Bluetooth

Instructor: Dr. Saed TARAPIAH

Communication Engineering Department

Fall 2012

An-Najah National University

Bluetooth 802.15.x

1

A cable replacement technology.

Up to 3Mb/s (data rate)

Range 10+ meters

Single ship technology Low cost

Low power

Bluetooth

2

Why not using WLAN? Cost Power

Why not using irDA? LOS (Line Of Sight) Short distance range

(1m)

The Bluetooth Idea

3

IEEE 802.15 working group

4

Basic Characteristics

5

Design consideration of Bluetooth. High bandwidth

Conserve battery power (low power consumption)

Cost < 10$ (low cost)

Robust system (radio interference)

Unlicensed Radio Spectrum (USA)

6

Bluetooth Radio Link

7

Network Architecture

8

An Example

9

Application Scenarios

10

Bluetooth specification

11

Bluetooth Radio

Spread Spectrum

12

Radio channel

13

Frequency Hopping (FH)

14

Both sender and receiver know the sequence of frequencies

Piconet Synchronization

15

Piconet Synchronization

16

Adaptive frequency hopping (AFH) Bluetooth 1.1

17

Bluetooth Physical Links

18

Bluetooth Formation

19

Bluetooth Formation

20

Addressing

21

Physical channel

22

Piconet channel

23

Channel access

24

Multi-slot packets

25

Physical links types

26

SCO

27

SCO

28

eSCO (Bluetooth V1.1)

29

ACL

30

ACL

31

Packet types

32

Packet format (basic rate)

33

Packet format (basic rate)

34

Packet format (basic rate)

35

Access code

36

Header

37

Control packet

38

HV packet

39

HV packet

40

EV packets (Bluetooth v1.1)

41

EV packets (Bluetooth v1.1)

42

DH and DM packets

43

2-DH and 3-DH packets (Bluetooth v2.0)

44

Rate calculation DM/H1

45

Rate calculation DM/H3

46

Rate calculation 3-DH5

47

Mixed-link example

48

Inquiry

49

Inquiry procedure

50

Inquiry timing

51