Channel Aware Cooperative FEC/ARQ Mechanism Based on Kalman Filter Prediction for Wireless Sensor Networks
DOI:
https://doi.org/10.3991/ijoe.v10i1.3164Keywords:
Wireless sensor networks, Cooperative communication, Relay selection, Kalman filter, Forward Error Correction (FEC), Automatic Repeat reQuest (ARQ).Abstract
The QoS-Guarantee of data delivery over wireless link is a big challenge due to the unreliable and dynamic characteristics of wireless sensor networks. In this paper, a cooperative forward error correction (FEC)/automatic repeat request (ARQ) mechanism was proposed, in the hope that the data packets could be received on receiver node with high quality. The mechanism, based on Kalman filter, predicts the bit error rate and adjusts the channel state parameters according to the bit error rate threshold value. Both the mathematical analyses and NS simulation demonstrate that the proposed mechanism achieves better performance, in terms of throughput, delay, reliability and energy efficiency comparing with traditional FEC/ARQ, cooperative FEC and cooperative ARQ.
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