linr

说明：  The reference communication system for Orthogonal Time Frequency Space modulation

the Development of SCM

103转modbus协议C程序，支持多个485端口并能够配置(103 turn modbus protocol C program, more than 485 ports and supports the ability to configure)

artificial transportation system and internet of vehicles, internet of things, vanet, intelligent transportation.

使用MFC编写的windows环境下的串口操作工程模板(Serial port operation project templates written using MFC windows environment)

MIMO system...... it employs almouti code using STBC to achive diversity

A simulator for wireless sensor networks using omnet ++ framework

Turbo码的产生及研究现状 Turbo码编码译码 Matlab介绍及仿真结果(KEY WORDS channel-coding, Turbo-code, viterbi-decoding)

说明：  ：载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2 种算法，即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本 思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小，精度不高，而基于训练序列 的算法有较高的估计精度，但降纸了系统传输效率。(Abstract：Carrier frequency ofset is one of the key problems in OFDM system．Two foundational methods 。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency ofset are analyzed．Then it discusses their basic thoughts。implementing methods and simulation resuits． Finally。merits and demerits of every algorithm are supposed．It concludes that the cycling prefix— based algorithm has less complexity and less precision。and that the training sequence—based algorithm has better estimation performance at the cost of transmission efficiency．)

说明：  ns2.33这是目前比较新的ns2版本，欢迎下载(ns2.33 This is relatively new ns2 version, welcome to download)