无线传感器网络数据传输纠错方法的应用

Error Correction for Data Transmission and Application to Wireless Sensor Networks

在无线传感器网络实际应用中,传输信道容易受到干扰,不可避免形成突发错码.为了确保数据传输的可靠性,提出一种简便实用的数据传输纠错方法,结合卷积码技术和交织技术对数据进行纠错,并在传感器节点上实现卷积交织及卷积编码纠错功能.该方法不仅译码简单,设计复杂度低,而且可抗较高的信道误码,是一种良好的、便于软件实现的前向纠错编码技术.实验结果验证了该方法的实用性与合理性.

In practical wireless sensor networks, transmission channels are susceptible to interference, resulting in errors in the code. To ensure reliability of data transmission, we propose a simple and practical data transmission error correction scheme by integrating convolutional coding with interleaving technique. A flow chart is presented, and the approach is implemented on sensor nodes. The proposed method has low computation complexity, can resist high channel bit error, and is convenient to implement by software. Experimental results validate its effectiveness and practicality.