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| Wifi Gear with 12 Mile Range |
| Thursday, March 15, 2007 |
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 "New wireless networking gear lets users log on to their service provider from 12 miles away. But the service may mean bad news for 3G, and it is here today Communications equipment maker Proxim became the latest company to sell high-powered Wi-Fi networks that travel long distances, essentially providing buyers with an "ISP in a box", the company's chief executive, Jonathan Zakin, said last week. These versions of wireless networks using the Wi-Fi, or 802.11b, standard create a wireless zone of up to 12 miles long, far beyond the usual 300-foot-radius range that Wi-Fi typically achieves, Zakin said.
Overkill for use inside a home, where most Wi-Fi networks are currently found, the long-range Wi-Fi gear from Proxim and others is meant for small Web service providers. It lets them beam long-range signals outside, particularly to sell broadband access in rural areas where DSL (digital subscriber lines) or cable broadband service haven't reached, Zakin said."..."The new technology is a further boost to the long-standing 802.11b standard, but it may come at the expense of 3G, the set of standards that have been developed for sending and receiving broadband data such as live video and CD-quality audio from compact mobile phone handsets. Mobile phone network operators have found that rolling out 3G is a pricey proposition, with European operators alone having spent 1bn euros (about £640m) on 3G licences.
Proxim, which sells a third of the world's Wi-Fi equipment, is the largest company yet to enter the market selling long-range Wi-Fi equipment. Others with uber-Wi-Fi networks include cordless-phone maker Engenius and networking companies Linksys and D-Link. These companies said they've had success peddling the gear to Web providers that are even smaller than Proxim's customers.
A bigger fish than Proxim is around the corner: Chipmaker Intel is also interested in entering the market, according to Kurt Sehnert, Intel's mobile platform group manager. Intel will likely choose to partner with someone already making the equipment, rather than develop its own, he said.
The Santa Clara, California-based chipmaking giant, which recently announced a wireless strategy, is also readying a PC card modem, code-named Calexico. The card will contain the first Wi-Fi chips made by Intel and is expected to appear in notebook computers early next year.
Proxim's gear is already being used by likes of Mile High Online in Denver, Colorado and Prairie Inet in West Des Moines, Iowa. The companies send broadband access to homes and business in their hard-to-reach areas, Zakin said.
The Proxim product can achieve long distances because the company boosted the power inside its access points -- the radios that create the network. It also added additional antennas to the access points so signals could be beamed directly to a home, rather than creating a cloud of access.
Proxim's product, priced from about ,000 to ,000 (£1,280 to £3,840), will include all the equipment necessary to become a small-scale network provider. The price differs depending on the quality of equipment and add-ons that a buyer may want. Each kit can serve about 250 customers.
By pushing Wi-Fi networks for outdoor use, Proxim and others are joining a new and growing market.
A cellular technology called w-CDMA (wideband code division multiple access) sends broadband access to rural areas, including the entire island of Maui in the Hawaiian archipelago. This technology is being used as the European standard for 3G.
Usually, w-CDMA signals travel all over, bouncing off trees or buildings. The signals themselves can get so misdirected they actually interfere with each other as they find their way to a handset or cellular base station's antenna, said Jon Hambidge, senior director of marketing for IPWireless, one of the companies that uses the technology. But IPWireless recombines the signals to decrease the usual number of dropped calls or suddenly ended Web sessions, which result from the misdirected signals, Hambidge said.
Another outdoor wireless technology vying for the rural market of Wi-Fi wireless service is MMDS (Multipoint Microwave Distribution System). Sprint PCS is using the technology to deliver broadband access to homes in the Houston area on a trial basis. Unlike Wi-Fi, MMDS uses licensed spectrum; the two technologies also use different types of modems from one another. The Sprint PCS trial is generating some interest in the technology among other Internet service providers.
There is also proprietary equipment for the market. Wireless ISP Aerie Networks of Denver uses equipment to run a high-speed wireless Web network in some areas of the country. Its patented equipment consists of radio receivers mounted to utility poles that shower an area with Internet access."
