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Authors: Carla Ramiro Sánchez 1 ; Antonio M. Vidal Maciá 1 and Alberto Gonzalez Salvador 2

Affiliations: 1 Universitat Politècnica de València, Spain ; 2 Institute of Telecommunications and Multimedia Applications and Universitat Politècnica de València, Spain

Keyword(s): Soft-output Detector, BICM, HPC Library, GPU, Multi-core, CUDA, MIMO.

Abstract: Error control coding ensures the desired quality of service for a given data rate and is necessary to improve relaibility of Multiple-Input Multiple-Output (MIMO) communication systems. Therefore, a good combination of detection MIMO schemes and coding schemes has drawn attention in recent years. The most promising coding schemes are Bit-Interleaved Coded Modulation (BICM). At the transmitter the information bits are encoded using an error-correction code. The soft demodulator provides the reliability information in form of real valued log-likehood ratios (LLR). These values are used by the channel decoder to make final decisions on the transmitted coded bits. Nevertheless, these sophisticated techniques produce a significant increase in the computational cost and require large computational power. This paper presents a set of Soft-Output detectors implemented in CUDA and OpenMP, which allows to considerably decrease the computational time required for the data detection stage in MIM O systems. These detectors will be included in the future MIMOPack library, a High Performance Computing (HPC) library for MIMO Communication Systems. Experimental results confirm that these implementations allow to accelerate the data detection stage for different constellation sizes and number of antennas. (More)

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Paper citation in several formats:
Ramiro Sánchez, C.; M. Vidal Maciá, A. and Gonzalez Salvador, A. (2015). Efficient Soft-output Detectors - Multi-core and GPU implementations in MIMOPack Library. In Proceedings of the 5th International Conference on Pervasive and Embedded Computing and Communication Systems (PECCS 2015) - AMC; ISBN 978-989-758-084-0; ISSN 2184-2817, SciTePress, pages 335-344. DOI: 10.5220/0005369503350344

@conference{amc15,
author={Carla {Ramiro Sánchez}. and Antonio {M. Vidal Maciá}. and Alberto {Gonzalez Salvador}.},
title={Efficient Soft-output Detectors - Multi-core and GPU implementations in MIMOPack Library},
booktitle={Proceedings of the 5th International Conference on Pervasive and Embedded Computing and Communication Systems (PECCS 2015) - AMC},
year={2015},
pages={335-344},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005369503350344},
isbn={978-989-758-084-0},
issn={2184-2817},
}

TY - CONF

JO - Proceedings of the 5th International Conference on Pervasive and Embedded Computing and Communication Systems (PECCS 2015) - AMC
TI - Efficient Soft-output Detectors - Multi-core and GPU implementations in MIMOPack Library
SN - 978-989-758-084-0
IS - 2184-2817
AU - Ramiro Sánchez, C.
AU - M. Vidal Maciá, A.
AU - Gonzalez Salvador, A.
PY - 2015
SP - 335
EP - 344
DO - 10.5220/0005369503350344
PB - SciTePress

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