Presentation
A Service-Aware Energy-Efficient DVFS Framework for System-on-Chip Architectures
SessionSystem & Software Deployment
DescriptionModern Dual‑SIM‑Dual‑Standby (DSDS) designs must synchronize signaling, paging, and bearer scheduling to avoid QoS loss caused by radio conflicts, SIM‑switch delays, or RF‑resource contention creating challenges for preserving quality‑of‑service (QoS) across simultaneous networks. Dynamic Voltage and Frequency Scaling (DVFS) is a widely adopted power‑management technique in today's processors and system‑on‑chip (SoC) architectures. By dynamically adjusting supply voltage and clock frequency in response to real‑time workload demands, DVFS cuts both dynamic and static power while still meeting performance targets. In dual‑SIM devices that share radio resources between two protocol stacks, activity on one stack can induce a "blackout" on the other, leading to data inactivity and QoS degradation. The blackout duration is directly governed by the DVFS settings applied to the processor and bus while the opposite stack is executing its tasks. Existing state‑of‑the‑art methods focus on monolithic workloads, thermal‑throttling avoidance, or overall energy minimization, and they ignore the inter‑stack blackout overhead that is unique to dual‑SIM phones. This paper proposes a service‑energy based, intelligent DVFS framework that jointly optimizes the DVFS levels for both stacks by minimizing a weighted sum of throughput loss and total energy consumption. Simulation results show that the algorithm achieves a smooth, monotonic trade‑off, allowing a seamless shift between reduced blackout time and lower energy use.
Event Type
Engineering Presentation
TimeMonday, July 274:45pm - 5:00pm PDT
LocationSeaside Ballroom B