ETH Zurich :
Computer Science :
Pervasive Computing :
Distributed Systems :
Technologies and standards in wireless communication
Recently there has been a growing interest in wireless communication in
small devices. Although Infrared is already widely implemented in small
low-cost devices, there is rapid movement towards wireless communication in
the Giga Hertz spectrum, which allows for new concepts such as "hidden
The presentation will start by introducing various standards that are going
to play an important role in wireless communication. We will first consider
infrastructure networks. After explaining the general concepts, we will have
a look at the 802.11 standard (with its extensions to 802.11b and 802.11a)
and HIPERLAN2. These standards were mainly created for use as Wireless LANs.
Secondly, we will move on to ad hoc networks and take a closer look at
Bluetooth and the recent 802.15 standard for Wireless Personal Area Networks
(WPAN). We will also see new wireless applications that are being
implemented using Bluetooth.
In the third part of the presentation, we will focus on small devices. We
will consider some of the issues related to the use of small devices in
wireless networks, such as battery life, costs or scalability. We will
reflect on these issues and evaluate how well the different standards are
suited for the use in small devices and mobile computing.
schriftliche Ausarbeitung: [.pdf]