element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet & Tria Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • About Us
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Wireless
  • Technologies
  • More
Wireless
Forum 美研究人员展示新技术可将无线网络提速一倍
  • Blog
  • Forum
  • Documents
  • Polls
  • Quiz
  • Events
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Wireless to participate - click to join for free!
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • Replies 0 replies
  • Subscribers 220 subscribers
  • Views 84 views
  • Users 0 members are here
  • 网络
  • 天线
  • 计算机
Related

美研究人员展示新技术可将无线网络提速一倍

铁丝19
铁丝19 over 14 years ago

作者:天虹   来源:赛迪网 

 

 

 

2月21日消息,据国外媒体报道,美国斯坦福大学研究人员展示了一种不需要增加额外频率就能把通讯网络的数据传输速度提高一倍的技术。这种技术会显著提高无线网络的速度。
    研究人员把这种技术称作简单和有效的新技术。这种新技术依靠三个天线,而不是最新的802.11n无线设备中使用的二个天线。这种技术能够在同一个频率上实现全双工通讯(也就是同时发送和接收数据)。在此之前,这被认为是在物理上不可能实现的事情。
    无线频谱日益拥挤。在不增加额外频率的情况下提高速度是电子工程追求的目标。当一台无线电设备发送信号的时候,它发出的信号太强使它无法接收任何信号。这就像两个人在谈话:如果你在说话,你就不可能听到另一个人在说什么。双方必须轮流说话。到目前为止,无线电通讯基本上是这样工作的。
    这种把速度提高一倍的技术使用一种类似于在某些耳机中使用的降噪技术。因为正在发送信号的设备知道自己发送什么,它可以把这个信号过滤掉以便听到微弱的发进来的信号传输。这就实现了在同一个频率上实现双向通讯的目的。
    斯坦福大学计算机科学和电子工程副教授、这项发明的团队成员Philip Levis称,教科书上说你不可能做这件事。这个新的系统彻底改变了我们如何设计无线网络的设想。

  • Sign in to reply
  • Cancel
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube