May 2024
Intermediate to advanced
309 pages
13h 33m
English
Content preview from Data Communications and Computer Networks by Pearson
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176 Data Communications and Computer Networks
Radio Layer
This is the lowest layer in the Bluetooth protocol stack and is similar to a physical layer of transmission
control protocol/Internet protocol (TCP/IP) model. The Bluetooth devices present in this layer have low
power and a range of 10 m. This layer uses an ISM band of 2.4 GHz that is divided into 79 channels, each
of 1 MHz. To avoid interference from other networks, the Bluetooth applies frequency-hopping spread
spectrum (FHSS) technique. Here, a packet is divided into different parts and each part is transmitted
at a different frequency. The bits are converted to signal using a variant ...
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