Computationally efficient 2-step QRM-MLD for single-carrier transmissions

Katsuhiro Temma; Tetsuya Yamamoto; Fumiyuki Adachi

doi:10.1109/ICCS.2010.5685879

Computationally efficient 2-step QRM-MLD for single-carrier transmissions

Katsuhiro Temma, Tetsuya Yamamoto, Fumiyuki Adachi

Research Organization of Electrical Communication (ROEC)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

Recently, a frequency-domain block signal detection (FDBD) using maximum likelihood detection (MLD) employing QR decomposition and M-algorithm (QRM-MLD) was proposed for the reception of the single-carrier (SC) signals transmitted over a frequency-selective fading channel. SC-FDBD with QRMMLD can significantly improve the bit error rate (BER) performance of SC transmission while reducing significantly the computational complexity compared to the MLD. However, its computational complexity is still high. In this paper, we propose a computationally efficient 2-step QRM-MLD SC-FDBD. Compared to conventional QRM-MLD, the number of symbol candidates can be reduced by using the decision made by minimum mean square error based frequency-domain equalization (MMSE-FDE). We evaluate the BER performance achievable by 2-step QRM-MLD and show that it can significantly reduce the computational complexity while keeping the BER performance almost the same as the conventional QRMMLD.

Original language	English
Title of host publication	12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Pages	782-786
Number of pages	5
DOIs	https://doi.org/10.1109/ICCS.2010.5685879
Publication status	Published - 2010
Event	12th IEEE International Conference on Communication Systems 2010, ICCS 2010 - Singapore, Singapore Duration: 2010 Nov 17 → 2010 Nov 19

Publication series

Name	12th IEEE International Conference on Communication Systems 2010, ICCS 2010

Other

Other	12th IEEE International Conference on Communication Systems 2010, ICCS 2010
Country	Singapore
City	Singapore
Period	10/11/17 → 10/11/19

Keywords

Block signal detection
MMSE-FDE
QRM-MLD
Single-carrier

ASJC Scopus subject areas

Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.1109/ICCS.2010.5685879

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Computationally efficient 2-step QRM-MLD for single-carrier transmissions. / Temma, Katsuhiro; Yamamoto, Tetsuya; Adachi, Fumiyuki.

12th IEEE International Conference on Communication Systems 2010, ICCS 2010. 2010. p. 782-786 5685879 (12th IEEE International Conference on Communication Systems 2010, ICCS 2010).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Temma, K, Yamamoto, T & Adachi, F 2010, Computationally efficient 2-step QRM-MLD for single-carrier transmissions. in 12th IEEE International Conference on Communication Systems 2010, ICCS 2010., 5685879, 12th IEEE International Conference on Communication Systems 2010, ICCS 2010, pp. 782-786, 12th IEEE International Conference on Communication Systems 2010, ICCS 2010, Singapore, Singapore, 10/11/17. https://doi.org/10.1109/ICCS.2010.5685879

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abstract = "Recently, a frequency-domain block signal detection (FDBD) using maximum likelihood detection (MLD) employing QR decomposition and M-algorithm (QRM-MLD) was proposed for the reception of the single-carrier (SC) signals transmitted over a frequency-selective fading channel. SC-FDBD with QRMMLD can significantly improve the bit error rate (BER) performance of SC transmission while reducing significantly the computational complexity compared to the MLD. However, its computational complexity is still high. In this paper, we propose a computationally efficient 2-step QRM-MLD SC-FDBD. Compared to conventional QRM-MLD, the number of symbol candidates can be reduced by using the decision made by minimum mean square error based frequency-domain equalization (MMSE-FDE). We evaluate the BER performance achievable by 2-step QRM-MLD and show that it can significantly reduce the computational complexity while keeping the BER performance almost the same as the conventional QRMMLD.",

keywords = "Block signal detection, MMSE-FDE, QRM-MLD, Single-carrier",

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N2 - Recently, a frequency-domain block signal detection (FDBD) using maximum likelihood detection (MLD) employing QR decomposition and M-algorithm (QRM-MLD) was proposed for the reception of the single-carrier (SC) signals transmitted over a frequency-selective fading channel. SC-FDBD with QRMMLD can significantly improve the bit error rate (BER) performance of SC transmission while reducing significantly the computational complexity compared to the MLD. However, its computational complexity is still high. In this paper, we propose a computationally efficient 2-step QRM-MLD SC-FDBD. Compared to conventional QRM-MLD, the number of symbol candidates can be reduced by using the decision made by minimum mean square error based frequency-domain equalization (MMSE-FDE). We evaluate the BER performance achievable by 2-step QRM-MLD and show that it can significantly reduce the computational complexity while keeping the BER performance almost the same as the conventional QRMMLD.

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