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Choir: Bringing Harmony to Discord in the Iot World

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Choir platform, illustrative photo

Credit: Carnegie Mellon University

Carnegie Mellon University professor Swarun Kumar says networking the vast number of devices making up the Internet of Things (IoT) requires a sweeping technological upgrade. Kumar and colleagues have developed Choir, a networking platform for potentially enabling IoT device connectivity.

The researchers tapped the imperfections of Low-Power Wide Area Network (LP-WAN) radio elements to help disentangle basestation collisions, furthering the distance of device-to-device communication. One of the imperfections they leveraged was the offset in frequency generated by devices when sending radio signals. The researchers say this and other exploitations gives Choir the ability to improve the throughput, latency, and battery life of LP-WAN nodes while also boosting their communication range.

Choir also could potentially enable future LP-WAN towers to collect sensor data from millions of low-power devices within a single city. The team says these devices could then communicate with each other, from any site and without ever being charged, by exploiting the LP-WAN platform's hardware imperfections.

From Carnegie Mellon University
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