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posted by Jack @ 5:57 PM  |
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| WiMAX Broadband Wireless Technology Access |
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What is WiMAX
WiMAX (World Interoperability for Microwave Access), based on the IEEE 802.16 standard, is expected to enable true broadband speeds over wireless networks at a cost point to enable mass market adoption. WiMAX is the only wireless standard today that has the ability to deliver true broadband speeds and help make the vision of pervasive connectivity a reality.
There are two main applications of WiMAX today: fixed WiMAX applications are point-to-multipoint enabling broadband access to homes and businesses, whereas mobile WiMAX offers the full mobility of cellular networks at true broadband speeds. Both fixed and mobile applications of WiMAX are engineered to help deliver ubiquitous, high-throughput broadband wireless services at a low cost.
Mobile WiMAX is based on OFDMA (Orthogonal Frequency Division Multiple Access) technology which has inherent advantages in throughput, latency, spectral efficiency, and advanced antennae support; ultimately enabling it to provide higher performance than today's wide area wireless technologies. Furthermore, many next generation 4G wireless technologies may evolve towards OFDMA and all IP-based networks as an ideal for delivering cost-effective wireless data services.
Intel is poised to deliver the key components needed for successful WiMAX networks. It delivered the fixed WiMAX solution, Intel® PRO/Wireless 5116 wireless modem, and is now shipping a fixed/mobile dual-mode solution, Intel® WiMAX Connection 2250. This highly cost-effective solution was designed to support both standards with an easy upgrade path from fixed to mobile and is expected to further accelerate the deployment of WiMAX networks.
Intel's WiMAX Vision
WiMAX is a key component of Intel's broadband wireless strategy to deliver innovative mobile platforms for broadband Internet connectivity anytime, anywhere.
There is a substantial unmet need for very high-speed wireless wide area Internet access to both fixed and mobile devices. WiMAX is an advanced technology solution, based on an open standard, designed to meet this need, and to do so in a low-cost, flexible way. WiMAX networks are optimized for high-speed data and should help spur innovation in services, content and new mobile devices.
Intel currently plans to integrate WiMAX and WiFi into its notebook platforms based on Intel® Centrino® Mobile Technologies. Pairing the two will help bring users the ultimate in high-speed mobile broadband. Intel believes that WiMAX, with its technical and economic advantages, should help enable mainstream adoption of personal broadband.
WiMAX represents a global connectivity opportunity in highly developed mobile market segments and developing countries where this technology may help provide affordable broadband services.
Intel envisions a world of pervasive connectivity for all – WiMAX can help deliver on that vision.
source : intel.com |
| posted by Jack @ 5:52 PM |
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| Cisco WiFi mobile phone |
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Leave your Cisco WiFi mobile phone at the door
It isn't the first, by a long chalk. Symbol is just one of several vendors to market WiFi phones, announcing its own two years ago, but the market has failed to ignite. Cisco claims that the 7920 - which looks like an early 90s GSM handset, only uglier - has two hour talktime and twenty four hours of standby time.
The savings are obvious: while in your office, you don't need to pay expensive landline or cellphone fees. Assuming your Internet connection is up to the job. Cisco says QoS is guaranteed with the 7920 - the mobile counterpart to its 7620 VoIP handset - but we'd like to like to hear what it sounds like with a saturated T1 serving an office of say 500 users, all talking simultaneously, with a BoFH downloading a set of Debian ISO images.
The drawbacks are equally obvious: you have to leave your phone at the door.
And the spectrum efficiencies and manufacturing economies of scale of the 2.5G and 3G digital technologies mean that the traditional mobile phone will never go away. Not for all the wishful thinking in the world.
Ericsson this week announced a dual-mode chipset for the Chinese market that combines CDMA2000 with 802.11, a much more promising combination. This combination of 3G plus WiFi has the best of both worlds: you don't pay exorbitant rates for data when you're in range of a friendly 802.11 base station, and you don't need to carry two (or three) phones.
