Breaking News
Comments
Newest First | Oldest First | Threaded View
docdivakar
User Rank
Manager
re: Design networks for wireless M2M applications
docdivakar   2/15/2012 7:59:33 PM
NO RATINGS
Bert, thanks for the comments, the link you posted at IETF doesn't work; this one does: http://datatracker.ietf.org/wg/manet/charter/ I believe the author does distinguish between 'mesh' or P2P and star networks by stating the fact the most mesh networks function as star's most of the time. You are also right in your observation that star networks are not self-healing while P2P are. I also believe that most M2M implementations in industrial automation will end up being star networks. MP Divakar

Kinnar
User Rank
CEO
re: Design networks for wireless M2M applications
Kinnar   2/10/2012 8:47:35 AM
NO RATINGS
It is very much required protocol which is expected in the talk above, this is also a major research area in ad-hoc networks. Routing over wireless is a stringent matter that will require few years to become optimal.

Bert22306
User Rank
CEO
re: Design networks for wireless M2M applications
Bert22306   2/10/2012 12:49:06 AM
NO RATINGS
I was having a difficult time understanding this, until I figured that perhaps "mesh" and "star," to describe network topologies, were being used interchangeably? A network configured as an RF mesh is a network in which each client node can behave as a router, filling in areas that would otherwise not have coverage. (See for example the MANET working group of the IETF, http://datatracker.ietf.org/wg/manet/.) Instead in a star network, as the article points out, each client node needs to be within range of the hub (server node?), or within range of a router (which in turn is within range of the hub). I certainly agree that stars are simple. However they are not self-healing, as a mesh would be, and they limit bandwidth of the network to whatever the single hub can carry. As the article describes. So, the M2M functions such networks can carry are quite limited. I continue to believe that this recent popularization of the term "M2M" only describes a very small subset of actual machine to machine comms that exist. For instance, any kind of distributed control system.



EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Glen Chenier

Engineers Solve Analog/Digital Problem, Invent Creative Expletives
Glen Chenier
2 comments
An analog engineer and a digital engineer join forces, use their respective skills, and pull a few bunnies out of a hat to troubleshoot a system with which they are completely unfamiliar. ...

Max Maxfield

What's the Best Traveling Toolkit?
Max Maxfield
17 comments
A few years ago at a family Christmas party, I won a pocket knife as part of a "Dirty Santa" game. This little scamp was a Buck 730 X-Tract. In addition to an incredibly strong and sharp ...

Rishabh N. Mahajani, High School Senior and Future Engineer

Future Engineers: Don’t 'Trip Up' on Your College Road Trip
Rishabh N. Mahajani, High School Senior and Future Engineer
10 comments
A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
41 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Top Comments of the Week
Flash Poll
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)