Two-Way Amplify-Forward MIMO Relay Systems Using MMSE Pre-Equalization

Jinlong Wang; Gang Wang; Liming Zheng; Hailong Wang

10th EAI International Conference on Communications and Networking in China

Research Article

Two-Way Amplify-Forward MIMO Relay Systems Using MMSE Pre-Equalization

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.4108/eai.15-8-2015.2260804,
    author={Jinlong Wang and Gang Wang and Liming Zheng and Hailong Wang},
    title={Two-Way Amplify-Forward MIMO Relay Systems Using MMSE Pre-Equalization},
    proceedings={10th EAI International Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2015},
    month={9},
    keywords={two-way relay; amplify-forward; mimo; mmse; pre-equalization},
    doi={10.4108/eai.15-8-2015.2260804}
}

Jinlong Wang
Gang Wang
Liming Zheng
Hailong Wang
Year: 2015
Two-Way Amplify-Forward MIMO Relay Systems Using MMSE Pre-Equalization
CHINACOM
IEEE
DOI: 10.4108/eai.15-8-2015.2260804

Jinlong Wang¹, Gang Wang¹, Liming Zheng¹^,*, Hailong Wang¹

1: Harbin Institute of Technology

*Contact email: zheng@hit.edu.cn

Abstract

Based on the assumption that the user nodes and relay node are equipped with multiple antennas, we propose the minimum mean squared error (MMSE) pre-equalization scheme to address the interference elimination issue for two-way AF MIMO relay systems. Compared to the zero-forcing (ZF) equalization and MMSE equalization, it is proved that MMSE pre-equalization scheme has the lowest noise power in MIMO system. Therefore, MMSE pre-equalization is adopted at transmit node in both multiple access phase and broadcast phase. The performance of the proposed scheme is demonstrated by numerical simulations.

Keywords: two-way relay; amplify-forward; mimo; mmse; pre-equalization

Published: 2015-09-21
Publisher: IEEE

: http://dx.doi.org/10.4108/eai.15-8-2015.2260804