Safe reparametrization of component-based WSNs

Abstract

Modern Wireless Sensor Networks are moving from singe-purpose custom built solutions towards multi-purpose application hosting platforms. These platforms support multiple concurrent applications managed by multiple actors. Reconfigurable component-models are a viable solution for supporting these scenarios by reducing management and development overhead while promoting software reuse. However, implicit parameter dependencies spanning component compositions make reconfiguration complex and error-prone. This paper proposes composition-safe reparametrization of components. This is accomplished by offering language annotations that allow component developers to make dependencies explicit and network protocols to resolve and enforce parameter constraints. Our approach greatly simplifies reparametrization while imposing minimal runtime overhead.