Mobile systems operate in a resource-scarce environment and thus must adapt to external conditions; all layers must make cost-based decisions about what mode of operation to use in response to performance feedback. This paper focuses on the generic interface between adjacent layers (client and server) in a multi-level hierarchy. The Adaptive Research Contracts (ARC) framework uses a bottom-up approach in which the server exposes a range of quality/cost modes to the client above. This allows the client to trade off various algorithms generating different workloads for multiple resources. A case study shows that control can be distributed effectively over multiple layers with ARC; global cost-effective solutions can be obtained by exchanging a small fraction of all possible control settings.
|Number of pages||10|
|Publication status||Published - Dec 2000|
|Event||3rd IEEE Workshop on Mobile Computing Systems and Applications, WMCSA - Monterey, California|
Duration: 7 Dec 2000 → 8 Dec 2000
|Workshop||3rd IEEE Workshop on Mobile Computing Systems and Applications, WMCSA|
|Period||7/12/00 → 8/12/00|
|Other||7-8 Dec. 2000|