Aruba + Dartmouth


Dartmouth College in Hanover, NH, and Aruba Networks say they’re building one of the world’s largest and most innovative Wi-Fi networks for wireless voice, video and data services.

Dartmouth is supporting next-generation voice, video and data services throughout its 200 building, 1.5 square mile campus by deploying over 350 Aruba dual-radio 802.11a+b/g access points and 12 Aruba 5000 wireless LAN switches.

Over the next several months, Dartmouth is replacing over 550 Cisco 350 802.11b APs with dual-radio 802.11a+b/g Aruba 70 APs.

“When we installed our first AP, the technology we used was state-of-the-art, but the state-of-the art has quickly changed. We needed to change with it, but more importantly, we needed an architecture that could adapt to change,” said Brad Noblet, director of Technical Services at Dartmouth College. “We are deploying wireless on such a large-scale that scalability, performance and security were non-negotiable items. Aruba had the only system we found that could reliably deliver all three.”

Dartmouth’s Wi-Fi network is being built to support more than 6,000 undergraduate and graduate students and 2,500 faculty and staff with voice, cable TV and data along with new location services over an 802.11 infrastructure supported by Aruba wireless LAN (WLAN) switching technology.

Nearly every Dartmouth student owns a personal computer and more than 9,000 PCs are in use campus wide. According to the college, approximately 90 percent of new freshman arrive with 802.11-enabled laptops.

The Dartmouth project was driven by the need for centralized wireless management, future-proofed protection and flexible security options. According to Dartmouth, universal authentication on any port and the migration to 802.1X for both wired and wireless users were key factors in the upgrade.

“We currently operate an open network but are moving users to 802.1X,” said Noblet. “Aruba lets us do this quickly and easily from a central location for both wired and wireless users without impacting the ongoing operation of the infrastructure.

Dartmouth is using Cisco IP Softphones, a Windows-based client. Bellevue, Wash.-based TeleSym is also developing clients for both Pocket PC and Palm handheld devices, as well as for the Mac OS laptops and PDAs.

WiFi Planet has a list of companies offering of Wi-Fi/cellular and VoIP phone calling from handhelds.

At any given time 50 staff or students are also using Vocera IP badges over Wi-Fi within Dartmouth’s Thayer Engineering School. It can uniquely identify voice and data traffic coming from the same laptop and prioritize voice over data to ensure the high quality calls.

Dartmouth is replacing its cable TV plant with cable over Wi-Fi by converting NTSC and digital cable signals to MPEG for streaming over its 802.11 infrastructure.

With voice, video and data running over Wi-Fi, Dartmouth improves its ability to quickly provide multi-media services to students and faculty wherever they are and reduces capital and operational costs from physical cabling changes that must be made.

“Aruba gave us 802.11a and b/g support in APs that can be managed from a single point. It also delivered a central point for all security and RF visibility and management that we didn’t have with our existing wireless system”,” said Noblet.

Netopia Adds QOS


Netopia today announced a WiFi gateway with Quality of Service (QoS) controls for voice, video, and data services.

The 3300-VGx Series Triple Play Gateways use what Netopia has dubbed VGx Virtual Gateway which uses a combination of Virtual LAN and QoS to create up to eight individual service channels. These channels can then be dedicated to supporting various applications such as gaming, VoIP and video.

The gateways are available now through service providers and VARs only.

The Netopia Hot Spot Starter Kit ($329), which has been available for some time, is a turnkey public hotspot solution. It integrates with the Netopia Hot Spot Service to control and meter Wi-Fi access. The kit contains cards with unique access codes that are disposable for one-time use, in one-hour and one-day denominations.

Other managed hotspot gear includes the D-Link Airspot DSA-3100 Hot Spot Gateway ($499), which provides business owners a simple solution for adding public Internet service to their establishment while still maintaining the integrity of their existing network. Sputnik has a powerful $200 Gateway with centralized management capabilities.

Billion Dollar Laptop


From PC Thoughts:

“Outgoing Secretary of State Kevin Shelley told San Francisco police that his Glen Park home was burglarized over the weekend by someone who bypassed valuable property in favor of his state-issued handheld computer….Shelley’s personal digital assistant device was said by employees to be one of his most prized possessions.

He reportedly bragged to them so often about using it to raise $3 million in donations for his 2002 campaign for secretary of state that they came to dub it “the Palm Pilot speech.”

Handheld security is no longer a joke, and if you’re not careful you could be the next victim of information theft via your handheld — not only via online mechanisms a la Sidekicks, but actual physical theft as well.

Unfortunately, with PDA/Smartphones, it becomes clumsy to lock the device all the time. As a compromise, I use eWallet for any seriously private information and make sure to be obsessive about “patting down my pockets” and keeping my PDAs close to me. How do you protect yourself?

Industrial spying may not get much publicity. But it’s out there. U.S. authorities arrested a 35-year-old California man on Sunday and charged him with illegally sending proprietary data from his employer, a Fremont, California, company that makes semiconductors, to a competitor in Taiwan. Irwin Jacobs stolen laptop had Qualcomm’s trade secrets and confidencial correspondence.

