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[Communicationrch_acc_25

Description: hiperlan协议中mac接入仿真,one proposed way for random RCH number-hiperlan agreement mac access simulation, one proposed way for random number RCH
Platform: | Size: 3922 | Author: mac | Hits:

[Other resourcedsp-plextek_ofdm_modem

Description: OFDM Modem Applications • Digital Video Broadcast (DVB) • Digital Audio Broadcast (DAB) • Broadband Wireless Access (802.16x) • Wireless LAN (802.11x & HiperLAN) Orthogonal OFDM Sub-carriers Orthogonal Frequency Division Multiplexing (OFDM)
Platform: | Size: 110424 | Author: leonvan | Hits:

[Other resourcehiperlan2

Description: HiperLAN/2 reference model. 16QAM mode with 3/4 code rate (4/6 P2 puncturing rate).
Platform: | Size: 7015 | Author: 骄阳 | Hits:

[Communication-Mobilehiperlan2

Description: HIPERLAN/2,16QAM mode with 3/4 code rate (4/6 P2 puncturing rate)
Platform: | Size: 8864 | Author: 何德鉴 | Hits:

[Other resourceHiperlan

Description: 绝版的HiperLan的信道标准,包括离散信道的和连续信道的power delay profile
Platform: | Size: 485938 | Author: yuan | 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:

[Communicationrch_acc_25

Description: hiperlan协议中mac接入仿真,one proposed way for random RCH number-hiperlan agreement mac access simulation, one proposed way for random number RCH
Platform: | Size: 4096 | Author: mac | Hits:

[Otherdsp-plextek_ofdm_modem

Description: OFDM Modem Applications • Digital Video Broadcast (DVB) • Digital Audio Broadcast (DAB) • Broadband Wireless Access (802.16x) • Wireless LAN (802.11x & HiperLAN) Orthogonal OFDM Sub-carriers Orthogonal Frequency Division Multiplexing (OFDM)-OFDM Modem Applications
Platform: | Size: 110592 | Author: | Hits:

[matlabhiperlan2

Description: HiperLAN/2 reference model. 16QAM mode with 3/4 code rate (4/6 P2 puncturing rate). -HiperLAN/2 reference model. 16QAM mode with 3/4 code rate (4/6 P2 puncturing rate).
Platform: | Size: 7168 | Author: 骄阳 | Hits:

[Communication-Mobilehiperlan2

Description: HIPERLAN/2,16QAM mode with 3/4 code rate (4/6 P2 puncturing rate)-HIPERLAN/2,16 QAM mode with 3/4 code rate (4/6 P2 puncturing rate)
Platform: | Size: 8192 | Author: 何德鉴 | Hits:

[OtherHiperlan

Description: 绝版的HiperLan的信道标准,包括离散信道的和连续信道的power delay profile-Out of print the channel HiperLAN standards, including discrete and continuous channel channel power delay profile
Platform: | Size: 485376 | Author: yuan | Hits:

[OtherH2_PHY

Description: HIPERLAN/2 physical layer standard
Platform: | Size: 179200 | Author: Hieu | Hits:

[matlabhiperlan2

Description: 一个用Simulink做的基于OFDM的Hiperlan/2程序-Using Simulink to do an OFDM-based Hiperlan/2 procedures
Platform: | Size: 7168 | Author: qz | Hits:

[Program docHPL-2001-246GreatComplexityreduction

Description: Simplified Soft-Output Demapper for Binary Interleaved COFDM with Application to HIPERLAN/2
Platform: | Size: 162816 | Author: ustad yahoo | Hits:

[SCMpaper_4

Description: A Comparison of HIPERLAN/2 and IEEE 802.11a Wireless Local Area Networks (WLANs) supporting broadband multimedia communication are being developed and standardized. Two such standards are HIPERLAN/2, defined by ETSI BRAN and the IEEE’s 802.11a are compared.
Platform: | Size: 70656 | Author: Amol/justamol | Hits:

[Communication-Mobileextended_vertical_handover

Description: Next generation wireless network is envisioned as a convergence of different wireless access technologies providing the user enhanced connection any where any time to improve the systems resource utilization. It is likely that WLAN/HIPERLAN will become an important complementary technology to cellular networks and typically used to provide hotspot coverage where there is a high density of users. In such converged systems, co-existence of heterogeneous access technologies with largely different characteristics like data rate for cellular network (2 Mbps), WLAN 802.11b (11 Mbps) and HIPERLAN (54 Mbps) results in handoff asymmetry that differs from the traditional intra-network handoff (horizontal handoff).
Platform: | Size: 7168 | Author: dileesh | Hits:

[Communication-MobileHO

Description: Next generation wireless network is envisioned as a convergence of different wireless access technologies providing the user enhanced connection any where any time to improve the systems resource utilization. It is likely that WLAN/HIPERLAN will become an important complementary technology to cellular networks and typically used to provide hotspot coverage where there is a high density of users. In such converged systems, co-existence of heterogeneous access technologies with largely different characteristics like data rate for cellular network (2 Mbps), WLAN 802.11b (11 Mbps) and HIPERLAN (54 Mbps) results in handoff asymmetry that differs from the traditional intra-network handoff (horizontal handoff).
Platform: | Size: 1024 | Author: dileesh | Hits:

[Program docwsn

Description: A repoer on WATM & HIPERLAN
Platform: | Size: 720896 | Author: bannuuniversity | Hits:

[Communication-Mobilehiperlan_mac

Description: hiperlan协议中mac接入仿真,针对不同随机访问信道数(RCH)进行吞吐量的比较-one proposed way for random RCH number-hiperlan agreement mac access simulation, one proposed way for random number RCH
Platform: | Size: 4096 | Author: 夏静 | Hits:

[Internet-Networkrouter

Description: HIPERLAN 2,16QAM mode with 3 4 code rate (4 6 P2 puncturing rate()
Platform: | Size: 8192 | Author: cojojmsa | Hits:
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