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[Communication-Mobilesimulation

Description: mimo-mc-cdma系统上行链路中分别针对单用户和多用户的不同检测算法的比较
Platform: | Size: 320605 | Author: 王义 | Hits:

[Other宽带无线通信OFDM技术

Description: 内容简介 《宽带无线通信OFDM技术》系统地阐释了OFDM技术的基本原理、关键技术及与其他一些技术的结合,重点分析了OFDM技术在无线物理层上的一些关键的问题,并论述了OFDM技术在蜂窝移动通信系统中的应用。《宽带无线通信OFDM技术》共有8章:第1章介绍了OFDM技术的历史及其发展过程,第2~4章详细地讲述了OFDM技术的基本原理及其关键技术,第5~7章讨论了OFDM技术和其他一些技术的结合,第8章对OFDM技术应用到蜂窝移动通信中的一些问题进行了简单介绍。 《宽带无线通信OFDM技术》适用于从事移动通信系统研究和开发的技术人员,也可以作为高等院校信息与通信专业师生的参考书。 目录 第1章 OFDM技术简介 1 1.1 移动通信的发展状况 1 1.2 OFDM系统的发展现状 2 1.3 OFDM系统的优缺点 3 1.4 OFDM系统的关键技术 4 参考文献 5 第2章 OFDM技术基础 7 2.1 OFDM的基本原理 8 2.1.1 OFDM的产生和发展 8 2.1.2 串并变换 9 2.1.3 子载波调制 9 2.1.4 DFT的实现 12 2.1.5 保护间隔、循环前缀和子载波数的选择 12 2.1.6 加窗技术 18 2.1.7 RF调制 20 2.1.8 OFDM基本参数的选择 21 2.2 在无线局域网中的应用 22 2.2.1 WLAN IEEE 802.11a 23 2.2.2 HiperLAN/2系统 33 2.3 小结 41 参考文献 41 第3章 OFDM信号检测技术 43 3.1 差分解调 43 3.1.1 时域差分 44 3.1.2 频域差分 44 3.2 相干解调 44 3.3 信道估计 46 3.3.1 基本介绍 46 3.3.2 慢衰落信道下的信道估计算法 47 3.4 同步技术 63 3.4.1 频率同步的必要性 63 3.4.2 OFDM系统同步的实现 65 3.5 小结 76 参考文献 77 第4章 OFDM中的峰均比问题 80 4.1 峰均比定义及分布 80 4.2 解决峰均比问题的方法 82 4.2.1 限幅类技术 82 4.2.2 编码类技术 95 4.2.3 概率类技术 100 4.3 小结 112 参考文献 113 第5章 OFDM多址接入技术 116 5.1 OFDM的多种接入方式 116 5.1.1 跳频OFDMA(FH-OFDMA)方案 118 5.1.2 OFDM-FDMA基本原理 119 5.1.3 OFDM-TDMA基本原理 121 5.2 多载波CDMA 124 5.2.1 概述 124 5.2.2 多载波CDMA方案 125 5.2.3 MC-CDMA系统描述 128 5.2.4 MC-CDMA系统参数最佳化 138 5.2.5 MC-CDMA性能分析 139 5.2.6 MC-CDMA的扩频序列 141 5.2.7 VSF-OFCDM 145 5.2.8 高速高容量的宽带无线接入技术 150 5.3 小结 152 参考文献 152 第6章 OFDM自适应技术 155 6.1 自适应策略的根据:信道状态信息 155 6.2 自适应功率分配 159 6.2.1 基于信道容量最优化的原则 159 6.2.2 基于误比特率性能最优化的原则 160 6.3 自适应调制技术 166 6.3.1 Chow算法 167 6.3.2 Fischer算法 167 6.3.3 简单分组比特分配算法(SBLA) 168 6.4 联合自适应比特、调制和功率分配 170 6.4.1 系统模型 171 6.4.2 单用户比特分配算法 173 6.4.3 多用户子载波和比特分配 174 6.4.4 性能比较 177 6.5 小结 183 参考文献 183 第7章 MIMO-OFDM技术 184 7.1 空时码概述 184 7.2 空时分组码 185 7.2.1 STBC的基本原理 185 7.2.2 STBC在3GPP及3GPP2中的应用 188 7.3 空时格码 190 7.3.1 空时格形编码的系统模型 190 7.3.2 独立准平坦衰落情况下的空时编码标准 191 7.3.3 准静态平坦衰落下的空时码构建 193 7.4 空间复用技术 197 7.4.1 分层空时编码方案 198 7.4.2 对角分层空时编码的译码与接收 199 7.5 改进的空时处理技术 200 7.5.1 基于STBC的技术 200 7.5.2 基于空时格码(STTC)的技术 201 7.5.3 空间复用技术 202 7.6 MIMO信道建模 202 7.6.1 MIMO系统的信道容量 203 7.6.2 MIMO信道的相关性 205 7.6.3 相关矩阵的计算 206 7.7 多输入多输出正交频分复用技术 208 7.7.1 MIMO-OFDM系统 208 7.7.2 MIMO-OFDM系统中的空时编码技术 211 7.7.3 MIMO-OFDM系统中的空时频编码技术 214 7.8 小结 215 参考文献 215 第8章 OFDM在蜂窝移动通信系统中的应用 218 8.1 快衰落信道下的信道估计 218 8.1.1 系统等效基带模型 218 8.1.2 信道估计算法 219 8.2 双工模式和多用户复用方式 226 8.2.1 基于OFDM的多址接入方式 226 8.2.2 TDD和FDD 227 8.2.3 各种不同的多址接入和双工系统 228 8.3 频率复用策略 233 8.4 小结 235 参考文献 236
Platform: | Size: 8201713 | Author: chenliwolf@163.com | Hits:

