考虑载波的qpsk信号在瑞利信道上的仿真

A simple example to verify the feasibility of applying compressed sensing for channel estimation. The pilot applies a PN pattern in the frequency domain. The density of pilot is less than the Nyquist sampling rate. Also it is assumed there are sparsity in the channel taps, which is the basis for applying compressed sensing.

OFDMA, Orthogonal Frequency Division Multiple Access is a broad band communication method. Here channel estimation is more crucial. Based on the FFT size used for OFDM transmission method that many number of channel co-efficients are to be estimated and received signals are to be equalized using this co-efficients. Various methods trying to improve the performance and fastness are proposed. As part of master thesis various methods have be studied and evaluated using the WiMAX 802.16 system.

提供个人信息资料的编辑-provide personal information to the Editor

硕士学位论文:LDPC码在瑞利衰落信道中的性能分析 信道编码技术可以带来编码增益，节省宝贵的功率资源，己经成为现代数字 通信系统中必不可少的关键技术。LDPC码采用低复杂度的迭代译码算法，且具有 逼近香农限的性能.由于LDPC码具有诸多优点，它在信息可靠传输中的良好应 用前景己经引起学术界和rr业界的高度重视，成为当今信道编码领域最受瞩目的 研究热点之一。 本文主要探讨了LDPC码在瑞利衰落信道中的性能，基于LDPC码的分组空 时码系统，以及基于LDPC码的正交频分复用系统.-master"s degree thesis : LDPC codes in Rayleigh fading channels Performance Analysis channel coding technology can bring coding gain, Power saving valuable resources have become modern digital communication systems essential to the critical technologies. LDPC low complexity of the iterative decoding algorithm, having approximation Shannon limit performance. Because LDPC has many advantages, It reliable transmission of information in the application of good prospects has been caused rr academia and industry are taking, become the channel coding areas of the most watched one of the hot spots. This paper mainly discusses the LDPC Rayleigh fading channels in the performance Based on LDPC a space-time coding system, and based on LDPC

西门子手机的图片铃声ota格式下载开发文档--Some development documents about downloading pictures and rings in ota format of Simens mobile

BLAST detection algorithm

串口检测程序 -Detecting serial

同步套接字Socket通讯，主要通过TCP/IP进行通讯-Synchronous Socket Socket Communications

the effect of Rayleigh fading in wireless channel, wireless project, for garduate course hope this code be usefull for those peaple who wants to see rayleigh fading effect.

NEMA标准出版PS3.1(199x) 医学数字影像和通讯(DICOM) 前言 iii 0 介绍 0.1历史 0.2 DICOM标准 0.3未来的方向 1 应用程序的范围和领域 2 规范的参考 3 定义 4 符号和缩写 5 DICOM标准的目的 6 DICOM标准的内容概述 6.1 文档结构 6.2 PART 2:遵从性 6.3 Part 3:信息对象定义 6.4 Part 4:服务类的规范 6.5 Part 5:数据结构和语义学 6.6 Part 6: 数据字典 6.7 Part 7:消息交换 6.8 Part 8:消息交换的网络通讯支持 6.9 Part 9:消息交换的点对点通讯支持 7 标准各部分的关系 -NEMA standards published PS3.1 (199x) Medical Digital Imaging and Communications (DICOM) before Introduction iii 0 history on 0.1 0.3 0.2 DICOM standards in the direction of a future application to the scope and leadership Domain 2 standard definition of reference 3 4 5 symbols and abbreviations DICOM standards aim 6 DICOM standards as outlined Document Structure 6.1 6.2 PART 2 : compliance 6.3 Part 3 : Information Object Definition 6.4 Part 4 : Service category norms 6.5 Part 5 : data structure and semantics 6.6 Part 6 : data dictionary 6.7 Part 7 : exchange 6.8 Part 8 : information exchange network communications supp