Energy Consumption Distribution-Aware Node Placement in Wireless Sensor Networks (WSNs)

In some civilian applications of wireless sensor networks, the sensing nodes is so far away from the base station that relaying nodes must be employed to forward data. Some relaying nodes use up their power early because they have heavier traffic load, which affects the network lifetime. This paper proposes the two-phase placement strategy of relaying nodes, which implements an even energy consumption distribution among different nodes. Sensing nodes and relaying nodes consume the same power in every round of data transmission by adjusting location and data volume. Based on the strategy, this paper finds numerical relationship between the number of relaying nodes and network lifetime, offers a reference for the trade-off between increasing network lifetime and decreasing the number of relaying nodes