摘要
基于无线传感器网络能量有限的特点,提出了一种判决与校验相结合的算法,利用BCH码和CRC码实现多位纠错功能,在纠正错误时,一位错误和多位错误分开纠错。对纠错算法的能耗进行了分析,并与ARQ方案和BCH纠错方案的能耗进行了对比。仿真结果表明:该多位纠错方法有效地改善了误码率和帧错误率,当误码率大于1.3E-3时,这种算法有较高的能量利用率。
In order to solve the problem of energy limitation of wireless sensor network, an algorithm combining judgment and data check was proposed, which realized the ability of multiple bits error correction using BCH code and cyclic redundancy check code, and the single bit error and multiple bits error were corrected separately. The energy consumption of the method was analyzed, compared with those of ARQ and BCH error correction. The simulation results show that the proposed method has high energy efficiency when bit error rate is greater than 1.3E- 3, and the method can improve the bit error rate and packet error rate effectively.
出处
《计算机应用》
CSCD
北大核心
2009年第B12期55-57,共3页
journal of Computer Applications
关键词
多位纠错
能耗
帧错误率
能量利用率
multiple bits error correction
energy consumption
frame error probability
energy efficiency
