IEICE TRANSACTIONS on Fundamentals
CS-CDMA/CP with ZCZ Codes from an M-Sequence and Its Performance for Downlink Transmission over a Multipath Fading Channel
Summary :
Convolutional spreading CDMA with cyclic prefix (CS-CDMA/CP) is a multiuser interference-free (MUI-free) CDMA scheme proposed for multipath channels based on the convolution between user data and zero correlation zone (ZCZ) code, and its characteristics depend on the employed ZCZ codes. Although ternary ZCZ codes have more sequences than binary ZCZ codes in general, transmitted signal with ternary ZCZ codes give a slightly higher peak-to-average power ratio (PAPR). In this paper we propose the use of periodic ZCZ codes generated from an M-sequence which not only provides the same user capacity as ternary ZCZ codes but allows more design flexibility. Simulation results show that the new ZCZ code shows stronger robustness against an imperfect transmitter with clipping and enjoys better BER performances when used in CS-CDMA/CP compared to the conventional DS-CDMA with MRC-RAKE.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E90-A No.6 pp.1204-1213
- Publication Date
- 2007/06/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1093/ietfec/e90-a.6.1204
- Type of Manuscript
- PAPER
- Category
- Spread Spectrum Technologies and Applications
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Keyword
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Nalin S. WEERASINGHE, Chenggao HAN, Takeshi HASHIMOTO, "CS-CDMA/CP with ZCZ Codes from an M-Sequence and Its Performance for Downlink Transmission over a Multipath Fading Channel" in IEICE TRANSACTIONS on Fundamentals,
vol. E90-A, no. 6, pp. 1204-1213, June 2007, doi: 10.1093/ietfec/e90-a.6.1204.
Abstract: Convolutional spreading CDMA with cyclic prefix (CS-CDMA/CP) is a multiuser interference-free (MUI-free) CDMA scheme proposed for multipath channels based on the convolution between user data and zero correlation zone (ZCZ) code, and its characteristics depend on the employed ZCZ codes. Although ternary ZCZ codes have more sequences than binary ZCZ codes in general, transmitted signal with ternary ZCZ codes give a slightly higher peak-to-average power ratio (PAPR). In this paper we propose the use of periodic ZCZ codes generated from an M-sequence which not only provides the same user capacity as ternary ZCZ codes but allows more design flexibility. Simulation results show that the new ZCZ code shows stronger robustness against an imperfect transmitter with clipping and enjoys better BER performances when used in CS-CDMA/CP compared to the conventional DS-CDMA with MRC-RAKE.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1093/ietfec/e90-a.6.1204/_p
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@ARTICLE{e90-a_6_1204,
author={Nalin S. WEERASINGHE, Chenggao HAN, Takeshi HASHIMOTO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={CS-CDMA/CP with ZCZ Codes from an M-Sequence and Its Performance for Downlink Transmission over a Multipath Fading Channel},
year={2007},
volume={E90-A},
number={6},
pages={1204-1213},
abstract={Convolutional spreading CDMA with cyclic prefix (CS-CDMA/CP) is a multiuser interference-free (MUI-free) CDMA scheme proposed for multipath channels based on the convolution between user data and zero correlation zone (ZCZ) code, and its characteristics depend on the employed ZCZ codes. Although ternary ZCZ codes have more sequences than binary ZCZ codes in general, transmitted signal with ternary ZCZ codes give a slightly higher peak-to-average power ratio (PAPR). In this paper we propose the use of periodic ZCZ codes generated from an M-sequence which not only provides the same user capacity as ternary ZCZ codes but allows more design flexibility. Simulation results show that the new ZCZ code shows stronger robustness against an imperfect transmitter with clipping and enjoys better BER performances when used in CS-CDMA/CP compared to the conventional DS-CDMA with MRC-RAKE.},
keywords={},
doi={10.1093/ietfec/e90-a.6.1204},
ISSN={1745-1337},
month={June},}
Copy
TY - JOUR
TI - CS-CDMA/CP with ZCZ Codes from an M-Sequence and Its Performance for Downlink Transmission over a Multipath Fading Channel
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1204
EP - 1213
AU - Nalin S. WEERASINGHE
AU - Chenggao HAN
AU - Takeshi HASHIMOTO
PY - 2007
DO - 10.1093/ietfec/e90-a.6.1204
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E90-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2007
AB - Convolutional spreading CDMA with cyclic prefix (CS-CDMA/CP) is a multiuser interference-free (MUI-free) CDMA scheme proposed for multipath channels based on the convolution between user data and zero correlation zone (ZCZ) code, and its characteristics depend on the employed ZCZ codes. Although ternary ZCZ codes have more sequences than binary ZCZ codes in general, transmitted signal with ternary ZCZ codes give a slightly higher peak-to-average power ratio (PAPR). In this paper we propose the use of periodic ZCZ codes generated from an M-sequence which not only provides the same user capacity as ternary ZCZ codes but allows more design flexibility. Simulation results show that the new ZCZ code shows stronger robustness against an imperfect transmitter with clipping and enjoys better BER performances when used in CS-CDMA/CP compared to the conventional DS-CDMA with MRC-RAKE.
ER -
English
