Wireless Networking Research at Berkeley 165
zootallure writes "An interesting article about a self-configuring, wireless networking project going on at Berkeley's Wireless Research Center. Apparently, these Berkeley guys are convinced that they're going to leave Bluetooth and 802.11 in the dust."
Security? (Score:2)
Re:Security? (Score:4, Interesting)
Why? (Score:1)
Security is provided by your application, not your hardware layer. Thats how it should be. Else, once your hardware layer is cracked, ALL your data will be open.
Anyone can make a speedy network (Score:1)
If it weren't for all the TCP/IP crap, network transmissions would be pretty fast. The transmissions would also be pretty useless.
Re:Anyone can make a speedy network (Score:2, Insightful)
It's likely that the true killer applications of this technology have not yet been proposed yet. For example, a network of biological implants might be possible that take measurements from several points and then perform some useful computations. The wireless communication and micropower features would be very attractive (provided that the body doesn't attenuate the operating frequency too much..)
Of course the real question is...... (Score:3, Funny)
Re:Of course the real question is...... (Score:2)
Which then naturally leads to
Imagine a wireless Beowulf cluster of pringles cans!!
Now where did I put my hot grits??
Re:Anyone can make a speedy network (Score:2)
Re:Anyone can make a speedy network (Score:1)
Bah. My description doesn't do it justice, anyone with a more recent memory of the book describe it for the rest of the world?
Re:Anyone can make a speedy network (Score:1)
As for power, his localizers used power from microwave transmissions.
just what we need more of... (Score:1)
Re:just what we need more of... (Score:2)
Wanna know the future of wireless? (Score:4, Interesting)
Wake up (Score:1)
1/r^2 -- directional antennas? (Score:1)
are trying to go point to point you use antennas.
If it's a dish your loss is entirely do to the media your passing through: Water vapor, tree's, etc.
The real bottleneck is that in air you can only use limited bandwidth (in the EE sense.) On a wire you get a huge swath of the EM spectrum, and then you get another huge swath on the wire you put next to it. Or, you get a small portion of a really high frequency EM when you install fiber, and again on the fiber you lay next to it.
Wireless is another LAN & MAN solution, not a backbone solution. Though I'm pretty sure there are microwave links being used to cross Nevada, and why not? Light travels 50% faster in air than in fiber... (EM in clean copper only travels at 2/3 speed too.)
Synthetic directional antennas? (Score:1)
In theory, this should trickle down to consumer devices in 5 years or so. A portable device should be able to analyze the direction of incoming signals from the base station (by trangulation on its microantenna array) to figure out which way to broadcast the response.
Err... I think the artcle post is a bit off... (Score:5, Interesting)
Either the pressdrone have misheard or this is a specific project. Something like the X10 but on the air. It is quite cool for controlling devices and collecting data and stuff but it is a different niche. It is not competing with 802.11b(a) as suggested in the post
Re:Err... I think the artcle post is a bit off... (Score:4, Insightful)
According to Rabaey, each node in the picoradio network will draw no more than 100 microwatts of power, three orders of magnitude less than 802.11b's 300 milliwatts. The benefits of such a low power network are obvious: no batteries are needed because each node can harvest all the energy it needs from its environment.
Re:Err... I think the artcle post is a bit off... (Score:1)
Getting back on topic so I don't get karma raped, hams have been experimenting for years with low power operation, which is called QRP. It's amazing what low power can do. There's hams that have communicated thousands of miles with just millwatts of power.
Re:Err... I think the artcle post is a bit off... (Score:1)
XFM must be happy about this (Score:2)
Since they are all paranoid about 802.11.
Re:XFM must be happy about this (Score:2)
Re:XFM must be happy about this (Score:2, Informative)
If anyone is paranoid, it's the 802.11 people. They're predicting the end of wireless ISPs and most don't have a clue what this is about.
Not really competing with 802.11b/Bluetooth? (Score:2)
Re:Not really competing with 802.11b/Bluetooth? (Score:1)
Military Applications (Score:4, Insightful)
As I was reading the article, I was thinking that picoradio would make an excellent addition to a modern soldier's loadout. As low-power as they are, the transceivers could be used to share data within the small-unit level without radiating enough energy to alert an enemy.
Combine these with the Army's Intervehicular Information System (IVIS), and commanders would have real-time, accurate information on the location of not just every tank, APC, and field artillery piece on the battlefield, but also each soldier. It would definitely work to reduce the number of friendly fire incidents that occur in a future conflict.
