eprintid: 10065087
rev_number: 16
eprint_status: archive
userid: 608
dir: disk0/10/06/50/87
datestamp: 2019-01-03 14:36:56
lastmod: 2021-12-13 23:52:48
status_changed: 2019-01-03 14:36:56
type: article
metadata_visibility: show
creators_name: Law, KL
creators_name: Masouros, C
title: Symbol Error Rate Minimization Precoding for Interference Exploitation
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
keywords: Interference, Array signal processing, Downlink, Optimization, Signal to noise ratio,
Precoding, Quality of service
note: This is an OA article published under the IEEE OA licence.
abstract: This paper investigates a new beamforming approach for interference exploitation, which has recently attracted interest as an alternative to conventional interference-avoidance beamforming for the downlink of multiple-input multiple-output systems. Contrary to existing interference exploitation approaches that focus on signal-to-noise ratio performance, we adopt an approach based on the detection region of the signal constellation. Focusing on quality of service, we then formulate the optimization for minimizing the error probability (EP) for the worst user, subject to power constraints. We do this by employing the knowledge of channel state information at the transmitter, along with all downlink users' data that are readily available at the base station during downlink transmission. In this context, we also show that the detection-region-based beamforming and the worst user EP downlink beamforming are equivalent problems. Finally, we further propose a sum EPs approach and provide an analytic bound of average symbol error rate performance. Our simulations verify that the proposed techniques provide significantly improved performance over conventional downlink beamforming techniques.
date: 2018-11
date_type: published
publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
official_url: https://doi.org/10.1109/TCOMM.2018.2843784
oa_status: green
full_text_type: pub
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 1562534
doi: 10.1109/TCOMM.2018.2843784
lyricists_name: Masouros, Christos
lyricists_id: CMASO14
actors_name: Nonhebel, Lucinda
actors_id: LNONH33
actors_role: owner
full_text_status: public
publication: IEEE Transactions on Communications
volume: 66
number: 11
pagerange: 5718-5731
pages: 14
issn: 0090-6778
citation:        Law, KL;    Masouros, C;      (2018)    Symbol Error Rate Minimization Precoding for Interference Exploitation.                   IEEE Transactions on Communications , 66  (11)   pp. 5718-5731.    10.1109/TCOMM.2018.2843784 <https://doi.org/10.1109/TCOMM.2018.2843784>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10065087/1/Masouros_VoR_08374931.pdf