[OS programuplink

Description: 该程序实现的了2x2的mimo系统收发。运行system程序,可看到接受端的误码率曲线,星图。-the process of the realization of the 2x2 MIMO transceiver system. Operating system procedures, we can see the receiving end of BER curves, star maps.
Platform: | Size: 9048064 | Author: 熊海涛 | Hits:

[Modem programWCDMA_DownlinkSimulator

Description: 这是一个基于WCDMA系统的 MIMO-OFDM下行链路的仿真模型。-This is a WCDMA system based on MIMO-OFDM downlink simulation model.
Platform: | Size: 137216 | Author: wanhong | Hits:

[Communication-Mobilesimulation

Description: mimo-mc-cdma系统上行链路中分别针对单用户和多用户的不同检测算法的比较-mimo-mc-cdma system uplink, respectively, for single-user and multi-user detection algorithm in different comparison
Platform: | Size: 320512 | Author: 王义 | Hits:

[Communication-MobileMCCDMA+OFDM

Description: 通信mccdma和ofdm的一些相关的资料。-OFDM communication mccdma and some relevant information.
Platform: | Size: 614400 | Author: 郑洪波 | Hits:

[OtherMIMO-MC-CDMA

Description: 做多用户检测的一些经典实用的仿真程序与大家分享了,有仿真结果,有备注易懂。-To do some of the classic multi-user detection practical simulation program to share with you, and there are simulation results, there are Notes easy to understand.
Platform: | Size: 2419712 | Author: 李遥 | Hits:

[Communication-Mobileramu-pr

Description: its project reports regarding ofdm and mimo and mc-cdma
Platform: | Size: 6735872 | Author: Ramu.ch | Hits:

[Software EngineeringJURNALpenelitian

Description: PERANCANGAN MIMO ADAPTIF PADA SISTEM MC-CDMA PENGGUNA JAMAK oleh civitas akademika IT Telkom Bandung
Platform: | Size: 403456 | Author: dhuwee | Hits:

[File FormatUWB-DS-CDMAOFDM-MC-CDMA-System

Description: the thesis on mimo ofdm very much helpful to guid about mimo , as my final year project
Platform: | Size: 448512 | Author: fariya | Hits:

