Communication Bluetooth Technology
Bluetooth has a lot to offer with an increasingly difficult market place. Bluetooth helps to bring with it the promise of freedom from the cables and simplicity in networking that has yet to be matched by LAN (Local Area Network).
In the key marketplace, of wireless and handheld devices, the closest competitor to Bluetooth is infrared. Infrared holds many key features, although the line of sight it provides does not go through walls or through obstacles like that of the Bluetooth technology.
Unlike infrared, Bluetooth is not a line of sight and it provides ranges of up to 100 meters. Bluetooth is also low power and low processing with an overhead protocol. What this means, is that it is ideal for integration into small battery powered devices. To put it short, the applications with Bluetooth are virtually endless.
Disadvantages, Bluetooth has several positive features and one would be extremely hard pressed to find downsides when given the current competition. The only real downsides are the data rate and security. Infrared can have data rates of up to 4 MBps, which provides very fast rates for data transfer, while Bluetooth only offers 1 MBps.
For this very reason, infrared has yet to be dispensed with completely and is considered by many to be the complimentary technology to that of Bluetooth. Infrared has inherent security due to its line of sight.
The greater range and radio frequency (RF) of Bluetooth make it much more open to interception and attack. For this reason, security is a very key aspect to the Bluetooth specification.
Although there are very few disadvantages, Bluetooth still remains the best for short range wireless technology. Those who have tried it love it, and they know for a fact that Bluetooth will be around for years to come.
b) Bluetooth Technical Operations Of Wireless Link Technology
Bluetooth is a high speed, low powered wireless link technology that is designed to connect phones or other portable equipment together with little to no work required by the user. Unlike infrared, Bluetooth does not require line of site positioning to work.
Current prototype circuits are contained on a board that is 0.9 cm square, with a much smaller circuit board being developed.
When one Bluetooth device comes in contact with another, they will automatically exchange addresses and details of capability. Then, they can establish a 1 MB link with security that they will use as required. The protocols involved with handle both data and voice, with a very flexible topography.
The technology achieves its goal by embedding tiny, non expensive short range tranceivers into the devices available today. The radio operates on the 2.45 GHz frequency band, and supports up to 721 KBps, along with three voice channels.
Each devices offers a unique 48 bit address from the IEEE 802 standard, with the connections being point to point or multipoint. The max range is 10 meters, although it can be extended to 100 meters by increasing the power. The devices are also protected from radio interference by changing their frequencies, also known as frequency hopping.
What is important, is the fact that Bluetooth devices will not drain battery life. The specification targets power consumption of the device, limiting the drain on the battery. The radio chip will consume only 0.3mA in stand by mode, which is less than 5% of the power that standard phones use.
Bluetooth will also guarantee security at the bit level. The authentification is controlled by the user via a 128 bit key. The radio signals can be coded with anything up to 128 bit. With the frequency hopping, Bluetooth is already very hard to listen into.
The baseband protocol is a combination of both circuit and packet switches. Slots can be reserved for synchronous packets as well. Each packet will be transmitted in a different hop frequency. Normally, a packet covers a single slot although it can be extended to cover up to five slots.
Bluetooth can also support data channels of up to three simultaneous voice channels. Therefore, it is possible to transfer the data while you talk at the same time. Each individual voice channel will support 64 KB.
From a technical standpoint, Bluetooth is very different indeed. It is the best wireless method in the world, surpassing even infrared. For communication on the go, Bluetooth is indeed very hard to compete with. James Murray is a successful writer and online gambling expert providing valuable tips and advice for those interested in gambling and online gambling strategies. His numerous articles found on the Internet ,provide useful and factual gambling information and insight. Some of his websites are http://www.casinospokerrooms.com, http://www.bingosbingos.com, http://www.top-sportsbook.ca
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