Hierarchical MFMO Circuit Modules for an Energy-Efficient SDR DBF

Abstract

SUMMARYThe hierarchical multi-function matrix operation (MFMO) circuit modules are designed using coordinate rotations digital computer (CORDIC) algorithm for realizing the intensive computation of matrix operations. The paper emphasizes that the designed hierarchical MFMO circuit modules can be used to develop a power-efficient software-defined radio (SDR) digital beamformer (DBF). The formulas of the processing time for the scalable MFMO circuit modules implemented in field programmable gate array (FPGA) are derived to allocate the proper logic resources for the hardware reconfiguration. The hierarchical MFMO circuit modules are scalable to the changing number of array branches employed for the SDR DBF to achieve the purpose of power saving. The efficient reuse of the common MFMO circuit modules in the SDR DBF can also lead to energy reduction. Finally, the power dissipation and reconfiguration function in the different modes of the SDR DBF are observed from the experiment results.

VMCK Transmission System Design for SDR Applications

“…The model-based development kit (MBDK) as one board support package allows its users to develop applications for the platform with Simulink within MATLAB. SDR platform can use programmable hardware to implement baseband processing of wireless communication protocols flexibly by software [1][2]. Thus SDR is concerned gradually.…”