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Description: Linux Wireless LAN Project 的目标是开发一个完整的，基于标准的无线 LAN系统，这个系统用的是GNU/Linux 操作系统。把这个项目同Linux 无线扩展和其它 Linux无线项目区分开的是，它完全基于 IEEE 802.11标准。-Linux Wireless LAN Project's goal is to develop a comprehensive, standards-based wireless LAN system, the system is using GNU / Linux operating system. The item with Linux wireless expansion and other wireless Linux projects are separate, it is fully based on the IEEE 802.11 standards.
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Size: 140044 |
Author: 陈洁营 |
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Description: Linux的无线局域网方案是一个Linux设备驱动程序和子系统
一揽子方案的用意是提供全系列的IEEE 802.11标准的Mac
管理功能，用于用户模式公用事业和脚本。
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Size: 301168 |
Author: zhao |
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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
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Size: 8201713 |
Author: chenliwolf@163.com |
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Description: Linux Wireless LAN Project 的目标是开发一个完整的，基于标准的无线 LAN系统，这个系统用的是GNU/Linux 操作系统。把这个项目同Linux 无线扩展和其它 Linux无线项目区分开的是，它完全基于 IEEE 802.11标准。-Linux Wireless LAN Project's goal is to develop a comprehensive, standards-based wireless LAN system, the system is using GNU/Linux operating system. The item with Linux wireless expansion and other wireless Linux projects are separate, it is fully based on the IEEE 802.11 standards.
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Size: 140288 |
Author: 陈洁营 |
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Description: The goal of the Linux WLAN project is to develop a complete, standards based, wireless LAN system using the GNU/Linux operating system. What differentiates this project from the Linux wireless extensions and other Linux wireless projects is that it is basing everything on the IEEE 802.11 standard.
Linux Wireless LAN Project 的目标是开发一个完整的，基于标准的无线 LAN系统，这个系统用的是GNU/Linux 操作系统。把这个项目同Linux 无线扩展和其它 Linux无线项目区分开的是，它完全基于 IEEE 802.11标准-The goal of the Linux WLAN project is to develop a complete, standards based, wireless LAN system using the GNU/Linux operating system. What differentiates this project from the Linux wireless extensions and other wireless Linux projects is that it is basing everything on the the IEEE 802.11 standard. Linux Wireless LAN Project's goal is to develop a comprehensive, standards-based wireless LAN system, the system is using GNU/Linux operating system. The item with Linux wireless expansion and other wireless Linux projects are separate, it is fully based on the IEEE 802.11 standards
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Size: 140288 |
Author: 李飞 |
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Description: 802.11a WLAN PHY
There are *three* versions of the 802.11a physical layer model:
R13/IEEE80211a.mdl:
Requires R13 (MATLAB 6.5) and Stateflow (for adaptive modulation control)
R13/IEEE80211a_NoSF.mdl:
Requires R13 (MATLAB 6.5), but does not require Stateflow.
R13SP1/IEEE80211a.mdl
Requires R13SP1 (MATLAB 6.5.1), but does not require Stateflow.
This latest version also includes some bug fixes.
All Simulink models require the Communications Blockset.
-802.11a WLAN PHY There are three** version s of the 802.11a physical layer model : R13/IEEE80211a.mdl : Requires R13 (MATLAB 6.5) and Stateflow (for ad aptive modulation control) R13/IEEE80211a_N oSF.mdl : Requires R13 (MATLAB 6.5), but does not require Stateflow. R13SP1/IEEE80 211a.mdl Requires R13SP1 (MATLAB 6.5.1). but does not require Stateflow. This latest ver folksy also includes some bug fixes. All Simulink models require the Communications Blockset.
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Size: 200704 |
Author: 刘海涛 |
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Description: 详细介绍了基于IEEE802。11e协议的VoIP系统知识。-Described in detail based on IEEE802. 11e agreement VoIP system knowledge.
