Design and implementation of a high performance closed-loop MIMO communications with ultra low complexity handset

Abstract

An efficient and practicable MIMO transceiver in which transmitter antenna selection is applied to geometric mean decomposition (GMD) which is combined with Tomlinson-Harashima Precoder (THP) in TDD system is implemented. The proposed work can save more than 60% computational complexity at the handset compared with that of the GMD scheme is comparable to the conventional linear transceiver schemes. From the simulation results, the proposed transceiver can achieve about 7 dB SNR improvement over the open-loop VBLAST counterparts under i.i.d. channel. Finally, a MIMO joint transceiver is implemented on a SoC platform which is realized to do the hardware/software (HW/SW) co-verification strategy to debug the proposed architecture. In this paper, which introduces the figure file to be the transmission media. Designer could verify the decoded results in various environment by liquid crystal display (LCD) panel.