Althos - Simplifying Knowledge

Introduction to
Bluetooth Book

Introduction to Bluetooth Book

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Bluetooth Piconet Diagram
Up to 8 active Bluetooth devices can form or become part of temporary small networks Piconets. Bluetooth allows wireless data connections within the Piconet to be dynamically added and removed between nearby devices. Because the Bluetooth system hops over 79 channels, the probability of interfering (overlapping) with another Bluetooth system is less than 1.5%. This allows several Bluetooth Piconets to operate in the same area at the same time with minimal interference.

Bluetooth communication always designates one of the Bluetooth devices as a main controlling unit - master unit. Other devices that follow the master unit are slave units. This allows the Bluetooth system to be non-contention based (no collisions). This means that after a Bluetooth device has been added to the temporary network (the Piconet), each device is assigned a specific time period to transmit and they do not collide or overlap with other units operating within the same Piconet.

Piconets can be setup to interact with other Piconets to form larger networks called Scatternets. Scatternets allow the master in one Piconet to operate as a slave in another Piconet. While this allows Bluetooth devices in one Piconet to communicate with devices in another Piconet (cross-Piconet communication), the use of Scatternets requires synchronization (and sharing of data transmission Bandwidth) making them less efficient.

 

UMTS LTE Book

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Introduction to Bluetooth Book

This book explains how Bluetooth devices can locate, authenticate, discover the capabilities, and setup connections with other Bluetooth devices. Radio packet structures, modulation types, and protocols are described and explained along with Bluetooth security pairing (authentication) and privacy (encryption) processes.

$19.99 Printed, $16.99 eBook