A New Model for Updating Software in Wireless Sensor Networks.

The article addresses the need for over-the-air support for software updates in Wireless Sensor Networks (WSN). It consolidates by determining an integrated set of necessary WSN software update criteria and presents a novel model for WSN software update systems. WSNs are expected to be deployed for a long period of time and the nodes are likely to need software updates during their lifetime, both for bug fixes and to support new requirements. However, in many cases the nodes will be inaccessible or too numerous to be physically accessed which needs a new software update model. It describes the problems associated with the software update problem in WSNs and presents the derived criteria for software updating.