Fig. 2
From: Block-sparsity-based localization in wireless sensor networks
![Fig. 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13638-015-0410-6/MediaObjects/13638_2015_410_Fig2_HTML.gif)
Illustration of training phase (left) and runtime phase (right): in the training phase, each RP transmits T times to the BSs, which in turn send the data to the central unit that collects the signature map; in the runtime phase, a device is placed in cell and transmits to the BSs, which forward the information to the central unit, which tries to localize the device using the database