S-07S-07

Wireless Link Quality Measurements

Assigned to: Moritz Grauel, Mathias Naber

Advisor: Mathias Kurth

Expected Submission: December 2007

Problem Statement

Our work is related to wireless-network-communication (e.g. mesh-networks) and slightly touches radio-frequency-issues also (e.g. physical behaviour of radio-waves).

Entering the relatively new and neither wide-spread nor standardized 900MHz 802.11 WLAN, we will make use of the WLAN-device Ubiquiti SR9. We will evaluate those devices for the use in BerlinRoofNet and conduct some basic measurements. We are going to compare our results to those of the "well known" 802.11 devices operating in the ISM-band (2.4GHz and 5GHz).

Deliverables

Our plan is to develop a modular framework which allows easy measurement of wireless links independent from used hardware.

Prior Art

There was a lot of research about 2.4GHz and 5GHz WLANs which explored neary everything. It showed, the used frequency isn't ideal for the desired task.

At this moment, the new 900MHz is still not widespread and shows some great potential.

Key Ideas / Project Execution Plan

- paper-work

Project Log

- tried some different MadWifi-drivers - basic ping measurements (packet loss, round trip time, ...)