性能更好的差错控制协议将进一步提高多播的效率，满足日益复杂的网络应用。
The error control schemes with better performance will further improve multicast efficiency and meet the demands of complicated network applications.
该模型依照资源预定协议，并采用混合差错控制方式，将前向纠错编码技术加以完善，增加了重传机制。
This transport model improves forward error correction-coding technology with adding a retransmission function in it. This model bases on both resource reservation protocol and hybrid error control.
本文首先介绍了ALE协议的基本内容，分析了ALE系统的结构和设计思路，然后对8cpfsk信号的调制解调技术、差错控制技术进行了理论研究。
Firstly, ALE system's base content is introduced, then an analysis of ALE system's structure and design is put forward, and then 8cpfsk modulation theory and error control technique are discussed.
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