Energy-efficient time-bounded wireless sensing networks

Abstract

Existing works that preserve sensing coverage and connectivity in wireless sensor networks at all times lead to inefficient use of battery power. Motivated by the time-discrete nature of application data sampling, we redefine the problem to have guaranteed coverage, connectivity and delay within some known bounded time. We further explore a class of wakeup schemes based on the cyclic symmetric block design (CSBD) that offer bounded-time characteristics to better manage energy usage. We made simulation studies of our proposed scheme, and investigated the impact of such wakeup schemes on an application-layer data fusion algorithm. ©2007 IEEE.