LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks

Ioana Marcu; Carmen Voicu; Simona V. Halunga; Radu Preda

Research Article

LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks

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@ARTICLE{10.4108/eai.10-7-2018.155052,
    author={Ioana Marcu and Carmen Voicu and Simona V. Halunga and Radu Preda},
    title={LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks},
    journal={EAI Endorsed Transactions on Mobile Communications and Applications},
    volume={4},
    number={14},
    publisher={EAI},
    journal_a={MCA},
    year={2018},
    month={7},
    keywords={multiuser detection, LDPC, fading suppression, coding gain.},
    doi={10.4108/eai.10-7-2018.155052}
}

Ioana Marcu
Carmen Voicu
Simona V. Halunga
Radu Preda
Year: 2018
LDPC encoding performances for fading suppression in MIMO-CDMA wireless networks
MCA
EAI
DOI: 10.4108/eai.10-7-2018.155052

Ioana Marcu¹^,*, Carmen Voicu¹, Simona V. Halunga¹, Radu Preda¹

1: Telecommunications Dept., Electronics, Telecommunications and Information Technology Faculty, University “Politehnica” of Bucharest, Bucharest, Romania

*Contact email: imarcu@radio.pub.ro

Abstract

In multiuser wireless communication systems, signal recovery, even at low BER is a relevant factor for ensuring a safe and reliable communication. Efforts for interference minimization include multiple analysis of source coding/decoding techniques, channel coding/decoding techniques and multiuser detection algorithms. This paper illustrates the improvement brought by LDPC technique in SS systems when AWGN and Rayleigh/Nakagami-m fading occur on communication channel. Performances are evaluated for different sets of spreading sequences (Walsh-Hadamard, Kasami and PN) and based on the simulation results several conclusions are highlighted and further improvement will be proposed for fading effects reduction and interference minimization.

Keywords: multiuser detection, LDPC, fading suppression, coding gain.

Received: 8th Jan 2018
Accepted: 12th May 2018
Published: 11th Jul 2018
Publisher: EAI

: http://dx.doi.org/10.4108/eai.10-7-2018.155052

2018Copyright © 2018 Ioana Marcu et al., licensed to EAI. This is an open access article distributed under the terms of theCreative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.