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Introduction to Wireless

Wi-Fi, Bluetooth Low Energy and ZigBee
by

gordon lu

on 30 December 2014

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Transcript of Introduction to Wireless

Wi-Fi networks use radio technologies based on the
IEEE 802.11

to provide secure, reliable, fast wireless connectivity.
Wi-Fi networks operate in the unlicensed
2.4- and/or 5-GHz
radio bands.
Introduction to Wireless
A Better Connected World
That's Smart. That's Bluetooth.
ZigBee is a low-cost, low-power, wireless
mesh network
standard targeted at wide development of long battery life devices in
wireless control
and
monitoring
applications.
Wi-Fi (Wifi / WiFi), is a
local area wireless technology (also
WLAN
: wireless local area network )
that allows an electronic device to exchange data or connect to the internet.
Technology
Application
Wi-Fi
Bluetooth Low Energy
ZigBee

Gordon 2014/12/23

IEEE 802.11 Families
Medical devices and remote patient monitoring
Application
Consumer devices (tablets, e-books,
media players), web browsing,
Internet connectivity, and streaming
multimedia
Industrial and home automation,
remote monitoring, controlling, data-logging and diagnostics
Smart machines
Video conferencing
Security and surveillance
Market
Wi-Fi Alliance
IHS iSuppli
http://goo.gl/6nGFyE
If you do not catch any thing in the last hour, please keep two pictures in mind !
Bluetooth low energy

or

Bluetooth LE
, marketed as
Bluetooth Smart
, is a wireless personal area network(
WPAN
) technology aimed at novel applications in the healthcare, fitness, beacons, security, and home entertainment industries.

Technology
BLE radio frequencies
Bluetooth versions and device types
Application
Internet of Things
Sports and fitness
Assisted living
Toys
Entertainment devices
Mobile accessories
Market
Technology
Market
Zigbee/IEEE 802.15.4 Protocol Stack
Ultra-low peak, average and idle mode power consumption
Ability to run for years on standard coin-cell batteries
Low cost
Uses
2.4 GHz
radio frequencies.
Data rates is

1 Mbit/s
.
Bluetooth Smart is not backward-compatible with the previous, often called Classic Bluetooth.
Building and industrial automation
Smart wireless lighting control and LED bulbs
Home control and security
Medical and patient monitoring
Logistics and asset tracking
ZigBee builds on the physical layer and media access control defined in IEEE standard
802.15.4
for low-rate WPANs.
ZigBee operates in the industrial, scientific and medical (
ISM
) radio bands:

2.4 GHz
in most jurisdictions worldwide;
784 MHz in China
,
868 MHz in Europe
and
915 MHz in the USA and Australia
. Data rates vary from
20 kbit/s
(868 MHz band) to
250 kbit/s
(2.4 GHz band).
The ZigBee network layer natively supports both star and tree networks, and generic Mesh networking.
Zigbee networks
Sensor networks

ZigBee is accounting for almost
80%
of total
802.15.4-enabled device
shipments in 2018.
Full transcript