Performance of multisink geographic routing with different distance metrics

In this work we propose a data dissemination protocol for multisink wireless sensor networks, based on a colored area concept related to the nodes coverage area and on geographic multiple sinks locations. We investigate how the inter-nodes distance definition could affect the protocol performance; in particular we introduce two distance metrics (the classic Euclidean and a metric that takes into account the nodes radio signal coverage) and we show how these ones can foresee different number of transmissions required to perform a task; this could results in different routing path selections and different energy consumption expectations. We show how to obtain an energy gain around the 7% thanks to the radio coverage based metric with respect to the classic Euclidean one.