Performance Evaluation of Opportunistic Downclocking in Energy Consumption

Abstract

Downclocking is considered as one of the most classical amendments on power saving of 802.11 protocols. Opportunistic Downclocking (ODoc) is a crucial component of the downclocking technique, which determines when a node returns to a downclocked rate after finishing receiving a packet at full-clock rate. In this paper, we develop a simulator to evaluate the power consumption of ODoc. Extensive simulations show that compared with 802.11, ODoc has a potential to reduce the power consumption by 30%.