HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comment
cnorton
User Rank
Iron
Re: Part III: ZigBee & Wireless Sensor Networks
cnorton   4/11/2012 2:53:42 PM
NO RATINGS
Fanny,
You have made the point several times that multi-path is required for MIMO to work.  While I agree that overcoming the problems that multi-path causes is one of the strengths of MIMO, I don't understand multi-path being a requirement.  Two transmitters at one place, connected to two separate receivers at another, each pair using a separate multi-path free RF path will provide twice the throughput of one alone.  By extension, any symmetrical MIMO (2x2, 3x3, 4x4).  For a single receiver receiving packets from two transmitters (non-symmetric MIMO, 3x2, 3x4, etc., and cross channel paths) the packets have to arrive at slightly different times, either caused by different RF path lengths (multi-path) or by delaying one of the transmitters.  Perhaps the distinction should be made between multi-path and multiple RF paths.



Partner Zone
Latest Analysis
Your cat demands to be fed on time. With some technical know-how and a 3D printer you can build your own automated cat food dispenser.
At the Design and Manufacturing show in Minneapolis last week, Myst creator Chuck Carter spelled out the future for Virtual Reality: content.
Researchers at the Georgia Institute of Technology have developed fabric that can simultaneously harvest energy from both sunshine and motion.
Kickstarter offers a gazillion ideas for businesses that are seeking start-up funding. The crowdfunding site also features new gadgets from companies struggling to get their product out to customers. We took a look at the gadgets currently featured and found a number of cool ideas that are seeking funding angels.
Design and manufacturing need each other -- and the engineers behind them. Donít forget that.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 12 - 16, Analytics for the IoT: A Deep Dive into Algorithms
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Course June 28-30:
Sponsored by Stratasys
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service