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Size: 451584 |
Author: ken2y |
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Description: Linux的无线局域网方案是一个Linux设备驱动程序和子系统
一揽子方案的用意是提供全系列的IEEE 802.11标准的Mac
管理功能，用于用户模式公用事业和脚本。 -err
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Size: 301056 |
Author: zhao |
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Description: The WLAN Traffic Visualizer is a platform independent Java program providing accurate measurement of traffic load and innovative visualization of frame sequences in IEEE 802.11 WLANs.
-The WLAN Traffic Visualizer is a platform independent Java program providing accurate measurement of traffic load and innovative visualization of frame sequences in IEEE 802.11 WLANs.
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Size: 102400 |
Author: 张真 |
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Description: 基于OPNET的IEEE 802.11战场WLAN增援救助仿真及性能评估-OPNET s IEEE 802.11-based WLAN reinforcement relief battlefield simulation and performance evaluation
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Size: 264192 |
Author: wayne |
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Description: OPNET IEEE 802.11 WLAN Modeling and Performance Testing
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Size: 192512 |
Author: 徐园 |
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Description: Interference evaluation of Bluetooth and IEEE 802.11 b systems-The emergence of several radio technologies, such as Bluetooth and IEEE 802.11, operating
in the 2.4 GHz unlicensed ISM
frequency band, may lead to signal interference and result in significant performance
degradation when devices are colocated in the same
environment. The main goal of this paper is to evaluate the effect of mutual interference
on the performance of Bluetooth and IEEE 802.11b
systems. We develop a simulation framework for modeling interference based on detailed MAC
and PHY models. First, we use a simple
simulation scenario to highlight the effects of parameters, such as transmission power,
offered load, and traffic type. We then turn to more
complex scenarios involving multiple Bluetooth piconets and WLAN devices.
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Size: 195584 |
Author: nihao |
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Description: IEEE 802.11 WLAN设计经典书籍
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Size: 906240 |
Author: 陈提 |
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Description: IEEE 802.11a WLAN model
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Size: 198656 |
Author: lokota |
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Description: 此文档描述了IEEE802.11无线局域网协议标准，详细地描述了802.11MAC子层，内容设计802.11a和802.11b物理层的标准以及802.11eMAC子层标准。-This document describes IEEE 802.11 Wireless Local Area Network (WLAN) Standard. It describes IEEE
802.11 MAC Layer in detail and It briefly mentions IEEE 802.11a, IEEE 802.11b physical layer standard and
IEEE 802.11e MAC layer standard.
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Size: 277504 |
Author: 李峰 |
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Description: Realtek Demonstrates Latest UWB, PCI Express Gigabit NIC, WLAN, and DTV Demodulator ICs at Intel ... IEEE 802.11n 2.4GHz, 2T2R, Two-Chip AP/Router Solution The RTL8192SE is an 802.11n single
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Size: 2366464 |
Author: forecast88 |
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Description: this complete phy model of wlan 802.11a for each and every data rate specified by ieee. -this is complete phy model of wlan 802.11a for each and every data rate specified by ieee.
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Size: 6144 |
Author: gagan |
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Description: Investigation of
Next Generation IEEE 802.11n
Wireless Local Area Networks (WLAN)
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Size: 1280000 |
Author: sun2012flower |
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Description: IEEE 802.11a WLAN physical layer model, with demonstration of adaptive modulation and coding
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Size: 358400 |
Author: zuofeiqing |
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Description: The RS9110-N-11-21 module from
Redpine s Connect-io-n™ family of
products is a complete IEEE 802.11bgn
Wi-Fi client device with a standard seria
or SPI interface to a host processor or
data source. It integrates a MAC,
Baseband processor, RF transceiver wit
power amplifier, a frequency reference,
an antenna, and all WLAN protocol and
-The RS9110-N-11-21 module from Redpine' s Connect-io-n ™ family of products is a complete IEEE 802.11bgn Wi-Fi client device with a standard seria or SPI interface to a host processor or data source. It integrates a MAC , Baseband processor, RF transceiver wit power amplifier, a frequency reference, an antenna, and all WLAN protocol and
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Size: 724992 |
Author: chenxiang |
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