摘要： 为了解决自适应TuCM对时延敏感的问题，文章对截短信道倒置功率控制算法进行改进，提出了一种改进的功率控制算法。并利用数学拟合方法，对算法中参数 的选定进行了理论分析与实验仿真。结果表明，通过选择合适的参数 ，采用改进的功率控制算法能够降低自适应TuCM对时延的要求。

关键词: 自适应TuCM, 时延, 移动多媒体通信

Abstract: To solve the sensitivity problem of adaptive TuCM to channel transmission delay and channel estimation delay,this paper proposes an improved power adaptation by modifying the truncated channel inversion power adaptation. With the method of data fitting, it analyzes and simulates how to select the parameter in the improved power adaptation. The results show that the performance of adaptive TuCM can be ensured for different time delay by selecting appropriate parameter .

中图分类号: 

• TN919.8