Draw a 3 mile radius around a high tech park. Are some “businesses” really fronts for international espionage? It happens. And, of course, there’s lots of spying between companies. Just ask Boeing — or Airbus.

The USS Jimmy Carter, officially commissioned just last week, may be the top U.S. spy. It reportedly taps oceanic fiber networks. Once the water depth exceeds 1,000 feet, they usually are left to run uncovered along the ocean floor.

Nuclear propulsion is out of reach for most countries, placing the focus is squarely upon diesel-electric propulsion technology, coupled with recently maturing Air-Independent Propulsion (AIP) technology. With the addition of AIP, diesel submarines have the potential to play a more powerful role in naval strategy.

Conventional diesel-electric subs are operationally limited by the need to approach the surface every few days, or at least to extend a snorkel above the surface to replenish their air supply and operate the diesel engines to recharge the main batteries. One form of Air-Independent Propulsion will allow diesel-electric subs to continue running their diesel engines under the surface, generating electric power for propulsion while submerged for up to two weeks at a time.

AIP is a closed-loop system where a constant chemical reaction between hydrogen in gas form and liquid oxygen takes place to generate electrical energy. In addition, AIP is quiet and does not produce exhaust heat, which makes the sub nearly undetectable.

The German submarine-builder, Howaldtswerke-Deutsche Werft AG (HDW), developed the AIP technology. The merger of HDW and Kockums creates the largest non-nuclear submarine building company in the world.

Top Ten Signs Your Co-Worker May Be An Industrial Spy
    10. Prefers coffee shaken, not stirred

    9. Unusual increase in mortality rate during product testing

    8. The strange way his pants vibrate without a pager

    7. Before accepting layoff notice, asks for details of your master plan

    6. When shown NASA Tech Briefs article on new particle-beam weapons, he says “yeah, got one just like it in my shoe.”

    5. Instead of computer solitaire, he plays baccarat

    4. Emerges from performance review with collar folded in and shirt untucked

    3. Actually knows the correct status of all his projects…and yours

    2. You begin to suspect his interest in your wastebasket is less than honorable

    …and the No. 1 sign your co-worker may be an industrial spy

    1. Wears white dinner jacket and black bow tie on casual day

Copps Interview on C/Net


C/Net has an in-depth interview with Michael Copps, one of two Democrats on the five-member Federal Communications Commission.

He is outraged that the United States isn’t near the top of countries with broadband penetration. While admitting the difficulty in comparing the United States with Japan, Korea or Norway, Copps also voices the growing restlessness of government officials who fret about the private sector’s ability to ensure that all Americans get access to broadband.

Copps explains Why our broadband policy’s still a mess.

Motorola’s Mesh Cloud


Motorola, which added MeshNetworks to its wireless data solutions portfolio last year, today announced that Buffalo, MN has gone live with its Motorola Mesh Network solution, offering high-speed mobile broadband access to police and other city employees. As a result, Buffalo police patrol cars are now mesh-enabled, transforming them into mobile broadband offices.

Police officers now have instant high-speed access to mission critical data, video and multimedia communications providing them with greater situational awareness as they arrive on the scene of an incident. Additionally, 40 public works vehicles, along with other community agencies, are using the network. Public works crews can now access job site information while in the field, thereby eliminating trips back to headquarters and accelerating service response times.

MeshNetworks equipment doesn’t work with standard Wi-Fi, but instead uses QDMA (Quadrature Division Multiple Access) to get a full one-mile range. Motorola’s Mesh Networks technology was originally developed for the military battlefield and is self-forming and self-healing. Motorola says the technology is capable of delivering seamless broadband connections to vehicles moving at highways speeds.

Motorola’s unique Multi-Hopping capabilities turn each mesh-enabled radio into its own router/repeater. This allows users to hop through other users to reach network access points. Motorola’s Mesh Network products also offer fast and accurate tracking capabilities without the use of GPS satellites.

For the past decade, Buffalo (located 40 miles north of Minneapolis) relied on a text-only network for its mobile data communications. The city is using the mesh network to power public safety mission-critical applications, including in-field reporting, and access to the state’s criminal database from the officer’s patrol car.

Motorola will integrate components of MeshNetworks, including the MeshNetworks Positioning System and MeshConnex software suites, into future data products such as those in the recently allocated 4.9GHz FCC licensed band allocated to the public safety infrastructure. Each node is licensed to operate with a maximum Effective Radiated Power (ERP) of up 16W at 4.9 GHz. Currently, the Motorola-Mesh Networks products utilize the 2.4GHz band.


PacketHop, (above), is based on the TBRPF protocol, one of two Mobile Ad hoc NETworking (Manet) protocols specified by the Internet Engineering Task Force. AODV is the other. Ad hoc, On demand, Distance Vector, published by NIST, and used by LocusWorld, is a leading standard for wireless mesh networking.

