Integrated Services in the Presence of Com pressible Flows

本代码是标准的IEEE802.15.4源代码，在无线传感器网络中Zigbee协议中使用

IMS专辑通信3.pdf IMS的最近资料-IMS album communications 3.pdf IMS recent information

IETF12号的文档，比较新，拿来共享给研究P2P和SIP的朋友-IETF12 issue of the documents, a relatively new and used to share research and P2P SIP friends!

数字化与0、1编码. 当今时代最流行的名词――信息化. 信息化=数字化+网络化-Digital encoding and 0,1. The present era the most popular term- information technology. Informationization digital =+ Network

我个人收藏的c++builder源代码文档，介绍了串口通信的开发-some C++ builder documents collected by myself, which are mainly on serial port

8051 控制器与 ADC 和串行通信在 EXCEL 的窗口-鉴别符 它是一个简单的示例如何将模拟转换为数字和可视化处理的新的应用程序

We investigate the case of independent Rayleigh faded paths between antenna elements and find that with high probability extraordinary capacity is available. Compared to the baseline n = 1 case, which by Shannon’s classical formula scales as one more bit/cycle for every 3 dB of signaltonoise ratio (SNR) increase, remarkably withMEAs, the scaling is almost like n more bits/cycle for each 3 dB increase in SNR. To illustrate how great this capacity is, even for small n, take the cases n = 2, 4 and 16 at an average received SNR of 21 dB. For over 99 of the channels the capacity is about 7, 19 and 88 bits/cycle respectively, while if n = 1 there is only about 1.2 bit/cycle at the 99 level. For say a symbol rate equal to the channel bandwith, since it is the bits/symbol/dimension that is relevant for signal constellations, these higher capacities are not unreasonable. The 19 bits/cycle for n = 4 amounts to 4.75 bits/symbol/dimension while 88 bits/cycle for n = 16 amounts t

串口读写 -Serial reading and writing

对于用户来说一款简单，方便，快捷的邮件收发系统将会在很大程度上为用户提供满意的服务，制作一款能满足用户需求的邮件收发系统是每一个设计者所追求的目标。该系统完成一个简单的邮件收发系统，实现邮件的接收与发送，并能完成附件的传输，同时能实现邮件用户登录管理及邮件删除等功能

ROC curves illustrate performance on a binary classification problem where classification is based on simply thresholding a set of scores at varying levels. Lenient thresholds give high sensitivity but low specificity, strict thresholds give high specificity but low sensitivity the ROC curve plots this trade-off over a range of thresholds (usually with sens vs 1-spec, but I prefer sens vs spec this code gives you the option). It is theoretically possible to operate anywhere on the convex hull of an ROC curve, so this is plotted too. The area under the curve (AUC) for a ROC plot is a measure of overall accuracy, and the area under the ROCCH is a kind of upper bound on what might be achievable with a weighted combination of differently thresholded results from the given classifier -ROC curves illustrate performance on a binary classification problem where classification is based on simply thresholding a set of scores at varying levels. Lenient thresholds give high sensitivity but