30-11-2012, 06:35 PM
Bluetooth wireless technology
1Bluetooth wireless.doc (Size: 120 KB / Downloads: 35)
ABSTRACT
Devices are now interconnected to each other using wireless technologies such as Bluetooth, WiFi or Infrared. Unfortunately all these technologies has some limitations. The effective range of Bluetooth devices is approximately 32 feet(10 meters) which is very less. Direct line of sight is required between devices to communicate through infrared. WiFi may require heavy configurations. Out of these three, Bluetooth is very common nowadays. Most mobile devices are now Bluetooth enabled. Bluetooth is a standard for short range, low power, low cost wireless communication that uses radio technology. This cable-replacement technology is invented by Ericsson (a major cell phone manufacturer) in 1994. Embedded Bluetooth capability is becoming widespread in numerous types of devices nowadays. It is widespread because of four main reasons:
(i) it is a standard
(ii) the device is cheap
(iii) it is a low power consumption technology and,
(iv) its transceiver is physically small. It can thus be incorporated in any domestic or office electronic device. However, it shows severe limitations
in terms of communication range, most Bluetooth-enabled devices having only a 10m communication range.
There are two major solutions to increase the communication range of Bluetooth. Acccess point and repeaters. Access points provided by manufacturers such as Inventel or Belkin. Repeaters amplify the radio signal and retransmit it. Both solutions provide wider coverage than basic Bluetooth. However, none of them allows a seamless interconnection of Bluetooth devices. Furthermore, to cover a large area, a number of access points or repeaters must be deployed. This paper presents the UbiPAN network infrastructure, the goal of which is to overcome the limitation of small coverage area of bluetooth. It relies on the combination of the IP network, SIP and Bluetooth. This is a novel approach to seamlessly extend the communication range of Bluetooth enabled devices. This approach does not require any dedicated firmware to be deployed on the involved equipments.
1Bluetooth wireless.doc (Size: 120 KB / Downloads: 35)
ABSTRACT
Devices are now interconnected to each other using wireless technologies such as Bluetooth, WiFi or Infrared. Unfortunately all these technologies has some limitations. The effective range of Bluetooth devices is approximately 32 feet(10 meters) which is very less. Direct line of sight is required between devices to communicate through infrared. WiFi may require heavy configurations. Out of these three, Bluetooth is very common nowadays. Most mobile devices are now Bluetooth enabled. Bluetooth is a standard for short range, low power, low cost wireless communication that uses radio technology. This cable-replacement technology is invented by Ericsson (a major cell phone manufacturer) in 1994. Embedded Bluetooth capability is becoming widespread in numerous types of devices nowadays. It is widespread because of four main reasons:
(i) it is a standard
(ii) the device is cheap
(iii) it is a low power consumption technology and,
(iv) its transceiver is physically small. It can thus be incorporated in any domestic or office electronic device. However, it shows severe limitations
in terms of communication range, most Bluetooth-enabled devices having only a 10m communication range.
There are two major solutions to increase the communication range of Bluetooth. Acccess point and repeaters. Access points provided by manufacturers such as Inventel or Belkin. Repeaters amplify the radio signal and retransmit it. Both solutions provide wider coverage than basic Bluetooth. However, none of them allows a seamless interconnection of Bluetooth devices. Furthermore, to cover a large area, a number of access points or repeaters must be deployed. This paper presents the UbiPAN network infrastructure, the goal of which is to overcome the limitation of small coverage area of bluetooth. It relies on the combination of the IP network, SIP and Bluetooth. This is a novel approach to seamlessly extend the communication range of Bluetooth enabled devices. This approach does not require any dedicated firmware to be deployed on the involved equipments.