[Program docOFDM_PAPER2

Description: Performance Estimation of MIMO-MC-CDMA Using Convolution Code in Different Modulation Technique using ZF Detection Scheme
Platform: | Size: 376832 | Author: xiaozhang | Hits:

[Industry research1MIMO-downlinked

Description: However, to the authors knowledge, the implementation of this idea in the context of MIMO MC-CDMA communications has never been addressed. In this study, our aim is also to develop strategies to alleviate the inherent complexity of the underlying minimization problem. The rest of the article is structured as follows: Section MC-CDMA with SFBC defines basic concepts related to SFBC MC-CDMA. Section PAPR reduction via UR describes the UR technique. Section Dimension reduction is devoted to explore the possibility of reducing the complexity of the optimization problem-However, to the authors knowledge, the implementation of this idea in the context of MIMO MC-CDMA communications has never been addressed. In this study, our aim is also to develop strategies to alleviate the inherent complexity of the underlying minimization problem. The rest of the article is structured as follows: Section MC-CDMA with SFBC defines basic concepts related to SFBC MC-CDMA. Section PAPR reduction via UR describes the UR technique. Section Dimension reduction is devoted to explore the possibility of reducing the complexity of the optimization problem
Platform: | Size: 12288 | Author: emman | Hits:

[Industry research1MIMOOFDMestimation

Description: MC-CDMA with SFBC In the next subsections, we describe the architecture of an SFBC MIMO MC-CDMA transmitter, and define the basic terms related to the PAPR of the involved signals. System model In an MC-CDMA system, a block of M information symbols each active user are spread in the frequency domain into N = LM subcarriers, where L represents the spreading factor. This is accomplished by multiplying every symbol of the block for user k, where k ∈ {0,1,..., L - 1}, by a spreading code , -MC-CDMA with SFBC In the next subsections, we describe the architecture of an SFBC MIMO MC-CDMA transmitter, and define the basic terms related to the PAPR of the involved signals. System model In an MC-CDMA system, a block of M information symbols each active user are spread in the frequency domain into N = LM subcarriers, where L represents the spreading factor. This is accomplished by multiplying every symbol of the block for user k, where k ∈ {0,1,..., L - 1}, by a spreading code ,
Platform: | Size: 4096 | Author: emman | Hits:

[Program doc04394733

Description: SUBSPACE-BASED SPHERE DECODER FOR MC-CDMA IN TIME-VARYING MIMO CHANNELS
Platform: | Size: 268288 | Author: mejsi | Hits:

[Documents1-comp

Description: In this paper, we investigate blind channel estimation for Multiple Input Multiple Output (MIMO) multi-carrier CDMA (MC-CDMA) systems in the uplink scenario. An Autocorrelation Contribution Matrix (ACM) method is proposed in comparison with the subspace approach. Using only second order statistics, the ACM approach shows similar performance to that of subspace based approach. The added advantage is that it eliminates the need for rank estimation and noise power calculation as in subspace technique. In particular we incorporate blind channel estimation with Layered Space Frequency Equalisation (LSFE),which employs successive interference cancellation and therefore provides significant performance improvement over the conventional linear minimum mean square error (MMSE) based approach.
Platform: | Size: 109568 | Author: Casper_z | Hits:

[Communication14321025

Description: mimo-mc-cdma系统上行链路中分别针对单用户和多用户的不同检测算法的比较()
Platform: | Size: 312320 | Author: Pameza | Hits:

[Windows DevelopEKITFNX

Description: mimo-mc-cdma系统上行链路中分别针对单用户和多用户的不同检测算法的比较()
Platform: | Size: 312320 | Author: dmmonstrate | Hits:

[Com Port9977940

Description: mimo-mc-cdma系统上行链路中分别针对单用户和多用户的不同检测算法的比较()
Platform: | Size: 312320 | Author: GZmim%25252524729860 | Hits:

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