摘要
环形网通信中为了解决通信中的误码率问题,同时根据不同差错控制法的特点,我们引入了反馈重发的差错控制方法。利用32位CRC循环校验码,可以检测到大部分的随机错误和单个突发错误。同时使用数据循环重发,来纠正数据传输中的误码。我们通过建立具体模型来分析环形网通信中差错控制的具体实现以及其在通信中所起的作用。
To solve the problem of code error rate during the communication offing network ,according to the characteristic of kinds of error control we use Automatic Repeat Request(ARQ)which is one of error control methods to decrease error code. Most of random errors and single burst errors can be checked out by using of 32 bits Cyclic Redundancy Code(CRC-32). At the same time, the error code in communication is corrected by using of repeat transmittal of data in every cycle. By way of building mode, we can analyze the implement of error control, and the effects during the communication of ring network.
出处
《仪器仪表标准化与计量》
2006年第4期22-24,共3页
Instrument Standardization & Metrology
关键词
误码率
随机错误
突发错误
差错控制
Error Code Rate Random Error Burst Error Error Control