A Unified Software Architecture to Enable Cross-Layer Design in the Future Internet

Abstract—While research on cross-layer network optimization has been progressing, useful implementations have been lagging because the current Internet architecture does not accommodate cross-layering gracefully. As part of our FIND project, we propose a software architecture for the future Internet that is designed to accommodate such interactions. We present a conceptual overview as well as high level software design and an early prototype implementation, and point out the strengths of our architecture. I

A Composition Algorithm for the SILO Cross-Layer Optimization Service Architecture

Abstract — We have previously proposed a software architecture for the future Internet called SILO that is specifically targeted to accommodate cross-layering gracefully. In such an architecture, composing the services that make up the software layers for specific data flow requirements emerges as an essential part of the architectural system. We provide a minimal set of precedence constraints to express service interactions, and an algorithm that obtains correct compositions under this set. The algorithm appears to have a super-polynomial worst case running time, and we conjecture that the problem is NP-complete. We show that under some further simplifications of the set of constraints, the problem is polynomial. I