles of the low-power nodes were, in most cases, considered to be identical for the entire network. This work takes a different approach and targets to provide a traffic-rate proportional sleep cycle: resulting in an asynchronous sleep cycle in an asynchronous sleep low-power protocol.