Instructions

Over the course of my research on interference in urban wireless sensor networks, I have collected gigabytes of data. If you would like access to these data --mentioned in publications or below-- please contact me.

Smart Condo interference traces

We deployed a four-by-four grid of EMSPCC11 nodes within the Smart Condo at the University of Alberta and recorded the received signal strength indicator (RSSI) values. Our nodes were configured with a base frequency of 904 MHz, the channels were spaced 199.9512 kHz apart, and each channel occupied a bandwidth of 101.5625 kHz. These settings allowed our nodes to listen on frequencies from 904 MHz to 928 MHz (within the ISM band) and 929 MHz to 954 MHz (outside the ISM band). For each of the 256 channels, we collected exactly 175,000 samples from each node for a duration of less than 35 s. Since we collected measurements from all sixteen nodes simultaneously, the whole collection process lasted roughly 2.5 h. The final CSV data file consumed 18.38 GB.

Sample data from one node operating on one channel:

Plotted data
"ts","port","alias","channel","noise"
0.094937,0,"0,0",68,189
0.094937,0,"0,0",68,181
0.094937,0,"0,0",68,177
0.094937,0,"0,0",68,186
0.094937,0,"0,0",68,178
0.094937,0,"0,0",68,182
0.094937,0,"0,0",68,188
0.095154,0,"0,0",68,177
0.095370,0,"0,0",68,180
0.095587,0,"0,0",68,186
0.095803,0,"0,0",68,183
0.096020,0,"0,0",68,182
0.096237,0,"0,0",68,182
...
33.709965,0,"0,0",68,192
33.710171,0,"0,0",68,180
33.710373,0,"0,0",68,181
	    

Reference:

N. M. Boers, I. Nikolaidis, and P. Gburzynski, “Patterns in the RSSI Traces from an Indoor Urban Environment.” In CAMAD 2010: Proceedings of 15th IEEE International Workshop on Computer Aided Modeling Analysis and Design of Communication Links and Networks. Coconut Creek, FL, 3-4 December 2010.

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