国际电信联盟

802.11B在物理层上的仿真,DBPSK调制-802.11B in the physical layer simulation, modulation DBPSK

可自行转换为代码 解决的问题： (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法，接收机分别采用等均益合并、最大比合并。用Simulink进行仿真，测量BPSK的误码率性能，画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线，请解释在误码率为0.01时，两种合并方式所表现的不同的物理意义。 (2) 设频率已经同步，请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法，用Simulink进行仿真(自己编写代码S-Function方式)，分析所设计方案的时间同步精度，画出比特信噪比与捕获概率的关系曲线。 请点击左侧文件开始预览 ！预览只提供20%的代码片段，完整代码需下载后查看 加载中 侵权举报

远程数据传输的研究, 远程数据传输的研究-Study of remote data transmission, remote data transmission research

WUYUFEI代码，经典的Turbo串行译码算法的代码，其中包括了sova译码，log-map译码，max-log-map译码算法，仿真条件是在awgn信道的条件下，文件夹中含有BER误码率仿真图可供参考。 文件夹中还另还附有几篇turbo译码的文章。

WiMAX, or the IEEE 802.16 standard for broadband wireless access, is increasingly gaining in popularity as a technology with significant market potential. This paper first provides an overview of the existing and developing 802.16 standards and their key differences/applications. The PHY and MAC layers of a typical WiMAX base station are then described. The associated implementation challenges faced by WiMAX infrastructure developers, including performance/cost/flexibility trade-offs in the choice of silicon, are clearly outlined. The paper then describes how FPGA-based system implementation can address these challenges including the “accelerated time-to-market” requirement which is considered a key enabler for early success in this market. As an example design, the physical layer implementation of the 802.16d standard with Altera FPGAs and intellectual property (IP) is proposed.

在CORBA的开源项目MICO里的一个POA测试软件，服务器端的POA程序用一个默认的仆从servant来响应POA的客户端的请求。-the CORBA open-source projects MICO"s a POA test software, the server-POA procedures with a default proxy servant POA response to the client"s request.

raw socket 封包分析,具体见代码及注释-raw socket packet analysis, specific code and see Notes

各种L2数据网具有不同的通信协议与帧结构，其网络节点设备可以是各种类型的数据交换机（X.25、FR、Ethernet和ATM等分组交换机）；而L3数据网（IP网或internet）具有统一的TCP/IP通信协议和分组结构，全网采用统一格式的IP地址， 节点设备统一采用面向无连接的路由器。为便于理解，我们可以将L3数据网简单地理解为构建在L2数据网平台上的一个路由器网。-L2 data network with a variety of different communication protocol and frame structure, the network node device can be of various types of data switches (X.25, FR, Ethernet and ATM packet switches, etc.) and L3 data network (IP network or internet) have a unified TCP/IP communication protocol and packet structure, the whole network using a unified format for the IP address, node equipment reunification-oriented connectionless router. In order to facilitate understanding, we can L3 data network simply interpreted as a data network built on the L2 platform for a network router.

Some opnet lab manual in Accompanying books

３ＧＰＰ的空间信号模型（ＭＩＭＯ）文档．主要包括ＢＳ和ＡＳ两端的波束角度（入射角和离开角），azimuth 频谱，信道相关系数定义等 -3GPP space signal model (MIMO) document. Mainly include the BS and AS at both ends of the beam angle (angle of incidence and departure angle), azimuth spectrum, channel correlation coefficient definition