论文部分内容阅读
分析了数据通信中分组差错在衰落信道下的相关性,引入了用马尔可夫模型来近似数据块的差错过程,这比用简单的门限模型更合理。同时,由于数据块的平均差错率和转移概率的关系对分组码长度、前向纠错能力、调制方式等参数都很敏感,所以在建立马尔可夫模型时借用了门限模型中的近似关系来确定参数。
The correlation of packet errors in fading channel is analyzed. The Markov model is introduced to approximate the error process of data blocks, which is more reasonable than the simple threshold model. At the same time, since the relationship between the average error rate and the transition probability of the data block is very sensitive to parameters such as the length of the block code, the forward error correction capability and the modulation method, the approximation in the threshold model is borrowed when establishing the Markov model Determine the parameters.