Power Estimation at Different Abstraction Levels for Wireless Baseband Processors
The Software-Defined Radio (SDR) solutions which are expected to be used widely in future smartphones, have tight processing time and power consumption constraints. During the SoftWare (SW) phase of the application mapping on these SDR platforms, i.e., when the application is mapped,
compiled and evaluated by the Instruction Set Simulator (ISS), SW designers are worried only about the timing and not about the power consumption. Power consumption is analyzed only later during the HardWare (HW) phase, when the application is simulated at gate-level on the synthesized processor.
In this paper we present a methodology which analyzes both, the timing aspects as well as the power aspects at different abstraction levels for implementation of different wireless standards using a wireless baseband processor. We use our gate-level estimation flow to obtain accurate performance
and power numbers. For timing aspects we use both the ISS and gate-level simulations. For power aspects we derive a power model from gate-level simulation results and integrate it into the ISS. These obtained timing and power numbers are integrated into our high-level DART platform simulator
to obtain the global view on the timing and power consumption for different wireless applications. Our proposed flow proposed can be used at an early stage of future SDR designs to obtain a profound insight on the timing and power consumption of mapped applications.
Keywords: BASEBAND PROCESSOR; PERFORMANCE; POWER ESTIMATION; SOFTWARE DEFINED RADIO
Document Type: Research Article
Publication date: 01 December 2012
- The electronic systems that can operate with very low power are of great technological interest. The growing research activity in the field of low power electronics requires a forum for rapid dissemination of important results: Journal of Low Power Electronics (JOLPE) is that international forum which offers scientists and engineers timely, peer-reviewed research in this field.
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