A new density control algorithm for WSNs wireless sensor networks

摘要

In dense sensor networks, density control is an important technique for prolonging network lifetime while providing sufficient sensing coverage. We present a new density control algorithm called NODC (non-overlapping density control). The goal of NODC is maximizing coverage while avoiding the overlap of sensing areas of active sensors. We derive the optimality conditions and develop a distributed algorithm. Experimental results show that NODC can use up to 20% fewer active nodes than OGDC with less than 5% reduction in coverage.