Hello,
It is known that Bluetooth 3.0 and 4.0 provide theoretical data transfer speeds of up to 1 Mbit/s; However, in real life, this speed rate may vary in function of a multitude of factors such as the distance between the two devices, the hardware specifications and the use of other wireless technologies that share the same ISM Band ( 2.4 to 2.485 GHz ).
Is there any survey/study that discusses these points ?
Thank you
Dear Mehdi
The data rates in different versions of Bluetooth are: 1 Mbit/s, 3 Mbit/s, 24 Mbit/s, and 24 Mbit/s for versions 1.2, 2.0+EDR, 3.0+EDR, and 4.0 respectively.
When we say that the data rate is 1 Mbit/s, all it means is that the bit duration during transmission is 1 microsecond. And the actual application throughput will always be substantially lower than 1 Mbit/s because of various overheads involved. These overheads may include things like access codes, addresses, and CRC.
Time gaps between adjacent packets as well as interference with other systems operating in the ISM band (such as Wi-Fi, Zigbee etc.) will further reduce the actual throughput which the user gets.
I hope that will help.
Thanks...
M. Salim Beg
- Badges
- Science topic
- Similar topics
- Phytochemistry
- Extracts