Energy Efficiency Adaptation for Multihop Routing in Wireless Sensor Networks

Abstract EN

Wireless sensor networks (WSNs) are considered as a suitable solution for long-time and large-scale outdoor environmental monitoring.

However, an important feature that distinguishes the WSNs from traditional monitoring systems is their energy constraints.

In fact, these nodes have often a limited and usually nonreplenishable power source.

Therefore managing these limited resources is a key challenge.

In this paper we use an optimization scheme based on adaptive modulation and power control for a green routing protocol.

The optimization mechanism is subject to certain QoS requirements in terms of total end-to-end delay time and bit error rate.

The simulation results show that the proposed algorithm can, theoretically, reduce the consumed energy of the sensor nodes almost to half.