分类：标准规范    下载：0    浏览：424    时间：2025-12-29

最新版本下载： IEEE P802.11be D3.0 2023 WiFi7协议白皮书 IEEE Standard 802.11be Draft 1.5 2022 WiFi7协议白皮书 IEEE P802.11be/D1.0, May 2021 Draft Standard for Information technology— Telecommunications and information exchange between systems Local and metropolitan area networks— Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 8: Enhancements for extremely high throughput (EHT)

分类：WiFi相关    下载：1    浏览：490    时间：2025-12-29

《Wi-Fi网络权威指南——802.11ac》是一本由西安电子科技大学出版社翻译出版的专业书籍，系统深入解析了802.11ac（即Wi-Fi 5）技术，涵盖其核心技术（如波束成形、MU-MIMO）、相对于802.11n的演进、更高的传输速率（理论最高3.5Gbps）与5GHz频段应用，以及对无线网络规划与设计的实践指导，适合网络工程师和爱好者深入学习无线通信。 目录  · · · · · · 序 1 前言 5 第一章802.11ac导论 12 1.1历史 12 1.2 802.11ac核心技术 15 1.2.1波束成形(Beamforming)和多用户MIMO(MU-MIMO) 17 1.2.2 802.11ac工作频段 19 1.3 802.11ac产品开发计划 21 第二章 物理层（The PHY） 22 2.1扩展MIMO操作 22 2.2 802.11ac无线信道 23 2.2.1无线信道布局 23 2.2.2可用信道频谱资源 27 2.3传输：调制、编码和保护间隔 29 2.3.1调制和编码策略（MCS） 29 2.3.2保护间隔（Guard Interval） 32 2.3.3纠错码（Error-Correcting Codes） 33 2.4物理层帧 33 2.4.1 VHT信号字段 35 2.4.2数据字段 40 2.5发送和接收过程 42 2.6 802.11ac数据速率 45 2.6.1 802.11ac数据速率矩阵 46 2.6.2 802.11ac与其他802.11物理层数据速率的比较 49 2.7 强制性物理层功能 50 第三章 介质访问控制（MAC） 51 3.1 帧构成 51 3.1.1帧大小和聚合 52 3.1.2管理帧 54 3.2介质访问过程 59 3.2.1空闲信道评估（CCA） 59 3.2.2 802.11ac与传统802.11设备的保护和共存 63 3.2.3动态带宽操作（RTS / CTS） 65 3.3安全 69 3.4强制性MAC功能 71 第四章 波束成形 73 4.1 波束成形基础 73 4.1.1 802.11ac空数据包（NDP）波束成形 78 4.2单用户（SU）波束成形 83 4.2.1单用户波束成形的信道校准 84 4.3多用户（MU）波束成形 88 4.3.1多用户波束成形的信道校准 88 4.3.2多用户MIMO传输 91 4.3.3 MU-MIMO的实现 95 第五章 802.11ac无线网络规划 100 5.1 802.11ac的准备工作 101 5.1.1紧跟802.11ac技术浪潮 102 5.1.2客户端设备混合 104 5.2.3应用规划 106 5.1.4物理网络连接 108 5.1.5安全 111 5.1.6更多的规划考虑 113 5.2 802.11ac无线规划 114 5.2.1可用无线信道 114 5.2.2覆盖和容量评估 114 5.2.3设备选型 119 5.2.4 802.11ac网络架构 121 5.2.5硬件考虑 127 5.3构建802.11ac网络 130 5.3.1信道选择 130 5.3.2网络优化 132 5.4检查清单 136 名词解释 138

分类：标准规范    下载：1    浏览：1135    时间：2025-01-13

IEEE P802.11be/D3.0, January 2023 Draft Standard for Information technology— Telecommunications and information exchange between systems Local and metropolitan area networks— Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 8: Enhancements for extremely high throughput (EHT) Prepared by the 802.11 Working Group of the LAN/MAN Standards Committee of the IEEE Computer Society Abstract: This amendment defines standardized modifications to both the IEEE Std 802.11 physical layers (PHY) and the Medium Access Control Layer (MAC) that enable at least one mode of operation capable of supporting a maximum throughput of at least 30 Gbit/s, as measured at the MAC data service access point (SAP), with carrier frequency operation between 1 and 7.250 GHz while ensuring backward compatibility and coexistence with legacy IEEE Std 802.11 compliant devices operating in the 2.4 GHz, 5 GHz, and 6 GHz bands. This amendment defines at least one mode of operation capable of improved worst case latency and jitter. Keywords: EHT, extremely high throughput, jitter, latency, MAC, medium access control, PHY,physical layer, wireless local area network, WLAN

分类：标准规范    下载：9    浏览：992    时间：2025-01-13

IEEE P802.11be/D1.5, March 2022 IEEE P802.11be/D1.5 Draft Standard for Information technology— Telecommunications and information exchange between systems Local and metropolitan area networks— Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 8: Enhancements for extremely high throughput (EHT) Prepared by the 802.11 Working Group of the LAN/MAN Standards Committee of the IEEE Computer Society IEEE P802.11be™/D1.5, March 2022 (amendment to IEEE 802.11-2020 standards as amended by IEEE P802.11ax™-2021, IEEE P802.11ay™-2021, IEEE P802.11az™/D4.0, IEEE P802.11ba™-2021, IEEE P802.11bb™/D0.7, IEEE P802.11bc™/D2.0, IEEE P802.11bd™/D2.1) and IEEE P802.11-REVme™/D1.1) Abstract: This amendment defines standardized modifications to both the IEEE Std 802.11 physical layers (PHY) and the Medium Access Control Layer (MAC) that enable at least one mode of operation capable of supporting a maximum throughput of at least 30 Gbps, as measured at the MAC data service access point (SAP), with carrier frequency operation between 1 and 7.250 GHz while ensuring backward compatibility and coexistence with legacy IEEE Std 802.11 compliant devices operating in the 2.4 GHz, 5 GHz, and 6 GHz bands. This amendment defines at least one mode of operation capable of improved worst case latency and jitter. Keywords: EHT, extremely high throughput, jitter, latency, MAC, medium access control, PHY, physical layer, wireless local area network, WLAN

