ECCO: Data Centric Asynchronous Communication

This book describes data centric networking indistributed systems, which relies on contentaddressing instead of host addressing, thus providingnetwork independence for applications. Recentprogress in wireless sensor networks requires such adata-centric approach, where sensors are usedto gather high volumes of different data types tofeed as contexts to a wide range of applications.Publish/subscribe asynchronous group communicationrealises the vision of data-centric networkingthat is particularly important for networkssupporting mobile clients over heterogeneous wirelessnetworks. In such networks, client applicationsprefer to receive specific data, which requiresselective data dissemination. Underlying mechanismssuch as asynchronous message passing, distributedmessage filtering and query/subscription managementare essential.The book demonstrates solutions for challengingtopics ranging from event and query modelling usinghypercube, publish/subscribe by context adaptivecontrolled flooding, to event correlationsemantics, providing the design aid for distributedubiquitous computing systems over heterogeneousnetworks.