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Single-hop vs. Multi-hop - Energy efficiency analysis in wireless sensor networks

Wireless sensor networks are networks of devices with restrained resources, used for environmental, military, automation and home applications. Radio transceiver is one of the biggest power consumer in sensor node, so it's usage need to be very efficient in order to maximize node's operational life. Node can route it's messages towards destination either by using small or large hops. Theoretical knowledge favours using of smaller hops, known as multi-hop, which is considered as more efficient then single-hop. This paper shows that single-hop transmission is more efficient, when power consumption of real wireless sensor node's transceivers are taken into account.