The downside is cost: WiFi chipsets are eight to ten times more expensive than 2G voice chipsets.
But don't forget the fight taking place over the "last yard". This is an area both WiFi advocates and 3G evangelists both want to ignore. Thanks to Bluetooth, my phone can piggyback onto my DSL connection so I can use it to surf the web with Opera at high speed, bypassing the 4MB cap AT&T Wireless places on my phone's GPRS data usage. (It's a financial cap rather than physical limitation: once you go over the monthly fee, you pay a hefty amount for the extra bytes).
However, the vociferous (and well-funded) spectrum deregulation lobby in these United States is talking such nonsense, we must address this issue in more depth. Soon, m'dears, but not today. ®
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| posted by Jack @ 5:42 PM |
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| Linksys Wireless-N Family |
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WRT330N includes Network Optimization for Console and PC Gaming
LAS VEGAS – January 08, 2007 – From the 2007 International Consumer Electronics Show, Linksys®, a Division of Cisco Systems, Inc., and the recognized leading global manufacturer of voice, wireless, and networking hardware for home, Small Office/Home Office (SOHO) and small business user, today announced the newest addition to its family of wireless-N products, the Wireless-N Gigabit Gaming Router (WRT330N).
Designed as a high performance gaming router for home networks, the WRT330N features Wireless-N technology that is designed to offer up to four times the range and twelve times the throughput speed of Wireless-G.* It includes four Gigabit Ethernet LAN ports, one Gigabit WAN port and an industrial design tailored specifically to the gamer audience. An optimized Quality of Service implementation within the WRT330N examines network traffic based on customizable settings and gives gaming packets the highest priority.
The WRT330N supports PC and game consoles, online games-on-demand services, multi-player online role-playing game servers, and head-to-head multiplayer games. Its network optimization also makes the WRT330N an ideal router for other latency-sensitive applications such as Voice over IP and Internet cameras.
“Our WRT330N is the first wireless-N product that Linksys has designed to address the needs of a specific group of consumers,” said Mani Dhillon, director of product marketing, consumer business organization, Linksys. “When you couple the throughput levels possible using Wireless-N with the network optimization done within this product, gamers can now be comfortable with wireless technology.”
Since the introduction of its first Wireless Game Adapter in 2003, Linksys has established itself as the worldwide leader in networking solutions for the market with over 500,00 products gaming-specific products sold. Other products designed specifically for gamers currently available from Linksys include the Wireless-G Game Adapter (WGA54G), the Wireless-A/G Gaming Adapter (WGA54AG), and the Network Optimizer for Gaming and VoIP (OGV200).
Security Wireless transmissions made using the WRT330N can be encoded with industrial-strength encryption using WPA2, WPA, or WEP to help protect data and privacy. It can serve as a DHCP server, supports VPN pass-through, and has a powerful SPI firewall to help protect against intruders and most known Internet attacks. Enabling these security features is easy with the Linksys Web browser-based configuration utility.
Pricing and Availability Available now through Linksys e-commerce retailers, retail stores, direct response, and VAR partners retail stores, the WRT330N has an estimated street price of $199.99.
About Linksys Founded in 1988, Linksys, a Division of Cisco Systems Inc., (NASDAQ: CSCO) is the recognized global leader in voice, Wireless and Ethernet networking for consumer, SOHO and small business users. Linksys is dedicated to making networking easy and affordable for its customers, offering innovative, award-winning products that seamlessly integrate with a variety of devices and applications. Linksys provides award-winning product support to its customers. For more information, visit www.linksys.com. |
| posted by Jack @ 5:40 PM |
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| Nokia 6136 with Wi-Fi |
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ENJOY YOUR MOBILE WIFI FROM NOKIA
The Nokia 6136 was among the first Nokia mobile phones to offer UMA capabilities, to allow seamless handovers of voice and data connections between GSM cellular and WLAN networks. In other words, it combines the benefits of mobile and fixed landline through voice over WLAN.
