认知无线电是一种智能的无线通信系统，它能够感知周围环境的变化，通过理解-学习，从而改变自己的发射参数（功率大小，调制方式，信道选择），以适应周围环境的变化。 待续）

认知网络入门，文章没有局限描写认知无线网络的某一方面，而是将近年来的有关认知网络的论文研究方向做了总结，包括路由协议，研究场景分析等

http://simulations.narod.ru/ 有 8 个无线电节点可以相互发送数据包。 节点在 2d 中随机分布。 丢包率取决于节点之间的距离。 任务是找到将第一个节点与每个其余节点连接的最佳路由。 节点可以重新发送数据包。 test1_random_nodes.m - 主脚本，运行以显示路由 dijkstra.m - 辅助函数，使用 dijkstra 算法找到最佳路线。 wight_formula.docx - 解释 wights 公式

认知无线电网络中虚拟授权用户入侵者测定探讨.docx

为了更好地提高认知无线电网络中授权频谱的利用率，并为系统用户提供更高质量的服务，采用排队博弈理论研究了混合overlay/underlay频谱共享方式的优化策略。面向认知用户建立了传输时间服从二相阶超指数分布的排队模型，并给出排队模型稳态分布的求解方法。基于收益—支出结构，研究了可视情形下认知用户的个体最优策略及不可视情形下认知用户的纳什均衡策略。以社会收益最优及授权频谱收入最大为目标，给出了认知用户使用授权频谱的接入费用。进行数值实验，揭示了不同策略之间的内在关系，并验证了收费方案的合理性。通过将混合 overlay/underlay 频谱共享方式下的社会最优收益与 overlay 频谱共享方式和 underlay 频谱共享方式下的社会最优收益进行对比，进一步表明了混合 overlay/underlay 频谱共享方式下的社会最优策略能更加稳定且高效地利用频谱资源。

行业分类-电信-在包括分组无线电网络的电信系统中发送消息.rar

行业-电子政务-基于云计算的双向入侵检测系统及方法、认知无线电网络.zip

行业-电子政务-基于PU活动的认知无线电网络的广播方法.zip

行业-电子政务-无线电网络中基于契约的动态频谱分配方法.zip

09年新书，很好的知无线电 网络中的频谱接入和管理，下面是IEEE的书评： The book is divided into three parts. Part one is a general introduction to wire- less communication systems, reviewing communication architectures and tech- nologies, as well as resource allocation protocols and dynamic spectrum access, discussing features, research challenges, and standardization. Part two is a further discussion on wireless system design with a focus on analysis of dynamic spectrum access systems. A brief introduction to signal processing and optimization tech- niques is presented, as well as basics of game theory and intelligent algorithms (e.g., machine learning, genetic algo- rithms, and fuzzy logic). Finally, part three discusses in detail dynamic spec- trum access and management. Models and architectures of dynamic spectrum access are introduced and described in detail. The authors first present the cen- tralized dynamic spectrum access model, and later focus on the distributed approach. Distributed dynamic spectrum access is discussed from the algorithmic and protocol perspectives in separate chapters. Finally, a spectrum trading model is presented with its applications to wireless communications. This book is a valuable source of information for people new to the con- cept of dynamic spectrum access. Also, scientists and engineers already involved in dynamic spectrum access research will find this book a good reference source. This is one of the few books on the mar- ket related to dynamic spectrum access and cognitive radio written completely by the authors themselves. Therefore, it is very cohesive, has a very good flow, and does not repeat itself while intro- ducing new concepts, as do many edited books on a similar topic available on the market. Many concepts of dynamic spec- trum access are well systematized in the book, and the literature review is very broad and complete. One small draw- back is a bit too lengthy introduction to wireless communication systems in part two of the book (which can e