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Energy Efficiency Analysis of Adaptive Error Correction in Wireless Sensor Networks

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Executive Summary

In this paper, the authors develop an analytical energy efficiency model using Adaptive Error Correction Code (AECC) in wireless sensor networks in fading environments. To adapt energy efficiency of sensor node to channel variations, the packet length is tuned at the data link layer. In this model, they consider the error control of Bose-Chaudhuri-Hochquengh (BCH) coding for NC-FSK receiver node using AECC scheme and compare it to one of non-AECC. The analysis is based on Mica2 sensor node where a look-up table of distance vs. adaptive correction code is installed in the node sender. Depending on channel state variation via the ACK feedback, the sender can adjust the adequate BCH code required for the next transmission.

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