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One-Bit Quantized Constructive Interference Based Precoding for Massive Multiuser MIMO Downlink
Haqiqatnejad, Alireza; Kayhan, Farbod; Shahbazpanahi, Shahram et al.
2020In One-Bit Quantized Constructive Interference Based Precoding for Massive Multiuser MIMO Downlink
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Keywords :
Biconvex optimization; constructive interference; massive multiuser multiple-input multiple-output downlink; onebit quantized precoding
Abstract :
[en] We propose a one-bit symbol-level precoding method for massive multiuser multiple-input multiple-output (MU-MIMO) downlink systems using the idea of constructive interference (CI). In particular, we adopt a max-min fair design criterion which aims to maximize the minimum instantaneous received signal-to-noise ratio (SNR) among the user equipments (UEs), while ensuring a CI constraint for each UE and under the restriction that the output of the precoder is a vector of binary elements. This design problem is an NP-hard binary quadratic programming due to the one-bit constraints on the elements of the precoder’s output vector, and hence, is difficult to solve. In this paper, we tackle this difficulty by reformulating the problem, in several steps, into an equivalent continuous-domain biconvex form. Our final biconvex reformulation is obtained via an exact penalty approach and can efficiently be solved using a standard block coordinate ascent algorithm. We show through simulation results that the proposed design outperforms the existing schemes in terms of (uncoded) bit error rate. It is further shown via numerical analysis that our solution algorithm is computationally-efficient as it needs only a few tens of iterations to converge in most practical scenarios.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Disciplines :
Electrical & electronics engineering
Author, co-author :
Haqiqatnejad, Alireza ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Kayhan, Farbod ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Shahbazpanahi, Shahram ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Ottersten, Björn ;  University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
yes
Language :
English
Title :
One-Bit Quantized Constructive Interference Based Precoding for Massive Multiuser MIMO Downlink
Publication date :
27 July 2020
Event name :
IEEE International Conference on Communications (ICC)
Event organizer :
IEEE
Event place :
Dublin, Ireland
Event date :
from 07-06-2020 to 11-06-2020
Audience :
International
Main work title :
One-Bit Quantized Constructive Interference Based Precoding for Massive Multiuser MIMO Downlink
Peer reviewed :
Peer reviewed
Focus Area :
Security, Reliability and Trust
FnR Project :
FNR11332341 - Enhanced Signal Space Optimization For Satellite Communication Systems, 2016 (01/02/2017-31/01/2020) - Farbod Kayhan
Funders :
FNR - Fonds National de la Recherche [LU]
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