Abstract:Low-Duty-Cycle wireless sensor networks (LDC-WSN) can effectively increase the lifecycle of wireless sensor networks. However, in traditional LDC-WSN, not only is end-to-end delay very large, but the quality of link is also not considered. In order to solve these two problems, this paper proposes link-quality and energy-aware based scheduling scheme algorithm (LES). Simulation shows that, compared with traditional networks, LES can achieve significant performance improvement in terms of energy-saving and therefore increase life cycle.