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Resource allocation is an important issue in wireless communication networks. In recent decades, cognitive radio technology and cognitive radio-based networks have obtained more and more attention and have been well studied to improve spectrum utilization and to overcomethe problem of spectrum scarc ...

Chapter 1：Introduction and Overview Chapter 2：Switches，Buttons，and Knob 开关按钮Chapter 3：Clock Sources 时钟脉冲源Chapter 4：FPGA Configuration Options 配置Chapter 5：Character LCD Screen LCD显示屏特性Chapter 6：VGA Display Port VGA接口——接到显示器上Chapter 7：RS-232 Serial Ports RS-232 ...

Internet-“冷战”的产物-1957年10月和11月，前苏联先后有两颗“Sputnik”卫星上天-1958年美国总统艾森豪威尔向美国国会提出建立DARPA（Defense Advanced Research Project Agency），即国防部高级研究计划署，简称ARPA-1968年6月DARPA提出“资源共享计算机网络”（Resource Sharing Computer Networks），目的在于让DARPA ...