IEICE TRANSACTIONS on Communications
Frequency Offset Compensation with MMSE-MUD for Multi-Carrier CDMA in Quasi-Synchronous Uplink
Summary :
Multi-Carrier Code Division Multiple Access (MC-CDMA) is one of candidates for the next generation wireless communication systems. In an uplink, the MC-CDMA system suffers from the different access timing (asynchronous transmission), the different fading, and the different frequency offsets of each active user. In this paper we analyze the effects of the frequency offset compensation with MMSE-MUD (minimum mean square error based multi-user detection) for MC-CDMA in a quasi-synchronous uplink. We consider the MC-CDMA system with two subcarrier mapping schemes, the continuous mapping scheme and the discrete mapping scheme. From our theoretical analysis and computer simulation, we show that the MMSE-MUD can compensate the different frequency offsets among users. We also show that the MMSE-MUD significantly improves the bit error rate (BER) for the MC-CDMA system with the continuous mapping scheme.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E87-B No.6 pp.1495-1504
- Publication Date
- 2004/06/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technology
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Osamu TAKYU, Tomoaki OHTSUKI, Masao NAKAGAWA, "Frequency Offset Compensation with MMSE-MUD for Multi-Carrier CDMA in Quasi-Synchronous Uplink" in IEICE TRANSACTIONS on Communications,
vol. E87-B, no. 6, pp. 1495-1504, June 2004, doi: .
Abstract: Multi-Carrier Code Division Multiple Access (MC-CDMA) is one of candidates for the next generation wireless communication systems. In an uplink, the MC-CDMA system suffers from the different access timing (asynchronous transmission), the different fading, and the different frequency offsets of each active user. In this paper we analyze the effects of the frequency offset compensation with MMSE-MUD (minimum mean square error based multi-user detection) for MC-CDMA in a quasi-synchronous uplink. We consider the MC-CDMA system with two subcarrier mapping schemes, the continuous mapping scheme and the discrete mapping scheme. From our theoretical analysis and computer simulation, we show that the MMSE-MUD can compensate the different frequency offsets among users. We also show that the MMSE-MUD significantly improves the bit error rate (BER) for the MC-CDMA system with the continuous mapping scheme.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e87-b_6_1495/_p
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@ARTICLE{e87-b_6_1495,
author={Osamu TAKYU, Tomoaki OHTSUKI, Masao NAKAGAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Frequency Offset Compensation with MMSE-MUD for Multi-Carrier CDMA in Quasi-Synchronous Uplink},
year={2004},
volume={E87-B},
number={6},
pages={1495-1504},
abstract={Multi-Carrier Code Division Multiple Access (MC-CDMA) is one of candidates for the next generation wireless communication systems. In an uplink, the MC-CDMA system suffers from the different access timing (asynchronous transmission), the different fading, and the different frequency offsets of each active user. In this paper we analyze the effects of the frequency offset compensation with MMSE-MUD (minimum mean square error based multi-user detection) for MC-CDMA in a quasi-synchronous uplink. We consider the MC-CDMA system with two subcarrier mapping schemes, the continuous mapping scheme and the discrete mapping scheme. From our theoretical analysis and computer simulation, we show that the MMSE-MUD can compensate the different frequency offsets among users. We also show that the MMSE-MUD significantly improves the bit error rate (BER) for the MC-CDMA system with the continuous mapping scheme.},
keywords={},
doi={},
ISSN={},
month={June},}
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TY - JOUR
TI - Frequency Offset Compensation with MMSE-MUD for Multi-Carrier CDMA in Quasi-Synchronous Uplink
T2 - IEICE TRANSACTIONS on Communications
SP - 1495
EP - 1504
AU - Osamu TAKYU
AU - Tomoaki OHTSUKI
AU - Masao NAKAGAWA
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E87-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2004
AB - Multi-Carrier Code Division Multiple Access (MC-CDMA) is one of candidates for the next generation wireless communication systems. In an uplink, the MC-CDMA system suffers from the different access timing (asynchronous transmission), the different fading, and the different frequency offsets of each active user. In this paper we analyze the effects of the frequency offset compensation with MMSE-MUD (minimum mean square error based multi-user detection) for MC-CDMA in a quasi-synchronous uplink. We consider the MC-CDMA system with two subcarrier mapping schemes, the continuous mapping scheme and the discrete mapping scheme. From our theoretical analysis and computer simulation, we show that the MMSE-MUD can compensate the different frequency offsets among users. We also show that the MMSE-MUD significantly improves the bit error rate (BER) for the MC-CDMA system with the continuous mapping scheme.
ER -
English
