Optimized Beaconless Geo-Routing for Smart Utility Networks

In this letter, we propose to employ beaconless geo-routing in conjunction with the recently ratified IEEE 802.15.4g physical layer standard for smart utility networks. We devise a simple yet an optimized mechanism for selecting the best candidate relaying node. We then compare the end-to-end energy performance of the optimized protocol with the routing protocol for low power and lossy networks (RPL); an IETF standardized specification. We demonstrate that the optimized protocol outperforms RPL particularly when the smart meters are situated more than one hop away from the sink.