Co-channel Interference Suppression Scheme Employing Nulling Filter and Turbo Equalizer for Single-Carrier TDMA Systems

Chantima SRITIAPETCH; Seiichi SAMPEI

doi:10.1093/ietcom/e90-b.7.1857

Co-channel Interference Suppression Scheme Employing Nulling Filter and Turbo Equalizer for Single-Carrier TDMA Systems

Chantima SRITIAPETCH, Seiichi SAMPEI

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This paper proposes a co-channel interference (CCI) suppression scheme employing a frequency-domain nulling filter and turbo equalizer for single-carrier uplink time division multiple access (TDMA) systems. In the proposed scheme, after the received signal is transformed into a frequency-domain signal via fast Fourier transform (FFT), CCI from an adjacent cell is suppressed by the nulling filter. Moreover, the proposed scheme employs a soft canceller and minimum mean square error (SC/MMSE) based turbo equalizer to suppress the performance degradation due to inter-symbol interference (ISI) caused by the nulling filter as well as the ISI induced by fading channel. Computer simulation confirms that the proposed scheme is effective in suppression of CCI compared to the conventional linear frequency-domain equalizer.

Publication: IEICE TRANSACTIONS on Communications Vol.E90-B No.7 pp.1857-1860

Publication Date: 2007/07/01

Publicized

Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e90-b.7.1857

Type of Manuscript: LETTER

Category: Wireless Communication Technologies

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Chantima SRITIAPETCH, Seiichi SAMPEI, "Co-channel Interference Suppression Scheme Employing Nulling Filter and Turbo Equalizer for Single-Carrier TDMA Systems" in IEICE TRANSACTIONS on Communications, vol. E90-B, no. 7, pp. 1857-1860, July 2007, doi: 10.1093/ietcom/e90-b.7.1857.
Abstract: This paper proposes a co-channel interference (CCI) suppression scheme employing a frequency-domain nulling filter and turbo equalizer for single-carrier uplink time division multiple access (TDMA) systems. In the proposed scheme, after the received signal is transformed into a frequency-domain signal via fast Fourier transform (FFT), CCI from an adjacent cell is suppressed by the nulling filter. Moreover, the proposed scheme employs a soft canceller and minimum mean square error (SC/MMSE) based turbo equalizer to suppress the performance degradation due to inter-symbol interference (ISI) caused by the nulling filter as well as the ISI induced by fading channel. Computer simulation confirms that the proposed scheme is effective in suppression of CCI compared to the conventional linear frequency-domain equalizer.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e90-b.7.1857/_p

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@ARTICLE{e90-b_7_1857,
author={Chantima SRITIAPETCH, Seiichi SAMPEI, },
journal={IEICE TRANSACTIONS on Communications},
title={Co-channel Interference Suppression Scheme Employing Nulling Filter and Turbo Equalizer for Single-Carrier TDMA Systems},
year={2007},
volume={E90-B},
number={7},
pages={1857-1860},
abstract={This paper proposes a co-channel interference (CCI) suppression scheme employing a frequency-domain nulling filter and turbo equalizer for single-carrier uplink time division multiple access (TDMA) systems. In the proposed scheme, after the received signal is transformed into a frequency-domain signal via fast Fourier transform (FFT), CCI from an adjacent cell is suppressed by the nulling filter. Moreover, the proposed scheme employs a soft canceller and minimum mean square error (SC/MMSE) based turbo equalizer to suppress the performance degradation due to inter-symbol interference (ISI) caused by the nulling filter as well as the ISI induced by fading channel. Computer simulation confirms that the proposed scheme is effective in suppression of CCI compared to the conventional linear frequency-domain equalizer.},
keywords={},
doi={10.1093/ietcom/e90-b.7.1857},
ISSN={1745-1345},
month={July},}

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TY - JOUR
TI - Co-channel Interference Suppression Scheme Employing Nulling Filter and Turbo Equalizer for Single-Carrier TDMA Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1857
EP - 1860
AU - Chantima SRITIAPETCH
AU - Seiichi SAMPEI
PY - 2007
DO - 10.1093/ietcom/e90-b.7.1857
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E90-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2007
AB - This paper proposes a co-channel interference (CCI) suppression scheme employing a frequency-domain nulling filter and turbo equalizer for single-carrier uplink time division multiple access (TDMA) systems. In the proposed scheme, after the received signal is transformed into a frequency-domain signal via fast Fourier transform (FFT), CCI from an adjacent cell is suppressed by the nulling filter. Moreover, the proposed scheme employs a soft canceller and minimum mean square error (SC/MMSE) based turbo equalizer to suppress the performance degradation due to inter-symbol interference (ISI) caused by the nulling filter as well as the ISI induced by fading channel. Computer simulation confirms that the proposed scheme is effective in suppression of CCI compared to the conventional linear frequency-domain equalizer.
ER -