An Efficient Approach to Wireless Firmware Update Based on Erasure Correction Coding

An Efficient Approach to Wireless Firmware Update Based on Erasure Correction Coding

연구 분야: Analysis

학회: International Conference on Information Technology-New Generations

Updating the firmware of the deployed nodes in a large sensor network can be time consuming and challenging. One way to perform these updates is through an over-the-air (OTA) protocol that utilizes repeated rounds of firmware broadcasting. In this work, we propose to use erasure correction coding to improve the efficiency of the existing protocol. With the new method, receivers recover lost packets from received ones, instead of waiting for repeated transmissions. We implemented the proposed protocol and compared it with the existing method. Both theoretical analysis and experimental results demonstrate the advantages of the new approach. In our experiment, when the packet lost ratio was 27%, the new method achieved 99% success rate on firmware transmissions while the existing approach failed.