Iterative Frequency-Domain Soft Interference Cancellation for Multicode DS- and MC-CDMA Transmissions and Performance Comparison

Koichi ISHIHARA; Kazuaki TAKEDA; Fumiyuki ADACHI

doi:10.1093/ietcom/e89-b.12.3344

Iterative Frequency-Domain Soft Interference Cancellation for Multicode DS- and MC-CDMA Transmissions and Performance Comparison

Koichi ISHIHARA, Kazuaki TAKEDA, Fumiyuki ADACHI

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Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can significantly improve the BER performance of DS- and MC-CDMA systems in a severe frequency-selective fading channel. However, since the frequency-distorted signal cannot be completely equalized, the residual inter-code interference (ICI) limits the BER performance improvement. 4G systems must support much higher variable rate data services. Orthogonal multicode transmission technique has flexibility in offering variable rate services. However, the BER performance degrades as the number of parallel codes increases. In this paper, we propose an iterative frequency-domain soft interference cancellation (IFDSIC) scheme for multicode DS- and MC-CDMA systems and their achievable BER performances are evaluated by computer simulation.

Publication: IEICE TRANSACTIONS on Communications Vol.E89-B No.12 pp.3344-3355

Publication Date: 2006/12/01

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Online ISSN: 1745-1345

DOI: 10.1093/ietcom/e89-b.12.3344

Type of Manuscript: PAPER

Category: Wireless Communication Technologies

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Koichi ISHIHARA, Kazuaki TAKEDA, Fumiyuki ADACHI, "Iterative Frequency-Domain Soft Interference Cancellation for Multicode DS- and MC-CDMA Transmissions and Performance Comparison" in IEICE TRANSACTIONS on Communications, vol. E89-B, no. 12, pp. 3344-3355, December 2006, doi: 10.1093/ietcom/e89-b.12.3344.
Abstract: Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can significantly improve the BER performance of DS- and MC-CDMA systems in a severe frequency-selective fading channel. However, since the frequency-distorted signal cannot be completely equalized, the residual inter-code interference (ICI) limits the BER performance improvement. 4G systems must support much higher variable rate data services. Orthogonal multicode transmission technique has flexibility in offering variable rate services. However, the BER performance degrades as the number of parallel codes increases. In this paper, we propose an iterative frequency-domain soft interference cancellation (IFDSIC) scheme for multicode DS- and MC-CDMA systems and their achievable BER performances are evaluated by computer simulation.
URL: https://globals.ieice.org/en_transactions/communications/10.1093/ietcom/e89-b.12.3344/_p

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@ARTICLE{e89-b_12_3344,
author={Koichi ISHIHARA, Kazuaki TAKEDA, Fumiyuki ADACHI, },
journal={IEICE TRANSACTIONS on Communications},
title={Iterative Frequency-Domain Soft Interference Cancellation for Multicode DS- and MC-CDMA Transmissions and Performance Comparison},
year={2006},
volume={E89-B},
number={12},
pages={3344-3355},
abstract={Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can significantly improve the BER performance of DS- and MC-CDMA systems in a severe frequency-selective fading channel. However, since the frequency-distorted signal cannot be completely equalized, the residual inter-code interference (ICI) limits the BER performance improvement. 4G systems must support much higher variable rate data services. Orthogonal multicode transmission technique has flexibility in offering variable rate services. However, the BER performance degrades as the number of parallel codes increases. In this paper, we propose an iterative frequency-domain soft interference cancellation (IFDSIC) scheme for multicode DS- and MC-CDMA systems and their achievable BER performances are evaluated by computer simulation.},
keywords={},
doi={10.1093/ietcom/e89-b.12.3344},
ISSN={1745-1345},
month={December},}

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TY - JOUR
TI - Iterative Frequency-Domain Soft Interference Cancellation for Multicode DS- and MC-CDMA Transmissions and Performance Comparison
T2 - IEICE TRANSACTIONS on Communications
SP - 3344
EP - 3355
AU - Koichi ISHIHARA
AU - Kazuaki TAKEDA
AU - Fumiyuki ADACHI
PY - 2006
DO - 10.1093/ietcom/e89-b.12.3344
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E89-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2006
AB - Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can significantly improve the BER performance of DS- and MC-CDMA systems in a severe frequency-selective fading channel. However, since the frequency-distorted signal cannot be completely equalized, the residual inter-code interference (ICI) limits the BER performance improvement. 4G systems must support much higher variable rate data services. Orthogonal multicode transmission technique has flexibility in offering variable rate services. However, the BER performance degrades as the number of parallel codes increases. In this paper, we propose an iterative frequency-domain soft interference cancellation (IFDSIC) scheme for multicode DS- and MC-CDMA systems and their achievable BER performances are evaluated by computer simulation.
ER -