802.11ad无线高吞吐量60GHz频段增强标准详解
5星 · 超过95%的资源 需积分: 19 70 浏览量
更新于2024-07-21
1
收藏 3.65MB PDF 举报 "802.11ad官方协议是一个由IEEE制定的无线局域网（WLAN）标准的补充修订版，旨在提高在60GHz频段的极高吞吐量。该协议发布于2012年，由IEEE LAN/MAN标准委员会赞助。它增加了对802.11标准的增强功能，特别是在高速率传输方面。"
802.11ad协议是无线通信领域的一个重要里程碑，其主要目标是提供比传统802.11标准更高的数据传输速率。传统的802.11标准，如802.11n和802.11ac，工作在2.4GHz和5GHz频段，而802.11ad则利用了60GHz的毫米波频谱，这个频段提供了更宽的带宽，从而实现了高达7Gbps的理论最大传输速率。这一高速率使得802.11ad在需要短距离、高速连接的应用场景，如家庭娱乐系统、高清视频流和设备之间的快速文件传输等方面具有显著优势。
802.11ad协议的物理层（PHY）和介质访问控制（MAC）规格都进行了优化以适应60GHz频段的特点。在这个高频段，无线信号的传播特性与低频不同，它们更容易受到障碍物的阻挡和吸收，因此802.11ad采用了多路径衰落和视线（Line-of-Sight, LoS）传输策略，确保在短距离内保持高数据速率。同时，协议还引入了空间多工技术，如正交频分复用（OFDM）和波束成形，以提高信号质量和覆盖范围。
此外，802.11ad协议也考虑了与现有802.11标准的互操作性，例如802.11n和802.11ac，确保设备可以无缝切换到这些标准，以便在没有802.11ad支持的环境下维持连接。同时，802.11ad也包括了错误检测和纠正机制，以确保数据传输的可靠性。
802.11ad协议通过利用60GHz频段的广阔带宽，为无线网络提供了极高的数据传输速度，适用于需要高速连接的场合。然而，其应用范围受限于短距离通信和需要视线的条件，这使得它在某些环境中可能不如其他802.11标准实用。了解并掌握802.11ad协议对于设计和部署高速无线网络的工程师来说至关重要。
xiv Copyright © 2012 IEEE. All rights reserved.
10.2 Power management............................................................................................................... 342
10.2.1 Power management in an non-DMG infrastructure network ............................... 342
10.2.4 SM power save ..................................................................................................... 342
10.2.5 Power management in a PBSS and DMG infrastructure BSS ............................. 342
10.3 STA authentication and association ..................................................................................... 349
10.3.1 State variables....................................................................................................... 349
10.3.2 State transition diagram for nonmesh STAs......................................................... 350
10.3.3 Frame filtering based on STA state ...................................................................... 351
10.3.4 Authentication and deauthentication .................................................................... 353
10.3.5 Association, reassociation, and disassociation ..................................................... 354
10.3.6 Additional mechanisms for an AP collocated with a mesh STA ......................... 363
10.3.7 Communicating PBSS information ...................................................................... 363
10.4 TS operation ......................................................................................................................... 363
10.4.1 Introduction .......................................................................................................... 363
10.4.2 TSPEC Construction............................................................................................. 365
10.4.3 TS life cycle.......................................................................................................... 365
10.4.4 TS Setup ............................................................................................................... 366
10.4.7 Failed TS Setup .................................................................................................... 369
10.4.8 Data Transfer ........................................................................................................ 369
10.4.9 TS Deletion........................................................................................................... 370
10.4.10 TS Timeout ........................................................................................................... 370
10.4.13 DMG allocation formats ....................................................................................... 372
10.4.14 PTP TS Operation................................................................................................. 373
10.5 Block Ack operation............................................................................................................. 373
10.5.2 Setup and modification of the Block Ack parameters .......................................... 373
10.7 DLS operation....................................................................................................................... 374
10.7.1 General.................................................................................................................. 374
10.8 TPC procedures ................................................................................................................... 375
10.8.1 General.................................................................................................................. 375
10.8.2 Association based on transmit power capability .................................................. 375
10.8.4 Specification of regulatory and local maximum transmit power levels ............... 375
10.8.6 Adaptation of the transmit power ......................................................................... 376
10.9 DFS procedures ................................................................................................................... 376
10.9.1 General.................................................................................................................. 376
10.9.2 Association based on supported channels ........................................................... 377
10.9.3 Quieting channels for testing ............................................................................... 377
10.9.7 Requesting and reporting of measurements ......................................................... 377
10.9.8 Selecting and advertising a new channel .............................................................. 378
10.11 Radio measurement procedures............................................................................................ 379
10.11.6 Requesting and reporting of measurements.......................................................... 379
10.11.8 Triggered autonomous reporting .......................................................................... 379
10.11.11 Link Measurement................................................................................................ 379
10.11.14 Multiple BSSID Set .............................................................................................. 380
10.11.16 Access Delay Measurement.................................................................................. 380
10.22 Tunneled direct-link setup .................................................................................................... 380
10.22.1 General..................................................................................................................380
10.23 Wireless network management procedures .......................................................................... 380
10.23.14 Channel usage procedures .................................................................................... 380
10.23.15 Group addressed transmission service.................................................................. 381
10.24 WLAN interworking with external networks procedures .................................................... 382
10.24.3 Interworking procedures: generic advertisement service (GAS).......................... 382
10.27 Procedures to manage OBSS ................................................................................................ 382
10.28 DMG beamformed link and BSS maintenance .................................................................... 382
10.28.1 Beamformed link maintenance............................................................................. 382
剩余627页未读，继续阅读
点击了解资源详情
点击了解资源详情
点击了解资源详情
2023-09-01 上传
2018-05-21 上传
2018-03-30 上传
2010-04-25 上传
2022-09-24 上传
2024-04-10 上传
sshyh2012
- 粉丝: 0
- 资源: 2
我的内容管理
展开
最新资源
- C语言数组操作：高度检查器编程实践
- 基于Swift开发的嘉定单车LBS iOS应用项目解析
- 钗头凤声乐表演的二度创作分析报告
- 分布式数据库特训营全套教程资料
- JavaScript开发者Robert Bindar的博客平台
- MATLAB投影寻踪代码教程及文件解压缩指南
- HTML5拖放实现的RPSLS游戏教程
- HT://Dig引擎接口，Ampoliros开源模块应用
- 全面探测服务器性能与PHP环境的iprober PHP探针v0.024
- 新版提醒应用v2：基于MongoDB的数据存储
- 《我的世界》东方大陆1.12.2材质包深度体验
- Hypercore Promisifier: JavaScript中的回调转换为Promise包装器
- 探索开源项目Artifice：Slyme脚本与技巧游戏
- Matlab机器人学习代码解析与笔记分享
- 查尔默斯大学计算物理作业HP2解析
- GitHub问题管理新工具：GIRA-crx插件介绍
