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WIBREE Technology with Bluetooth

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Abstract

The number of computing and telecommunications devices
is increasing and consequently the focus on how to connect
them to each other. The usual solution is to connect the
devices with a cable or sometimes using infrared light to
make file transfer and synchronization possible. The
infrared solution eliminates the cable but requires line of
sight.
To solve these problems a new technology, Wibree radio
technology complements other local connectivity
technologies, consuming only a fraction of the power
compared to other such radio technologies, enabling
smaller and less costly implementations and being easy to
integrate with Bluetooth solutions to connect a wide range
of computing and telecommunications devices easily and
simply without the need for connecting cables.
Furthermore it can also be used to enable communication
between several units, such as small radio LANs. This
results in a multitude of possible future user scenarios.
This article focuses on why this technology has got a large
attention although it is in development, pro’s and con’s
with respect to other technologies and lot’s more.

INTRODUCTION

Basics for choosing a Short Range Wireless Technology:
Wireless has already transformed the things we carry and the
way we work in the wider area, most notably with our eager
acceptance of the mobile phone, both as an extension of our
personal communication and also as an object of desire. The
question is which wireless technologies will appear in the
plethora of electronics devices we currently buy. There is no
easy answer – despite the claims that their marketing machines
may make no one wireless technology is the universal panacea
– each has its specific niche within the brave new wireless
world. Most have specific areas of excellence and many
overlap.

The Wireless Zoo

Apart from the well known Bluetooth format, which
operates at a distance of up to 10 m (and the less common
Bluetooth Class 1, which can broadcast up to 100 m) and can
transmit up to 3.0 Mb/s, there are currently a host of other
wireless technologies more planned for the next few years.
The following is a list of some of the main technologies.

Wi-Fi

Initially conceived in the 1990's, this wireless protocol
was developed for wireless local area networks (LANs) and is
used to connect computers, mobile phones, VoIP (Voice over
Internet Protocol) phones, game consoles, and even TVs and
cameras. The range of Wi-Fi is also considerable and can
exceed 100 m in some outdoor conditions. One of the main
problems with Wi-Fi is its high power consumption, which is
the result of the relatively long range and high data transfer
rate of the technology.

Where Wibree came from:

In 2001 two industry groups put forward proposals for the
form of this radio. Nokia headed one of the groups and
proposed a development that was handset centric. A major
tenet of their design was that ―it can be deployed with minor
effort into devices already having Bluetooth, e.g. cell phones‖
with the added requirement that a ―common RF section with
Bluetooth must be possible‖. Their vision was also broader
that that of the competing camp in that it envisaged a world of
a trillion wireless, web connected devices. A key slide shows
millions of connected laptops, billions of mobile phones and
trillions of what could be interpreted as Wibree enabled
devices.

Wibree host & profile specifications

Wibree is adopting the principle of profiles to define its
most common application areas. In its initial release, these
cover the watch, sensors and Human Interface Devices (HID).
The receiving device doesn‘t need to be static for this
scenario. A feature of the short time required to complete a
data transfer means this profile can be used with moving
receivers. If we consider a transmitter with a 100 meter range,
a vehicle moving at 100 km/hr will be within range of the
transmitter for around 4 seconds – more than enough time to
pick up traffic information from a beacon. An increasing
number of vehicles already have a driver display that is
Bluetooth enabled – it‘s called their satellite navigation
system. There‘s only a minimal incremental cost to Wibree
enable it to receive additional messages from roadside
transmitters. It makes Wibree a very interesting proposition to
those developing ITS (Integrated Traffic System) applications.