Power Estimation of Pipeline FFT Processors

Abstract

Pipeline FFT processors are used in mobile communication systems and in particular in OFDM-based systems. This paper presents a method for power analysis of pipeline FFT processors. This method applies to various architectures with different radices. It also presents a method for mapping utilization rate onto clock-gating, which results in efficient power consumption.

Keywords

• Pipeline FFT processor
• power analysis
• utilization rate
• clock-gating