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Welcome to CRAWDAD

CRAWDAD is the Community Resource for Archiving Wireless Data At Dartmouth, a wireless network data resource for the research community. This archive has the capacity to store wireless trace data from many contributing locations, and staff to develop better tools for collecting, anonymizing, and analyzing the data. We work with community leaders to ensure that the archive meets the needs of the research community.

CRAWDAD is grateful to its current and past sponsors.


Latest News

new CRAWDAD dataset - ISM channel gain measurements - July 07, 2015

A new dataset has been added to CRAWDAD.

Time- and frequency-variant 2.4 GHz ISM band channel gain

Contributed by Dimitri Block, Niels Hendrik Fliedner, Daniel Toews,
Uwe Meier.

The time- and frequency-variant channel gain is measured in the
presence of an industrial cyclic moving robot arm obstacle for four
coexisting wireless nodes for the whole license-free 2.4-GHz-ISM band
with a time- and frequency-resolution of 110 microsseconds and 1 MHz,
respectively. Results for two links are given.


two new CRAWDAD datasets - HTTP measurements over 802.11, 3G and LTE - June 19, 2015

Two new datasets have been added to CRAWDAD.

Measurements of HTTP requests over 802.11 in dense wireless classrooms


Measurements on real HTTP throughput via several 3G/LTE providers in

These datasets were contributed by Marat Zhanikeev. Thank you for your


new CRAWDAD dataset - 802.15.4 packet delivery traces - April 01, 2015

A new dataset has been added to CRAWDAD.

Packet delivery performance (packet loss, delay, throughput, energy
consumption) over a 802.15.4 link under vairous stack parameter
configurations for more than 6 months.

Contributed by Songwei Fu, Yan Zhang.

The data set includes measurements of the data delivery performance of
a WSN link in indoor scenario, where 4 major performance metrics,
namely energy, throughput, delay and loss, were measured over 6 months
under around 50 thousand parameter configurations of 7 key stack
parameters. The meta-data of transmission of nearly 200 million
packets are included in the dataset.

The dataset is used for a forthcoming ICDCS paper entitled "Experiment
Study for Multi-layer Parameter Configuration of WSN Links".