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windows核心编程
本书是讲解Windows 操作系统内部机制的专著,作者从基本概念入手,全面系统地介绍了Windows的各种基本构件,如进程、线程、DLL和内存管理等,并列举了大量应用程序,精辟地分析了构件的使用方法,为掌握Windows 编程技巧提供了一条有效的捷径。对于不同水平的Windows 编程人员来说,本书都具有极好的参考价值。
2011-05-06
串口通信类CSerialPort Cserialport 等类
CSerial is the base serial class, which provides a wrapper around the Win32 API. It is a lot easier to use, because it combines all relevant calls in one single class. It allows the programmer to mix overlapped and non-overlapped calls, provides reasonable default settings, better readability, etc, etc.
CSerialEx adds an additional thread to the serial class, which can be used to handle the serial events. This releases the main GUI thread from the serial burden. The main disadvantage of this class is that it introduces threading to your architecture, which might be hard for some people.
CSerialWnd fits in the Windows event driven model. Whenever a communication event occurs a message is posted to the owner window, which can process the event.
CSerialMFC is an MFC wrapper around CSerialWnd, which make the serial classes fit better in MFC based programs.
2011-02-21
Cooperative Communications and Networking.pdf
Cooperative Communications and Networking.pdf
Part I Background and MIMO systems 1
1 Introduction 3
1.1 Wireless channels 4
1.2 Characterizing performance through channel capacity 22
1.3 Orthogonal frequency division multiplexing (OFDM) 25
1.4 Diversity in wireless channels 29
1.5 Cooperation diversity 40
1.6 Bibliographical notes 42
2 Space–time diversity and coding 43
2.1 System model and performance criteria 43
2.2 Space–time coding 47
2.3 Chapter summary and bibliographical notes 60
Exercises 61
3 Space–time–frequency diversity and coding 64
3.1 Space–frequency diversity and coding 64
3.2 Space–time–frequency diversity and coding 98
3.3 Chapter summary and bibliographical notes 113
Exercises 114
Part II Cooperative communications 117
4 Relay channels and protocols 119
4.1 Cooperative communications 119
4.2 Cooperation protocols 121
....................
2010-11-08
时空编码协作分集(硕士论文)
作者在这篇论文中的工作内容和成果如下:
1.对LTE中的中继、协作分集,以及空时编码等方面进行了较系
统的学习研究;
2.根据空时编码和协作分集的特点,提出了空时编码和协作分集
相结合的空时编码协作分集的新算法,并对比不同的通信系
统,通过计算机仿真分析了其性能;
3.研究了在多跳通信系统下的空时编码协作分集,提出了相应的
方案,对平衰落以及瑞利选择性衰落信道条件下的空时编码进
行了研究,通过仿真进行分析比较,得到了一些初步结论,对
今后的研究有一定的参考价值。
2010-07-29
空时编码的MATLAB仿真
% This program simulates the bit-error-rate (BER) performance of OSTBC
% with L=4 antennas over the frequency flat Rayleigh block fading channel
% The code is developed for real orthogonal design, code rate 1/2;
% modulation- 16 QAM with gray coding resulting in 2 bits/sec/Hz.
2010-07-02
Routing Techniques in Wireless Sensor Networks
Routing Techniques in Wireless Sensor Networks
2010-06-29
gold序列MATLAB仿真
% Gold序列是基于m序列优选对产生的,是由两个长度相同、速率相同、
% 但码字不同的m序列优选对模2加后得到的,
% 一对长度为N的m序列优选对可以产生N+2条Gold码。
2010-06-21
直接序列扩频多用户Matlab仿真
% 函数p_error=fun_cdma1(number_of_user,order_of_PN,snr_in_dB)仿真DS系统的误码率;
% 用户数为number_of_user、m序列的节数为order_of_PN、信噪比为snr_in_dB
% 的条件下DS系统的误码率为p_error
2010-06-20
cdma系统的matlab仿真
代码利用一个函数function p_error=fun_cdma1(number_of_user,order_of_PN,snr_in_dB),参数分别代表用户数、扩频因子、信道的信噪比,三个参数决定了输出的误码率,程序没有考虑考虑调制和多径效应等复杂情况,在simulink下仿真的三个用户的误码率就到达0.2,而此程序的误码率就很低,百思不得其解,希望知道的朋友能够指点一下,
2010-06-19
哈弗曼编码的matlab实现
本人在网上也看到不少用matlab实现的哈弗曼编码的代码,但是好像没有看到用哈弗曼树写的,用c写的哈弗曼编码大都采用的的哈弗曼树的思想,于是采用哈弗曼树用matlab实现一下,和大家分享一下,感觉代码中有好多不足之处,希望指出,
2010-06-19
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