The phone, a clamshell, quad-band GSM model with a 1.3 megapixel camera, will be out during the second quarter, and will initially be available on the Orange network. The phone is primarily targeted at corporate customers who can deploy the phone for use both as a cellphone for external use, and as a VoIP phone within company facilities.
“UMA technology truly brings simplicity in the usage of voice over IP,” says Peter Ropke, Nokia’s Senior Vice President of Mobile Phones R&D. “This pilot project is an important step forward in bringing functional UMA technology to the mass market. Both operators and consumers will be able to garner the benefits of this new technology.
Review By Zdnet
The 6136 could also encourage mobile operators to offer new services that require high-speed access. GSM only supports basic data services, because of its limited bandwidth, whereas Wi-Fi can theoretically support connections of speeds in excess of 50Mbps.
Review By CNET
The technology lets carriers add coverage, for example in remote areas, at low cost with Wi-Fi hot spots instead of having to build expensive base stations. It could also encourage customers to use mobile phones at home instead of having landline connections, if they have Wi-Fi at home. |
| posted by Jack @ 5:35 PM |
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| Wireless Internet MP3 Player |
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Sansa Sandisk
SanDisk, the second largest seller of MP3 players in the United States, introduced the new Sansa Connect WiFi Enabled mp3 player at today's CES show. The MP3 is WiFi enabled to allow consumers to enjoy music and recommend music from almost anywhere. Users can "un-tether" themselves from their PCs by using the MP3 player's wireless capabilities to download music and photos from wireless hot spots.
The Sansa Connect WiFi MP3 player allows you to contact to a wide range of music through subscription services and streaming internet radio, without having to connect to a PC. It is specially designed to work with premium internet services, and can recommend music and photos with the click of a button and a live internet connection.
The Sansa Connect player is works seamlessly with popular music formats, including MP3 and Windows Media Audio (WMA) in both unprotected and protected files. The device also uses an open digital rights management system that allows users to purchase songs or access subscription download services. It will support Microsoft PlaysForSure subscription music and is designed to work with Microsoft Vista when it ships. |
| posted by Jack @ 5:21 PM |
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| Increasing DWL-2100AP Power and Frequency Range |
| Friday, March 9, 2007 |
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How to increase DWL-2100AP Power and Frequency Range This web site is hosted FREE by Servin Mervin With thanks to Daniel, who recently held my hand through the process of making it all work, I recently discovered that the D-link DWL 2100AP wireless access point is a far more worthey piece of equipment for wireless networking than I previously thought. Here are my thoughts on the DWL 2100 to date - they are still valid for standard units, but the potential for modifying the DWL 2100AP to transmit higher power and to operate on an extend frequency range by hacking it just a little bit is fantastic. The DWL-2100AP is quite capable of transmitting up to almost half a watt, and with it's internal frequency limitations turned off, will operate on an extra 13 channels!! This page is intended to document clearly how to get the most out of your DWL-2100AP for community wireless use, and I would like to thank Daniel, and the makers of http://www.wavedale.net/ Take a look at their web site, which is written in german, for a more technically based discussion of what is outlined below. Depending where you are in the world, these modifications may be illegal as increased power output or extended frequency coverage may go beyond the laws that cover your use of wireless equipment. In testing I used a dummy load, and I would recommed the same for others if you are unsure whether you are going to be operating outside regulatory limitations. Better to be sure than sorry. To increase your DWL-2100AP's power 1. Download THIS FIRMWARE
2. Upgrade your access point with the firmware using it's GUI TOOLS>FIRMWARE>UPDATE FILE
3. Reset the unit
4. Via the unit's telnet interface, issue the command "set overridetxpower xx" where "xx" is your desired power output in Dbm
5. Adequately cool the unit To Extend your DWL-2100AP's Frequency Range 1. If you haven't already, carry out steps 1 to 3 above.
