A systolic architecture of a Sequential Monte Carlo-based equalizer for frequency-selective MIMO channels

Abstract

A saystolic VLSI architecture is developed for a sequential Monte Carlo (SMC)-based equalizer for frequency-selective MIMO channels. The architecture is designed to exploit the parallelism intrinsic to the algorithm. The system consists of the VLSI architecture for the QR decomposition, mean calculator, and the SMC blocks, where efficient architectures are employed for each block. Due to the pipelined implementation of the algorithm, the proposed architecture can be mapped to a smaller number of processors along different projection directions, yielding hardware structures with different performance and capabilities. Moreover, fixed-point simulation results are presented.