MeshNetworks Adaptive Transmission Protocol tightly binds to the underlying radio platform. One problem with mesh, whether it’s used just for the backbone or whether data traffic gets routed through multiple end users, like in PacketHop & MeshNetworks, is there’s no standard (yet). That means you’ll have to stick with one mesh vendor.

Viasys is implementing MeshNetwork’s system in Medford, Oregon. Officials said the initial deployment will cost about $700,000, much of it covered by a $500,000 grant from the Federal Emergency Management Agency. The city is phasing out its cellular-based CDPD network and has coverage limitations with GPRS. Medford spans 22 square miles. Some 100 city workers initially used Medford’s mesh network. Meshnetwork’s MEA/QDMA technology has been successfully deployed in Portsmouth, England, Cocoa Beach, Florida and their home base in Maitland, Florida.

Companies like PacketHop, a spinoff of SRI, and MeshNetworks (Maitland, Fla.), have dominated mobile ad hoc networking by using specialized multi-hopping clients rather than standard WiFi cards. The modified WiFi clients also act as routers. They pass signals from nearby radios, hop-by-hop, through nearby radios until an internet connection is found. RoamAD and Firetide, SkyPilot also combine routers and access points.

Examples of commercial mesh networking gear for backhaul include BelAir Networks, Firetide, Strix and market leader Tropos Networks. They often use ordinary WiFi cards because the backbone mesh is handled separately. The mesh connection finds a backbone connection to the internet.

Mesh nodes, relaying block-to-block, often makes more sense than runing DSL lines to each node. City buildings often block signals from centralized towers, typical in WiMax distribution.

MobileMesh is an ad-hoc routing protocol from Mitre for community networks. PersonalTelco says it’s pretty easy to get running. Download the Linux or Windows software, for free.

Microsoft’s Mesh Networking Summit in Snoqualmie, Washington, June 23-24, 2004, had a ton of interesting papers and videos.

MIT’s Roofnet is an experimental multi-hop 802.11b mesh network. Roofnet consists of about 50 nodes in apartments in Cambridge, MA. Each node is in radio range of a subset of the other nodes, and can communicate with the rest of the nodes via multi-hop forwarding. A few of the nodes act as gateways to the wired Internet. The Click Modular Router Project with an Optimized Link State Routing protocol may do the trick.

Roofnet can now be powered by a pared down Pebble Linux, a click modular router, stripped madwifi and an image for the Metrix Kit or a LiveCD for standard PCs. Locustworld, also has a MeshAP hardware solution.

The Champaign-Urbana Community Wireless Network (CUWiN), announced that its free open source mesh networking software is now available for download. The purpose is to make community-wide wireless networking as cheap and easy as possible.

DailyWireless has more on Scaling City-wide Mesh,

Radio Downloading


EE Times reports that a portable, DAB-based, download-ready music player with an electronic program guide (EPG) is being developed in the U.K..

Radio stations in the U.K. are leading the charge to morph Digital Audio Broadcast (DAB) radios into pocket radios that integrate TiVo-like features such as pause, rewind and record along with an electronic program guide (EPG).

“We are uniquely positioned,” said Colin Crawford, vice president of the Pure Digital division at Imagination Technologies Ltd. (Kings Langley, England). The company’s BUG radio (left), already on the commercial market, comes with a Secure Digital card to store music downloads and a USB port to download new software such as EPGs.

Later this year, Imagination Technologies will release its Pocket DAB 2000 radio. Driven by Frontier Silicon’s Chorus chip, it is believed to be an EPG-ready system.

Not likely to be available in first-generation radios, however, is support for multiple digital rights management systems from the cellular, MP3 and PC worlds. The horsepower and memory required could be too costly in this price-sensitive sector, said Rutton Ruttonsha, vice president and general manager for personal entertainment at Philips Semiconductors.

The Washington Post reports that surveys show 11 percent of U.S. adults owned digital music players with at least 22 million players are in the hands of Americans over 18 years old. Apple’s iTunes Music Store has sold more than 250 million songs as individual downloads for about 99 cents apiece since its April 2003 launch.

Other companies are posting impressive growth, including RealNetworks Rhapsody, the reformed Napster, Yahoo’s MusicMatch and MusicNet, all of which offer unlimited “tethered” music downloads for about $10 a month, with a combined 1.5 million subscribers.

According to a 2004 report by JupiterResearch, both subscriptions and individual downloads will top $1.7 billion in 2009, or about 12 percent of consumer music spending.

  • EmPRINT (Electronic Media Print) brings together the familiar qualities of printed newspapers with the interactivity of the Web.

  • Fred Child (right) hosts the wonderfully written Performance Today on NPR. The script would be fun to read, it introduces the contents and enables searching. A few photos might add to the appeal. PT on a dongle.

  • Can you believe that the CBC’s innovative Radio 3 is going away!! Check out the archives. It was a breakthrough for the broadcast industry. Bring it back CBC!!! (INFO@cbcradio3.com).

Here’s some Oscar multimedia.