Li, A;
Masouros, C;
(2018)
Constructive Interference Beamforming for Cooperative Dual-Hop MIMO Relay Systems - Invited Paper.
In:
2018 IEEE 87th Vehicular Technology Conference (VTC Spring).
IEEE
Preview |
Text
(A. Li, and C. Masouros 2018 VTC) Constructive Interference Beamforming for Cooperative Dual-Hop MIMO Relay Systems.pdf - Accepted Version Download (1MB) | Preview |
Abstract
In this paper, we consider the downlink transmission for a dual-hop amplify-and-forward (AF) multiple-antenna relay systems, where we propose beamforming techniques for interference exploitation on a symbol level. Based on the constructive interference (CI), we firstly propose a joint source/relay precoding, where the precoding matrices at the source and the output signals at the relay are jointly optimized. To alleviate the high computational costs and circumvent the difficulty of practical implementation of the joint design, we further propose a low-complexity decoupled approach, where a closed-form linear precoding method is first employed at the source, and we then optimize the beamforming matrix at the relay for interference exploitation. It is revealed by numerical results that the proposed approaches that exploit the instantaneous interference can achieve an improved performance over the conventional case with a linear approach.
| Type: | Proceedings paper |
|---|---|
| Title: | Constructive Interference Beamforming for Cooperative Dual-Hop MIMO Relay Systems - Invited Paper |
| Event: | IEEE 87th Vehicular Technology Conference (VTC Spring), 3-6 June 2018, Porto, Portugal |
| ISBN-13: | 9781538663554 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/VTCSpring.2018.8417565 |
| Publisher version: | https://doi.org/10.1109/VTCSpring.2018.8417565 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Cooperative systems, dual-hop AF relay, MIMO, constructive interference, optimization |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10058934 |
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
