Computer serial communication is used to achieve control of the GPRS module and...

为了增强BAN系统的抗突发能力和提高系统可靠性，应对经过扩频后的数据进行交织。交织器本质上并不改变信息的内容而是改变信息的结构，是把信道传输过程中产生的集中错误最大限度的离散化

G.711通信协议以及压缩解压缩代码.-communication protocol and G.711 compression decompression code.

网吧计费管理系统，非常好用的客户端程序。大家下看看，提供数据库-Internet cafe billing management system, a very useful client program. We next look at the provision of a database

this is a code which measures freuency occuring at outside

此文档是介绍孤子在饱和介质中传输的matlab仿真过程，孤子仿真网上有很多文章，可是均不带源码，恰巧本人编了些就都传上了，希望对各位有用。-Introduction This document is at saturation soliton transmission medium matlab simulation process, there is a lot of soliton simulation online article, but not with source code, I made something happen on both a mass on the hope that useful to you.

一个非常实用的号码魔方工具，可以对手机号码实现排序整理，过滤，等功能。对于搞短信的朋友很有用处，其实际功能请下载体验-A very useful tool number cube, you can achieve the sort of phone number collating, filtering, and other functions. Message for the friends engage in useful, and its actual function please download experience

IP对IP的语音聊天,VB写的,比较不错-IP to IP voice chat, VB written relatively good

C语言窗口通信，利用FPGA来实现和电脑的农信-C-window communication

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

利用哈夫曼编码进行通信可以大大提高通信信道利用率，缩短信息传输时间，降低传输成本。这要求在发送端通过一个编码系统将传输数据预先编码；在接收端将传来的数据进行译码（复原）。对于双工信道（即可以双工传输信息的信道），每端都需要一个完整的编/译码系统。为这样的信息收发站设计的一个哈夫曼编/译码系统。 (2-use Huffman coding communication can greatly enhance communication channel utilization, reduced transmission time, and lower transmission costs. This requires the transmitter through a coding system will transmit data in advance coding; The receiving end of the data came decoding (recovery). For dual-channel (that is, information can duplex transmission channel), each side needs a complete encoding/decoding system. For this information hubs designed a Huffman encoding/decoding system. (2005-5-