Wireless USB

Wireless USB is a short-range, high-bandwidth wireless radio communication protocol created by the Wireless USB Promoter Group. Wireless USB is sometimes abbreviated as "WUSB", although the USB Implementers Forum discourages this practice and instead prefers to call the technology "Certified Wireless USB" to differentiate it from competitors. Wireless USB is based on the WiMedia Alliance's Ultra-WideBand (UWB) common radio platform, which is capable of sending 480 Mbit/s at distances up to 3 meters and 110 Mbit/s at up to 10 meters. It was designed to operate in the 3.1 to 10.6 GHz frequency range, although local regulatory policies may restrict the legal operating range for any given country.

Uses

Wireless USB is used in game controllers, printers, scanners, digital cameras, MP3 players, hard disks and flash drives. Kensington released a Wireless USB universal docking station in August, 2008. It is also suitable for transferring parallel video streams, while utilizing the Wireless USB over Ultra-widebandWB bandwidth.

Life

Wireless USB life will depend on the usage and environmental conditions. Proper usage will make the usb life long lasting. Improper disconnectivity of the Wireless usb leads to degrade the performance. Mounting and Unmounting procedures are very important in these adapters.

Wireless USB vs. 60 GHz

Few issues differentiate the two technologies:

Line of Sight: at 60 GHz, radio communication is blocked by any intervening object, which implies the need for open line of sight. Wireless USB is based on the UWB platform, which operates in the 3.1 to 10.6 GHz frequency range, and therefore intervening bodies can be passed through with no line-of-sight limitation.

Mobility: the 60 GHz technology is appealing to the wireless video market because it is supposed to deliver multi-gigabit-speed wireless communications. In order to support such heavy demands, the underlying MAC layer should be able to process this huge amount of data. For these requirements, the 60 GHz-based solutions will need higher power consumption, and bigger chips, which are less suitable for mobile units or devices.

Ref : http://en.wikipedia.org/wiki/Wireless_USB

Wajan Bolic

Antenna Saffron, or e-goen Wajanbolic is a breakthrough in technology RT / RW-net. Antenna Wajanbolic e-goen to be a client that cheap in a RT / RW-net so that we can air with cheap Internet. Internet cheap does not mean to steal bandwidth and the Internet was free, like most people think. Internet becomes cheaper because the cost burden on the responsibility of busy-busy by many to use in a neighborhood in the RT / RW-net

Gunadi and e-goen Wajanbolic

Antenna e-goen Wajanbolic developed by Mr. Gunadi (Pak Gun) or more known e-goen. Gun Pak comes from alumni STEMBAYO Jogyakarta. The latest information, he worked in Indosat to be one that is responsible in Indosat Earth Station in Purwakarta. From 2005-early 2006, the figure of the dominant e-goen inspire the nation of Indonesia to develop antennas & antenna pan frying in Indonesia. Antenna skillet that came to be known as e-goen Wajanbolic become the mainstay for those who want to build RT / RW-net or cheap wireless Internet at his house with a capital of about Rp. 300-350000 alone.

Mr. Gun active on the mailing list subscriber indowli@yahoogroups.com indowli@yahoogroups.com and teach techniques to make low-cost antennas using a skillet, cans, pipes pralon. With very simple equipment we can build a wireless Internet connection which is far enough to reach more areas of 2-4 km.

Ref : http://opensource.telkomspeedy.com/wiki/index.php/Wajanbolic

Hotspot (Wi-Fi)

A hotspot is a site that offers Internet access over a wireless local area network through the use of a router connected to a link to an Internet service provider. Hotspots typically use Wi-Fi technology.
Hotspots may be found in coffee shops and various other public establishments throughout much of the developed world.


History
Public access wireless local area networks (LANs) were first proposed by Henrik Sjödin at the NetWorld+Interop conference in The Moscone Center in San Francisco in August 1993. Stewart did not use the term hotspot but referred to publicly accessible wireless LANs. Stewart went on to found the companies PLANCOM in 1994 (for Public LAN Communications, which became MobileStar and then the HotSpot unit of T-Mobile USA) and Wayport in 1996.
The term HotSpot may have first been advanced by Nokia about five years after Stewart first proposed the concept.[citation needed]
During the dot-com period in 2000, dozens of companies had the notion that Wi-Fi could become the payphone for broadband. The original notion was that users would pay for broadband access at hotspots.
Both paid and free hotspots continue to grow. Wireless networks that cover entire cities, such as municipal broadband have mushroomed. Wi-Fi hotspots can be found in remote RV / Campground Parks across the US.
Many business models have emerged for hotspots. The final structure of the hotspot marketplace will ultimately have to consider the intellectual property rights of the early movers; portfolios of more than 1,000 allowed and pending patent claims are held by some of these parties.

UsesThe public can use a laptop, Wi-Fi phone, or other suitable portable device to access the wireless connection (usually Wi-Fi) provided. Of the estimated 150 million laptops, 14 million PDAs, and other emerging Wi-Fi devices sold per year for the last few years, most include the Wi-Fi feature.
For venues that have broadband Internet access, offering wireless access is as simple as purchasing one access point (AP), in conjunction with a router and connecting the AP to the Internet connection. A single wireless router combining these functions may suffice.

Locations
Hotspots are often found at restaurants, train stations, airports, military bases, libraries, hotels, hospitals, coffee shops, bookstores, fuel stations, department stores, supermarkets, RV parks and campgrounds, public pay phones, and other public places. Many universities and schools have wireless networks in their campus.

Reference : http://en.wikipedia.org/wiki/Hotspot_(Wi-Fi)