摘要：Paper comes from :IEEE Journal on Selected Areas in Communications, Special Issue on “Cognitive Radio: Theory and Application”, vol. 26, no. 1, January 2008.Radio spectrum resourceis of fundamental importance inwireless communications. Nowadays, the access to radiospectrum is largely based on fixed 阅读全文

摘要：In the computer room of CVPR conference, I am reading Nannan's blog about her feelings facing a suffering patient. I am shocked, by what she sees and by what she thinks.The oral session is being held, however, what the speaker is talking is tedious. Nannan's article makes me reflect the sign 阅读全文

摘要：http://www.comsoc.org/best-readings-cognitive-radioBest Readings is a collection of Journal/Magazine Special Issues, books, articles, and papers on a featured topic. This Best Readings is on Cognitive Radio (CR) Communications and Networking. The contributors are: Ekram Hossain, Dusit Niyato, Ying-C 阅读全文

摘要：我在时域, 你在频域, 需要经过傅立叶变换,才能发现你的美丽,我把爱的语言调制到星座,通过伪随机序列,载波到你的频率,并把波束赋形到你的接收阵列矩阵,你说我的爱噪声太大,经过层层滤波,原来发现,那是在宇宙开始的时候,我发给你的爱的微波背景辐射两百年前粗略的论断催生傅立叶变换不朽的缠绵我在z平面前凝视系统函数的极点祈祷你的收敛域回到我的单位圆 卷积采样 滤波 重建哪怕坐标已变换在抽取插值间守护你不失真的容颜拜读奥本海姆鸿篇以线性系统之名许愿：想像二阶无阻尼振荡到永远当信号只剩下离散的语言DTFT就成了无尽的思念我给你的藏在频谱间在奈奎斯特率之下混叠难现周期的重复被低通滤波还原最初的响应依... 阅读全文