We propose a new receiver structure to mitigate interpath interference (IPI) in W-CDMA systems. We model IPI in RAKE combining as intersymbol interference (ISI) and use a two-stage receiver structure. The first stage is a RAKE receiver and the second stage is an equalizer. In cases of multi-code transmission, interference among code channels causes extra impairments which can not be modelled as ISI. Under these circumstances, they are estimated by using decisions from the first stage and then subtracted from the input of the equalizer. The residual interference is equivalent to ISI and can be mitigated by the equalizer. Simulation results show that the proposed receiver provides very promising performance in low spreading factor W-CDMA.
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Sukvasant TANTIKOVIT, Muzhong WANG, "A New RAKE Receiver Structure for the Forward-Link of W-CDMA Systems" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 6, pp. 1218-1222, June 2002, doi: .
Abstract: We propose a new receiver structure to mitigate interpath interference (IPI) in W-CDMA systems. We model IPI in RAKE combining as intersymbol interference (ISI) and use a two-stage receiver structure. The first stage is a RAKE receiver and the second stage is an equalizer. In cases of multi-code transmission, interference among code channels causes extra impairments which can not be modelled as ISI. Under these circumstances, they are estimated by using decisions from the first stage and then subtracted from the input of the equalizer. The residual interference is equivalent to ISI and can be mitigated by the equalizer. Simulation results show that the proposed receiver provides very promising performance in low spreading factor W-CDMA.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_6_1218/_p
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@ARTICLE{e85-b_6_1218,
author={Sukvasant TANTIKOVIT, Muzhong WANG, },
journal={IEICE TRANSACTIONS on Communications},
title={A New RAKE Receiver Structure for the Forward-Link of W-CDMA Systems},
year={2002},
volume={E85-B},
number={6},
pages={1218-1222},
abstract={We propose a new receiver structure to mitigate interpath interference (IPI) in W-CDMA systems. We model IPI in RAKE combining as intersymbol interference (ISI) and use a two-stage receiver structure. The first stage is a RAKE receiver and the second stage is an equalizer. In cases of multi-code transmission, interference among code channels causes extra impairments which can not be modelled as ISI. Under these circumstances, they are estimated by using decisions from the first stage and then subtracted from the input of the equalizer. The residual interference is equivalent to ISI and can be mitigated by the equalizer. Simulation results show that the proposed receiver provides very promising performance in low spreading factor W-CDMA.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - A New RAKE Receiver Structure for the Forward-Link of W-CDMA Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 1218
EP - 1222
AU - Sukvasant TANTIKOVIT
AU - Muzhong WANG
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2002
AB - We propose a new receiver structure to mitigate interpath interference (IPI) in W-CDMA systems. We model IPI in RAKE combining as intersymbol interference (ISI) and use a two-stage receiver structure. The first stage is a RAKE receiver and the second stage is an equalizer. In cases of multi-code transmission, interference among code channels causes extra impairments which can not be modelled as ISI. Under these circumstances, they are estimated by using decisions from the first stage and then subtracted from the input of the equalizer. The residual interference is equivalent to ISI and can be mitigated by the equalizer. Simulation results show that the proposed receiver provides very promising performance in low spreading factor W-CDMA.
ER -