An Improved Channel Shortening Method with Application to MC-CDMA Systems
Summary :
In block transmissions, inter-block interference (IBI) due to delayed waves exceeding a cyclic prefix severely limits the performance. To suppress IBI in downlink MC-CDMA systems, this paper proposes a novel channel shortening method using a time-domain equalizer. The proposed method minimizes a cost function related to equalizer output autocorrelations without the transmission of training symbols. We prove that the method can shorten a channel and suppress IBI completely. Simulation results show that the proposed method can significantly suppress IBI using relatively less number of received blocks than a conventional method when the number of users is moderate.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E95-A No.11 pp.1955-1962
- Publication Date
- 2012/11/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E95.A.1955
- Type of Manuscript
- Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
- Category
- Communication Theory and Signals
Authors
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Mizuki KOTAKE, Teruyuki MIYAJIMA, "An Improved Channel Shortening Method with Application to MC-CDMA Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E95-A, no. 11, pp. 1955-1962, November 2012, doi: 10.1587/transfun.E95.A.1955.
Abstract: In block transmissions, inter-block interference (IBI) due to delayed waves exceeding a cyclic prefix severely limits the performance. To suppress IBI in downlink MC-CDMA systems, this paper proposes a novel channel shortening method using a time-domain equalizer. The proposed method minimizes a cost function related to equalizer output autocorrelations without the transmission of training symbols. We prove that the method can shorten a channel and suppress IBI completely. Simulation results show that the proposed method can significantly suppress IBI using relatively less number of received blocks than a conventional method when the number of users is moderate.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E95.A.1955/_p
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@ARTICLE{e95-a_11_1955,
author={Mizuki KOTAKE, Teruyuki MIYAJIMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An Improved Channel Shortening Method with Application to MC-CDMA Systems},
year={2012},
volume={E95-A},
number={11},
pages={1955-1962},
abstract={In block transmissions, inter-block interference (IBI) due to delayed waves exceeding a cyclic prefix severely limits the performance. To suppress IBI in downlink MC-CDMA systems, this paper proposes a novel channel shortening method using a time-domain equalizer. The proposed method minimizes a cost function related to equalizer output autocorrelations without the transmission of training symbols. We prove that the method can shorten a channel and suppress IBI completely. Simulation results show that the proposed method can significantly suppress IBI using relatively less number of received blocks than a conventional method when the number of users is moderate.},
keywords={},
doi={10.1587/transfun.E95.A.1955},
ISSN={1745-1337},
month={November},}
Copy
TY - JOUR
TI - An Improved Channel Shortening Method with Application to MC-CDMA Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1955
EP - 1962
AU - Mizuki KOTAKE
AU - Teruyuki MIYAJIMA
PY - 2012
DO - 10.1587/transfun.E95.A.1955
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E95-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2012
AB - In block transmissions, inter-block interference (IBI) due to delayed waves exceeding a cyclic prefix severely limits the performance. To suppress IBI in downlink MC-CDMA systems, this paper proposes a novel channel shortening method using a time-domain equalizer. The proposed method minimizes a cost function related to equalizer output autocorrelations without the transmission of training symbols. We prove that the method can shorten a channel and suppress IBI completely. Simulation results show that the proposed method can significantly suppress IBI using relatively less number of received blocks than a conventional method when the number of users is moderate.
ER -
English