2. Via the unit's telnet interface, issue the command " set regularydomain none " to disable the unit's frequency restrictions
3. Select your desired operating frequency by issuing the following command " set frequency xxxx " where "xxxx" is the frequency in MHz, selected from
the following table. The frequencies on the left are the new frequencies, the ones on the right are the standard frequencies. You must use the telnet interface to
enter the desired frequencies. 2312 | 2412 | | 2317 | 2417 | 2322 | 2422 | 2327 | 2427 | 2332 | 2432 | 2337 | 2437 | 2342 | 2442 | 2347 | 2447 | 2352 | 2452 | 2357 | 2457 | 2362 | 2462 | 2367 | 2467 | 2372 | 2472 |
Telnet For those not familiar with the telnet interface, it is a text based interface that is used by many peripherals that allows you to view and change equipment settings, often (as is the case here) providing more functionality than the web based graphical interface. To telnet to a DWL-2100, use the following steps. 1. Open the MS DOS prompt START>RUN>CMD>OK
2. Issue the command "telnet xxx.xxx.xxx.xxx" where "xxx.xxx.xxx.xxx" is the ip address of the unit. DWL-2100's have a default ip address of 192.168.1.50, so "telnet 192.168.1.50"
3. You are then requested to log in to the DWL-2100 using your username and password. The defaults are "admin" and no password
4. You may now issue commands to the box. To exit type "quit" Following is a list of telnet commands for the DWL-2100AP Cooling If you turn your DWL-2100's power up significantly, you are going to need to provide extra cooling for it. If you don't, as it heats, it's performance will reduce significantly, negating any positive gained from increasing the power, and with excessive heating comes the potential of damaging the unit. You will have to manage heat by adding a heatsink with a fan to the PA section of the unit, and adjusting power output to levels that your heatsink can handle. A CPU heatsink and fan placed over the PA assembley provided adequate results. Source : http://www.mervin.net.au/wireless/template/index.php |
| posted by Jack @ 6:31 AM |
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| Intel® Wireless WiFi Link 4965AGN |
| Sunday, February 18, 2007 |
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Intel Release new product
The Intel® Wireless WiFi Link 4965AGN product is an embedded 802.11a/b/g/Draft N¹ PCIe* Mini Card network adapter card that operates in both the 2.4GHz and 5.0GHz spectrum, delivering high throughput and a host of features that enhance today's mobile lifestyle.
Deploying WLAN technology in your home and business increases productivity, efficiency and flexibility by enabling faster decision making, reducing down-time, and enhancing employee satisfaction. For more information visit our WLAN ROI and WLAN Deployment web pages.
| Quad-Mode Solution for maximum flexibility Intel® Wireless WiFi Link 4965AGN provides deployment flexibility and connectivity convenience by offering a quad mode (supporting 802.11a/b/g/Draft-N) product, which is capable of connecting to new "Connect with Centrino" wireless N Access Points / Routers, but can also connect to any of the legacy Wi-Fi standards, 802.11a, b or g. | | | | Up to 5X faster¹ Data rates up to 300Mbps offer major improvement over today's 802.11a/g products that deliver 54Mbps. This helps overcome network capacity issues, allowing increased simultaneous network activity for large file transfers, streaming HD video, multi-player gaming, VoIP and more. | | Up to 2X greater range² MIMO, diversity and three antennae support enables better wireless reception for greater bandwidth at farther distances. Reduces the number of "dead zones", dropped data packets, network re-connects and dramatically improves connectivity throughout the home. | | Longer battery life³ Optimized power modes (sleep states) reduce power consumption during periods of inactivity. Reduced WLAN power consumption can help deliver longer platform battery life for greater utility, enjoyment, and convenience.
source : http://www.intel.com/performance/mobile/index.htm
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| posted by Jack @ 2:28 PM |
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| Best Article |
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| Favourite Links |
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| Wifi Card Modification |
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| Wifi Antenna Modification |
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| Making Wifi Antenna |
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| Wifi Antenna Based Type |
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