分类：标准规范    下载：6    浏览：653    时间：2025-01-13

IEEE Standard for Information Technology Telecommunications and Information Exchange between Systems Local and Metropolitan Area Networks Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications IEEE Computer Society Developed by the LAN/MAN Standards Committee IEEE Std 802.11™‐2020 (Revision of IEEE Std 802.11‐2016) Abstract: Technical corrections and clarifications to IEEE Std 802.11 for wireless local area networks (WLANs) as well as enhancements to the existing medium access control (MAC) and physical layer (PHY) functions are specified in this revision. Amendments 1 to 5 published in 2016 and 2018 have also been incorporated into this revision.

分类：标准规范    下载：12    浏览：795    时间：2023-07-05

IEEE Std 802.11af-2013 802.11af标准白皮书 IEEE 802.11af允许无线局域网使用空白电视频段来传输，特点是频率低，穿透性高。又称为“白WiFi”、“超级WIFI”。 IEEE Standard for Information technology—elecommunications and information exchange between systems Local and metropolitan area networks—Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 5: Television White Spaces (TVWS) Operation Approved 11 December 2013 IEEE-SA Standards Board Abstract: Enhancements to the IEEE 802.11 physical layers (PHYs) and medium access control (MAC) sublayer to support operation in the white spaces in television bands are defined. Keywords: IEEE 802.11af™, television white spaces, TVWS, wireless LAN, WLAN

分类：标准规范    下载：14    浏览：1060    时间：2022-11-19

IEEE Standard for Information Technology Telecommunications and Information Exchange between Systems Local and Metropolitan Area Networks Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 1: Enhancements for High-Efficiency WLAN IEEE Std 802.11ax 2021 (Amendment to IEEE Std 802.11 2020) Abstract: Modifications to both the lEEE 802.11 physical layer (PHY) and medium access contro(MAC) sublayer for high-efficiency operation in frequency bands between 1 GHz and 7.125 GHzare defined in this amendment to lEEE Std 802.11-2020. Keywords: dense deployment, high efficiency, IEEE 802.11T, IEEE 802.1 1ax™, MAC, mediumaccess control, OFDMA, orthogonal freguency division multiple access, PHY, physical layerwireless local area network,WLAN

分类：标准规范    下载：7    浏览：2098    时间：2021-01-07

PERRY CORRELL DIR. PRODUCT MANAGEMENT WI-FI ROAMING WLAN roaming is designed to allows wireless client devices to connect to nearby access points with the same SSID without losing connection Over Wi-Fi existence several proprietary and standards based approaches have been attempted to create a ‘seamless’ experience when transitioning to a neighboring AP.

分类：标准规范    下载：10    浏览：1084    时间：2021-01-07

Abstract—IEEE 802.11k is an extension of the IEEE 802.11 specification for radio resource measurements. In an IEEE 802.11k-enabled wireless LAN, an access point or other network element may request from a client or another access point to monitor and report the load of a channel. We call the latter a channel monitoring station. In this paper we propose a mechanism for a channel monitoring station to efficiently derive accurate values of channel load.We especially focus on optimizing the duration of channel monitoring and thus minimize the impact on applications. Note that such mechanisms are critical for the success of new sharing regimes such as Cognitive Radio and Open Spectrum Access.

分类：标准规范    下载：12    浏览：1403    时间：2018-04-27

Approved 11 September 2009 IEEE SA-Standards Board Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 4: Protected Management Frames

分类：设计开发    下载：1    浏览：1086    时间：2017-11-17

IEEE802.11 工作组近年来开始定义新的物理层标准IEEE802.11ｇ。与以前的IEEE802.11 协议标准相比，IEEE802.11ｇ草案有以下两个特点：在2．4 GHz频段使用正交频分复用（OFDM）调制技术，使数据传输速率提高到20 Mbit/s 以上；能够与IEEE802.11ｂ的Wi-Fi 系统互联互通，可共存于同一AP 的网络里，从而保障了后向兼容性。这样原有的WLAN 系统可以平滑地向高速WLAN 过渡，延长了IEEE802．11b产品的使用寿命，降低了用户的投资。2003 年7 月IEEE802.11 工作组批准了IEEE802.11ｇ草案，该标准成为人们关注的新焦点。

分类：标准规范    下载：0    浏览：1481    时间：2017-08-13

张兰 (内蒙古赤峰学院计算机与信息工程学院，内蒙古赤峰024000) 摘 要：IEEE802.11协议族是电气和电子工程师协会工作组制定的无线局域网规范，被广泛应用到局域网、校园网、以及用户与用户终端的无线接入。2012年初最新形成IEEE 802.11ac协议， 目前正逐步成为无线网协议的主流协议，深入学习和研究IEEE802.11ac协议，对推动无线网络的快速发展有着重要的意义。 关键字：802.11ac；协议；特点