wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

49
Bluetooth
Stefan Mahlknecht
Vienna University
of Technology
Milos Manic
University of Idaho
Idaho Falls
Sajjad Ahmad
Madani
COMSATS Institute of
Information Technology
49.1 Introduction.....................................................................................49-1
History and Technical Background. •. Bluetooth Specifications
49.2 Bluetooth Core Architecture Blocks............................................49-3
Channel Manager. •. L2CAP Resource Manager. •. Device
Manager. •. Link Manager. •. Baseband Resource Manager. •. Link
Controller. •. Radio Frequency. •. Bluetooth Networks. •. Bluetooth
Security
49.3 Bluetooth Protocol Stack................................................................49-6
49.4 Bluetooth Profiles............................................................................49-7
Four Bluetooth General Profiles. •. Bluetooth General Profiles
49.5 Competitive Technologies.............................................................49-9
49.6 Future of the Bluetooth Technology: Challenges..................... 49-10
References..................................................................................................49-11
49.1 Introduction
Bluetooth is the widely spread short-range wireless technology that has replaced existing cables in many
fixed and mobile application scenarios with high measures of security and an enhanced data rate. Its
key features are robustness, low power, small size, and low cost. Bluetooth technology is widely accepted
now as it can be found in many cell phones and computer peripherals that can connect with any other
such device residing in proximity.
Bluetooth specifications were developed by the Bluetooth Special Interest Group (SIG). The Bluetooth
SIG consists of companies in the areas of telecommunication, computing, networking, and consumer
electronics, which try to define new application profiles and enhancements to the communication protocols
as new demands arise.
Interoperability between devices supporting the same, so-called Bluetooth profile, is guaranteed by
a certification process of manufacturer devices functionality.
The basic strength of Bluetooth technology is to handle both voice and data transmissions, simultaneously.
This helps the user to carry out various personal activities innovatively. For example, the user
can be hands-free when listening to voice calls, and at the same time print, share data among peers,
synchronize the PDA, the laptop, the camera, and other Bluetooth-enabled devices.
49.1.1 History and Technical Background
In 1994, Ericsson Mobile Communications was the first company to realize the need to cut off the
cable between cellular phones and their accessories. The name Bluetooth comes from Harald Blåtand,
the King of Denmark (and later, the King of Norway), known for trying to unite and Christianize his
dominions. A Scandinavian name was chosen because of Ericsson’s large contribution to the development
of Bluetooth.
49-1
© 2011 by Taylor and Francis Group, LLC