Hybrid monitoring of wireless sensor networks

The survey [2] concludes stating that there are opportunities for hybrid and more complete methods, whereby failures detection is tackled on all aspects. Our proposal can access the insights of nodes at a very low cost, while using a non-intrusive passive network to analyze not only the network operation, but also its relation with the environment. The design of our DSN allows us to use complementary technologies to exchange information. Even if there were no support network, the traces stored in nonvolatile memory of sniffers and monitors could be used to reconstruct the network operation.