QoS-aware middleware for ubiquitous and heterogeneous environments

K. Nahrstedt, Dongyan Xu, D. Wichadakul, Baochun Li
2001 IEEE Communications Magazine  
Middleware systems have emerged in recent years to support applications in heterogeneous and ubiquitous computing environments. Specifically, future middleware platforms are expected to provide quality of service support, which is required by a new generation of QoS-sensitive applications such as media streaming and e-commerce. This article presents four key aspects of a QoS-aware middleware system: QoS specification to allow description of application behavior and QoS parameters; QoS
more » ... n and compilation to translate specified application behavior into candidate application configurations for different resource conditions; QoS setup to appropriately select and instantiate a particular configuration; and finally, QoS adaptation to adapt to runtime resource fluctuations. We also provide a comparison of existing QoS-aware middleware systems in these four aspects. QOS-AWARE MIDDLEWARE ARCHITECTURE Our QoS-aware middleware architecture favors applications modeled by a generic application component model. In this model we view a collection of interconnected application components
doi:10.1109/35.965372 fatcat:kskzrwqisrexhlp4xhrvwufhmu