Energy efficiency of machine-to-machine protocols

The paper provides a comparison of energy consumption for a few commonly used M2M protocols, used on energy constrained devices in M2M communication systems. It was implemented on Arduino hardware platform. Energy consumption for each protocol is measured on boards with both Ethernet and WiFi communication modules. Servers with which Arduino is communicating are all implemented on a Raspberry Pi, which also serves as an M2M gateway. Traffic is captured for each protocol on both wired and wireless interface and compared to energy consumption.