Energy optimization based on the redundancy in WSNs

Abstract

OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Abstract-Almost all WSNs (Wireless Sensor Networks) are deployed with some redundancy degree and redundancy is used only for robustness objectives. If not handled in an intelligent way, redundancy results in energy wasting because of (often unnecessary) redundant transmission and reception operations. We propose to take benefit from measurement redundancy to optimize the energy consumption and improve the end-to-end delay. We propose MR-LEACH (Measurement Redundancy aware LEACH ) protocol, which is an extension to the well-known LEACH protocol to improve energy consumption in cluster-based WSNs. In addition to cluster formation according to LEACH protocol redundant nodes are grouped taking into account their redundancy and only a single node transmits data in each redundant group. This technique significantly improves the energy consumption and ensures a better end-to-end delay. Through intensive simulations, we discuss the performance of our approach and show how it outperforms the original LEACH protocol in terms of network lifetime and end-to-end delay.

Service redundancy and cluster‐based routing protocols for wireless sensor and mobile ad hoc networks: A survey

“…However, most of the data aggregation protocols do not deal properly with suddenly failing of the Cluster Head. On the other hand, the MR‐LEACH protocol 125 merges the geographical closeness of the nodes with the measurement redundancy, so redundant nodes are aggregated regarding their redundancy and only one node transmits data in each group 126 . However, MR‐LEACH does not take into account event triggering, also it is initial deployment does not comprise explicit redundancy.…”

A Survey on Descendants of LEACH Protocol

“…Gaussian distribution also supports node mobility. (Diane et.al., 2013) [64] suggested a measurement redundancy aware LEACH (MR-LEACH) which uses grouping of nodes based on the geographical location. At the time of data aggregation by CH node the information received by any node belonging to the same group processed without receiving the data from other nodes of that group.…”

Exploiting redundancy for energy-efficiency in Wireless Sensor Networks

“…MR-LEACH [6] uses a clustering technique based on the geographical proximity of nodes. This technique allows the grouping of nodes having the same measurement so that only representative nodes send their data.…”