Plus, you could connect them to biomonitor equipment that would allow medic teams to both locate and triage injured personnel much faster.
Re:Military Applications (Score:1)
Re:Military Applications:Stealthy too! (Score:2, Insightful)
From the article:
the nodes would monitor variables like temperature variation, light conditions, humidity factors and building occupancy.
What would be neat is if they used natural packaging, such as faux rocks, or seeds. Even thistles that could stick to the enemy.
The US Military already knows (Score:5, Informative)
They're called ad-hoc wireless networks and the military is fully aware of their potential - both systems for maintaining reliable communications on a rapidly changing battlefield, and also the potential to drop thousands of small sensors from planes, etc... They first started looking into them in the early '70s, just after the development of the first wired packet-switching networks.
In 1972 DARPA (the same people that brought you ARPANet, which later grew into the Internet as we know it) created a research project into a packet radio network, a.k.a. PRNet. They didn't get it working until around 1980, but in the end it did work, and was pretty fast too.
The research was eventualy taken by the Army, Navy and Air Force who all started working on ad-hoc wireless networks tailored for their particular needs (for example, while the Army is mostly interested in fairly short-range applications, which this would be useful for, the Navy and Air Force are interested in algorithms to create reliable connectivity between ships, aircraft and ground stations that are below the horizon from each other through networks of satellites and aircraft).
Current US military implementations of ad-hoc wireless networks that I'm aware of are the US Army TF XXI's Tactical Internet, the US Navy's ELB (Extending the Littoral Battlespace) ACTD (Advanced Concept Technology Demonstration) and DARPA's GloMo (Global Mobile) Information Systems program. These are all, for the most part, a bit more high-powered and high-speed than the system these guys are working on.
In the public world, the IETF MANET working group are also trying to create a standard for ad-hoc wireless networking, but like the military implementations these are also a bit higher-end than picoradio. But if you're looking for something to wipe the floor with IEEE 802.11, IETF MANET is what to watch - but be prepared to wait a little while.
Re:Military Applications (Score:2, Insightful)
What is the possibility of a hostile force getting the very basic technology needed to pick up those transmissions and use them to locate said 'wireless enabled' soldier. Sure, the data itself would be encrypted, but with the location and movement vectors of a soldier who is using the system, you have all the information you need to make fairly dramatic changes in that soldier's biometric monitoring.
Interesting research (Score:2, Informative)
I saw Jan Rabaey's talk at the International Solid-State Circuits Conference (ISSCC, the hardest of hardcore circuit conferences). The research is bold and fairly interesting. The slides [berkeley.edu] from the presentation are worth the read. The research might not pan out, but it's definitely worth a shot.
You can find more technical info about his research on the PicoRadio [berkeley.edu] page.
MP3 player included (Score:4, Interesting)
Their current prototype has also a built-in MP3-decoder chip (really!) so it's possible that RIAA & CO will try to shut down the project with DMCA
Here's the homepage [berkeley.edu] of the project.
V.
Re:MP3 player included (Score:1)
Re:Debugging og wireless-networking (Score:1)
Re:Debugging og wireless-networking (Score:1)
whenever somebody around ate onion my spectrum analyzer goes mad!
terminator (Score:1)
Some resources (Score:2, Informative)
So this is just a very low-powered ad hoc wireless network, then. *yawn*
They're talking about creating them to power themselves from their environment, and give examples of generating power from vibrations, or from small solar cells... which makes me wonder whether it would be possible to create picoreadio devices which power themselves from the ambient radiowaves. I know some British scientist built a radio which is entirely self-powered in this way, and it seems to me to be a great way of powering things like these (if their power requirement is low enough). Anyway...
For those who don't know, an ad hoc wireless network is a wireless network like IEEE 802.11, but entirely self configurating, etc... etc... They're pretty neat things, but there aren't any real implementations outside of the US military, so these guys will really have a first if they get picoradio done soon. They're based on such great acronym^H^H^H^H^H^H^Hprotocols such as ZRP (Zone Routing Procol) or DSDV (Destination Sequenced Distance Vector) and DSR (Dynamic Source Routing).
There is currently an IETF working group (MANET) trying to develop some standards, but there's a lot of research to be done first, so it could be a while before you see anything. Once they do put something out in a few years time, it'll kick IEEE 802.11's ass. =)
If you want more info on adhoc networks, you can look at MANET's 'official' webpage here [ietf.org]. That page is pretty useless though, so you should look at their unofficial website here [navy.mil]. It has links to a lot of great resources.
