在第一章中，我们简单地介绍拓扑动力系统的历史背景和基本概念，以及拓扑熵方面的一些已知结果。
In Chapter One, we introduce briefly the historic background and notions of topological dynamical system and some known results about topological entropy.
第一章首先分析了过程管理产生的背景，讨论了过程管理的概念、理论方法及过程管理集成系统。
Chapter one discusses the background, the concept, the theory of process management, and integrated process management software system.
全文的内容安排如下：首先在第一章针对研究背景作了详细的介绍，简单介绍了宽带无线通信系统和跨层优化的概念。
The thesis is arranged as follow:First chapter introduces the research background and the concept of Broadband Wireless Communication System and Cross-layer Optimization.
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