Pseudo Distance for Trellis Coded Modulation in Overloaded MIMO OFDM with Sphere Decoding
Summary :
Efficient detection schemes for an overloaded multiple-input multiple-output (MIMO) system have been investigated recently. The literature shows that trellis coded modulation (TCM) is able to enhance a system's capability to separate signal streams in the detection process of MIMO systems. However, the computational complexity remains high as a maximum likelihood detection (MLD) algorithm is used in the scheme. Thus, a sphere decoding (SD) algorithm with a pseudo distance (PD) is proposed in this paper. The PD maintains the coding gain advantage of the TCM by keeping some potential paths connected unlike conventional SD which truncates them. It is shown that the proposed scheme can reduce the number of distance calculations by about 98% for the transmission of 3 signal streams. In addition, the proposed scheme improves the performance by about 2dB at the bit error rate of 10-2.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E99-B No.3 pp.723-731
- Publication Date
- 2016/03/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2015EBP3218
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technologies
Authors
Ilmiawan SHUBHI
Kyoto University
Yukitoshi SANADA
Keio University
Keyword
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Ilmiawan SHUBHI, Yukitoshi SANADA, "Pseudo Distance for Trellis Coded Modulation in Overloaded MIMO OFDM with Sphere Decoding" in IEICE TRANSACTIONS on Communications,
vol. E99-B, no. 3, pp. 723-731, March 2016, doi: 10.1587/transcom.2015EBP3218.
Abstract: Efficient detection schemes for an overloaded multiple-input multiple-output (MIMO) system have been investigated recently. The literature shows that trellis coded modulation (TCM) is able to enhance a system's capability to separate signal streams in the detection process of MIMO systems. However, the computational complexity remains high as a maximum likelihood detection (MLD) algorithm is used in the scheme. Thus, a sphere decoding (SD) algorithm with a pseudo distance (PD) is proposed in this paper. The PD maintains the coding gain advantage of the TCM by keeping some potential paths connected unlike conventional SD which truncates them. It is shown that the proposed scheme can reduce the number of distance calculations by about 98% for the transmission of 3 signal streams. In addition, the proposed scheme improves the performance by about 2dB at the bit error rate of 10-2.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2015EBP3218/_p
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@ARTICLE{e99-b_3_723,
author={Ilmiawan SHUBHI, Yukitoshi SANADA, },
journal={IEICE TRANSACTIONS on Communications},
title={Pseudo Distance for Trellis Coded Modulation in Overloaded MIMO OFDM with Sphere Decoding},
year={2016},
volume={E99-B},
number={3},
pages={723-731},
abstract={Efficient detection schemes for an overloaded multiple-input multiple-output (MIMO) system have been investigated recently. The literature shows that trellis coded modulation (TCM) is able to enhance a system's capability to separate signal streams in the detection process of MIMO systems. However, the computational complexity remains high as a maximum likelihood detection (MLD) algorithm is used in the scheme. Thus, a sphere decoding (SD) algorithm with a pseudo distance (PD) is proposed in this paper. The PD maintains the coding gain advantage of the TCM by keeping some potential paths connected unlike conventional SD which truncates them. It is shown that the proposed scheme can reduce the number of distance calculations by about 98% for the transmission of 3 signal streams. In addition, the proposed scheme improves the performance by about 2dB at the bit error rate of 10-2.},
keywords={},
doi={10.1587/transcom.2015EBP3218},
ISSN={1745-1345},
month={March},}
Copy
TY - JOUR
TI - Pseudo Distance for Trellis Coded Modulation in Overloaded MIMO OFDM with Sphere Decoding
T2 - IEICE TRANSACTIONS on Communications
SP - 723
EP - 731
AU - Ilmiawan SHUBHI
AU - Yukitoshi SANADA
PY - 2016
DO - 10.1587/transcom.2015EBP3218
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E99-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2016
AB - Efficient detection schemes for an overloaded multiple-input multiple-output (MIMO) system have been investigated recently. The literature shows that trellis coded modulation (TCM) is able to enhance a system's capability to separate signal streams in the detection process of MIMO systems. However, the computational complexity remains high as a maximum likelihood detection (MLD) algorithm is used in the scheme. Thus, a sphere decoding (SD) algorithm with a pseudo distance (PD) is proposed in this paper. The PD maintains the coding gain advantage of the TCM by keeping some potential paths connected unlike conventional SD which truncates them. It is shown that the proposed scheme can reduce the number of distance calculations by about 98% for the transmission of 3 signal streams. In addition, the proposed scheme improves the performance by about 2dB at the bit error rate of 10-2.
ER -
English
