Efficient coverage and connectivity aware data gathering protocol for wireless sensor networks
Govind Prasad Gupta · 2016
In wireless sensor networks, a fundamental research issues in designing a protocol is how to minimize energy consumption and prolong the network lifetime, while ensuring the required spatial coverage as well as connectivity. In this paper, we present an efficient coverage and connectivity aware data gathering (ECCDG) protocol for periodic data gathering applications which ensure sufficient coverage and connectivity in the network. ECCDG reduces and balance the energy consumption by periodically selecting a set of connected active node for forwarding the sensed data from the rest of the sensor nodes. The selected set of connected active node work as a relay nodes. Each normal node transmits its observed sensory data to its closest active nodes and an active node forwards the sensed data via active relay nodes toward the sink. The performance of the proposed protocol is evaluated and compared with most recent protocols. Simulation results show that ECCDG consumes less energy consumption and has a better connectivity of the network compare to the state-of-art protocols.