baby19851011的博客

非常经典的massive mimo文献。 A multiplicity of autonomous terminals simultaneously transmits data streams to a compact array of antennas. The array uses imperfect channel-state information derived from transmitted pilots to extract the individual data streams. The power radiated by the terminals can be made inversely proportional to the square-root of the number of base station antennas with no reduction in performance. In contrast if perfect channel-state information were available the power could be made inversely proportional to the number of antennas. Lower capacity bounds for maximum-ratio combining (MRC), zeroforcing (ZF) and minimum mean-square error (MMSE) detection are derived. An MRC receiver normally performs worse than ZF and MMSE. However as power levels are reduced, the cross-talk introduced by the inferior maximum-ratio receiver eventually falls below the noise level and this simple receiver becomes a viable option. The tradeoff between the energy efficiency (as measured in bits/J) and spectral efficiency (as measured in bits/channel use/terminal) is quantified for a channel model that includes small-scale fading but not large-scale fading. It is shown that the use of moderately large antenna arrays can improve the spectral and energy efficiency with orders of magnitude compared to a single-antenna system.

这本是姚天任版本的数字信号处理教材，需要用超星阅览器阅读。

第1章 什么是小波 第2章 连续小波变换 第3章 离散小波变换：框架 第4章 时频密度和正交集 第5章 正交小波基与多分辨分析 第6章 紧支撑小波的标准正交基 第7章 紧支撑小波正则性的进一步讨论 第8章 紧支撑正交小波的对称性 第9章 泛函空间的小波刻划 第10章 正交小波基通论及其技巧

数字图像处理的经典教程，初学者尤其适用 人民邮电出版，何斌等编著