Best Protocol for Wireless Communication in Batteryless IoT Sensor Deployment

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In an IoT deployment where sensors only have a power-generating element and do not have a battery, the protocol that is best suited for wireless communication is ZigBee.

ZigBee is a low-power, low-data rate wireless communication protocol that is designed specifically for low-cost and low-power devices in IoT deployments. It operates in the 2.4 GHz frequency band and has a range of up to 100 meters.

One of the key advantages of ZigBee is its low power consumption, which is essential for devices that only have a power-generating element. It uses a low duty cycle, meaning that the device is only active for short periods of time, which helps to conserve power.

Another advantage of ZigBee is its ability to support large networks of devices. It uses a mesh network topology, which means that each device can communicate with multiple other devices in the network. This makes it ideal for IoT deployments where there are many devices spread out over a large area.

Bluetooth, 3G/4G, and WiFi are not as well-suited for IoT deployments where sensors only have a power-generating element. Bluetooth and WiFi have higher power consumption and are better suited for devices that have a battery. 3G/4G is a cellular technology that requires a SIM card and is not designed for low-power IoT devices.