Bluetooth: Tutorial

1
Bluetooth Tutorial Simulation

• COE 543
• Louai Al-Awami
• Graduate Assistant
• Computer Engineering Department
• Tuesday, June 3 , 2003

2
Outline

• What is Bluetooth
• Brief History
• General Specifications
• Modes of Operation
• Device Discovery
• Network Operation
• Network Simulator (NS-2)
• Bluehoc

3
What is Bluetooth

• Open Standard for
• Low Power
• Low Cost
• Short Range (Pico-cellular)
• Ad-Hoc
• Voice Data
• Radio Technology

4
What is Bluetooth
5
History

• -Initiated by Ericsson in 1994
• SIG formed in 1998
• (Ericsson, Intel, IBM, Toshiba and Nokia )
• Now 2000 members

6
General Specifications
Band 2.4 GHz (ISM)
Multiple Access strategy FHSS (79 Freq. Hops)
Clock 3.2 kHz
Duplexing TDD
Range 10cm,10m, 100m (NLOS)
Data rate 780 kbps
Acceptance Worldwide
Applications Cable Replacement WLAN- AP
7
Piconets Vs. Scatternet
Scatternet
Piconet
8
Modes of Operation
Objective power conservation and capacity
expandability
Active Always listens to packets
Sniff listens to packets within certain period and sleeps the rest of the time
Hold Stops listening until period expires
Park Keeps synch. with master on periodic basis, but not active
Standby No participating in any connection
9
Device Discovery
Standby Doing nothing
Inquiry Searching
Paging Request for connection
Connected Active connection
10
Inquiry Paging
11
Connection
ACL
ACL
12
Bluetooth Protocol Stack
13
Network Simulator-2 (NS-2)

• What is NS-2?
• Open Source research oriented simulator
• TCP- IP- UDP FTP,
• Where To Get NS-2?
• http//www.isi.edu/nsnam/ns (Free)
• What is NS-2 Target Systems?
• Unix, Linux , Solaris
• Window (Cygwin)

14
Network Simulator-2 (NS-2)

• Components of NS-2

NS The core of NS (C\C)
TCL Tools Command Language
OTCL Object-Oriented TCL
TCLCL links C\C OTCL
NAM Network Animator
Xgraph Generates Statistics
15
Network Simulator-2 (NS-2)

• File Structure

Define Procedures
Define nodes (type)
Define Links (Data Rate, Delay)
Define Agents (Protocols)
Define Simulation Scenario
http//nile.wpi.edu/NS/
16
BlueHoc

• Bluetooth Extension to NS-2
• includes
• Bluetooth Radio
• Bluetooth Baseband
• Link Manager Protocol (LMP)
• Logical Link Control and Adaptation Protocol
  (L2CAP)
• - Scatternet is implemented in BlueScat0.6.

17
Simulation
18
Useful Links
http//www.bluetooth.com http//www.isi.edu/nsnam
/ns http//nile.wpi.edu/NS/ http//www-124.ibm.c
om/developerworks/projects/bluehoc