Ad hoc wireless networks are cool.
Re:Some resources (Score:2)
There IS a system outside the military. It was
Richochet! Their radio-network was self-organizing!
Metricom's ORIGINAL product plan called for building a
system of radios that could be hooked up to Utility meters to
get rid of meter readers. They needed the network to be self
organizing so that the radios could be deployed randomly.
It worked.
Could this mean!?.... (Score:2)
Our privacy-hating government would love that. Screw putting all of a person's personal data on a card, just require the use of a COM badge that records your every move, word, which opens doors you are allowed access to, and it also acts as your car key. Whatta world...
Aside from possible applications, the technology itself is fascinating. Don't look at my pointy ears, buddy.
Darn Kids (Score:3, Funny)
Not only does each node cost a heck of a lot less, but they're self-replicating!
Re:Darn Kids (Score:2)
Need a better name (Score:1)
Unfortunaltely I don't think 'picoradio' has the same buzz. I used to work on a wireless system called DECT (you yanks won't of heard of it, but it's big in Euroland), but even that's not catchy enough.
Let's give these chaps a better name for their radio...how about GreenFace or RedSpot:-)
As a current student of Rabaey... (Score:5, Informative)
As a current student in Professor Rabaey's classes, I can say that his ideas are pretty damn cool when he explains it in his own way.
Sure, it's neat that his nodes will need no energy because it "harvests" energy from it's environment.
Development is actually going on so that the "harvesting" actually comes from the natural vibration of a wall! [dailycal.org] [site: dailycal.org]
So what do you get, a bunch of folks each developing their own thing:
nodes the size of a button that you just stick on the wall and it just works.
Pin-and-Play anyone?
(infomercial voice)Set it and forget it!
Links to other work on wireless adhoc networks (Score:3, Informative)
There are many other research programs, both academic and industrial, on wireless ad hoc networks, going back at least to the 1978 DARPA-sponsored Distributed Sensor Nets Workshop at Carnegie-Mellon University. Most of the work has been funded by DARPA, by the low-power wireless integrated microsensors (LWIM) project of the mid-1990s and now by the SensIT project [darpa.mil]. (Their projects page [darpa.mil] lists more than 25 academic research programs on these networks, complete with links.)
The University of California at Los Angeles, often working in collaboration with the Rockwell Science Center, has had a Wireless Integrated Network Sensors (WINS) project [ucla.edu] since 1993. UCLA also supports the similar-but-different "Smart Dust" program [berkeley.edu], which also employs ultra-low-power networking, but uses optical communication between network nodes.
Professor Anantha Chandrakasan at the Massachusetts Institute of Technology is the Principal Investigator of the uAMPS (microAMPS) project [mit.edu].
On the commercial side, these networks are being developed by Ember [ember.com], graviton [graviton.com], Wherenet [wherenet.com], and Motorola, just to name a few.
The ZigBee industry consortium [zigbee.org] is the marketing and compliance arm of the IEEE 802.15.4 draft standard [ieee802.org], in a relationship similar to that between WECA (with the "Wi-Fi" brand) and IEEE 802.11b. This draft standard for ultra-low-power, ultra-low-cost wireless networking, now under development, should be finished this winter.
Another link to work on wireless adhoc networks (Score:1)
P2P meets wireless (Score:2)
"It's almost like querying a database," says Rabaey. "If I send a request into the network saying, 'Give me the temperature in the kitchen,' it propagates through the network until it meets a node that says, 'I'm in the kitchen, and it's 70 degrees.'"
Reminds you of a P2P network, doesn't it? (just to throw in another buzzword....
Re:P2P meets wireless (Score:2)
Temperature, humidity, etc. in each corner of each room of the home. Should also monitor music and light levels adjusting accordingly to where I am.
Ie. I walk closer to a point light, the light should dim slightly. Walk away and it gets brighter to ensure that I always have a consistent level
Thats alot of configuration for an X10 style setup.
Re:P2P meets wireless (Score:1)
Sounds a bit like Vernor Vinge (Score:1)
similar slash story: Nano sized chips [slashdot.org]
another related story: Smart Dust [slashdot.org]
The Human Repeater (Score:1)
This could in 30-40 years grow into something between SE Lain and Ghost in the Shell.
Re:The Human Repeater (Score:1)
CAN (Car area Network) (Score:1)
Nick
Re:CAN (Car area Network) (Score:1)