Bluetooth
A Comparison of Bluetooth and competing technologies
Presented by: Avinash Swami M.Tech(EECE)
Contents
Purpose and Specifications Communication Protocols Disadvantages and Advantages in certain scenarios Application comparison, consumer criteria, business analysts
Technologies
Bluetooth IrDA HomeRF
Purpose
Why Bluetooth?
The Bluetooth specification is a global technology that allows wireless communication and networking between PCs and other portable devices.
Why HomeRF?
HomeRF enables different consumer electronic devices to communicate with each other while providing users with a complete home network solution. Users will be able to dial in from a remote location and control any device.
Why IrDA?
IrDA is intended for point-to-point links between two devices for simple data transfers and file synchronization.
Technical Specifications
Transmission Technology Bluetooth & HomeRF: Radio Frequency IrDA: Infrared Light Beams
Spectrum Bluetooth & HomeRF: 2.4 to 2.485 GHz IrDA: Optical
Technical Specification (cont.)
Range
Bluetooth: 10 meters HomeRF: 50 meters IrDA: 1 meter
Data Rate Bluetooth: 1 MB HomeRF: 2 MB IrDA: 4MB
Technical Specification (cont.)
Maximum no. of devices
Bluetooth: Up to 8 devices per piconet HomeRF: Up to 127 devices per network IrDA: 2 devices
Optimal Use
Bluetooth: Connectivity of multiple devices HomeRF: Home Networking IrDA: Short Range, one-to-one data exchange
Communication Protocols
Provides what application are able to run.
Applications RFCOMM / SDP L2CAP
(Logical Link Control and Adaptation Protocol)
RFCOMM: Provides emulation of serial ports over the L2CAP.
SDP: Provides a means for applications to discover which services are available and to determine the characteristics of those available services
Provides connection-oriented and connectionless data services to upper layer protocols with protocol multiplexing capability, segmentation, and reassembly
Presented by: Avinash Swami M.Tech(EECE)
Contents
Purpose and Specifications Communication Protocols Disadvantages and Advantages in certain scenarios Application comparison, consumer criteria, business analysts
Technologies
Bluetooth IrDA HomeRF
Purpose
Why Bluetooth?
The Bluetooth specification is a global technology that allows wireless communication and networking between PCs and other portable devices.
Why HomeRF?
HomeRF enables different consumer electronic devices to communicate with each other while providing users with a complete home network solution. Users will be able to dial in from a remote location and control any device.
Why IrDA?
IrDA is intended for point-to-point links between two devices for simple data transfers and file synchronization.
Technical Specifications
Transmission Technology Bluetooth & HomeRF: Radio Frequency IrDA: Infrared Light Beams
Spectrum Bluetooth & HomeRF: 2.4 to 2.485 GHz IrDA: Optical
Technical Specification (cont.)
Range
Bluetooth: 10 meters HomeRF: 50 meters IrDA: 1 meter
Data Rate Bluetooth: 1 MB HomeRF: 2 MB IrDA: 4MB
Technical Specification (cont.)
Maximum no. of devices
Bluetooth: Up to 8 devices per piconet HomeRF: Up to 127 devices per network IrDA: 2 devices
Optimal Use
Bluetooth: Connectivity of multiple devices HomeRF: Home Networking IrDA: Short Range, one-to-one data exchange
Communication Protocols
Provides what application are able to run.
Applications RFCOMM / SDP L2CAP
(Logical Link Control and Adaptation Protocol)
RFCOMM: Provides emulation of serial ports over the L2CAP.
SDP: Provides a means for applications to discover which services are available and to determine the characteristics of those available services
Provides connection-oriented and connectionless data services to upper layer protocols with protocol multiplexing capability, segmentation, and reassembly