A Multi-Beam Combining Scheme for DS-CDMA Systems Using Weighting Factor Based on Interference Level
Summary :
This paper focuses on a multi-beam combining scheme for DS-CDMA systems, which has RAKE combiners in multiple overlapped beams, in order to increase the reverse link capacity of DS-CDMA. This scheme is a very attractive technique because the maximal ratio combining (MRC) is carried out in space and time domains. However, in a practical situation, since the terminals in own sector are not uniformly located, the interference levels in respective beams are different. Therefore, receivers at the base station do not achieve ideal combining. This paper proposes a multi-beam combining scheme for DS-CDMA systems using weighting factor based on interference level of each beam. A fast closed loop transmission power control (TPC) scheme for the multi-beam combining system is also proposed. It is confirmed by computer simulation that the proposed scheme has excellent performance in the reverse link even if terminals in own sector are not uniformly located.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E84-B No.5 pp.1328-1336
- Publication Date
- 2001/05/01
- Publicized
- Online ISSN
- DOI
- Type of Manuscript
- PAPER
- Category
- Wireless Communication Technology
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Hiroyasu SANO, Nobuhisa KATAOKA, Hiroshi KUBO, Makoto MIYAKE, "A Multi-Beam Combining Scheme for DS-CDMA Systems Using Weighting Factor Based on Interference Level" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 5, pp. 1328-1336, May 2001, doi: .
Abstract: This paper focuses on a multi-beam combining scheme for DS-CDMA systems, which has RAKE combiners in multiple overlapped beams, in order to increase the reverse link capacity of DS-CDMA. This scheme is a very attractive technique because the maximal ratio combining (MRC) is carried out in space and time domains. However, in a practical situation, since the terminals in own sector are not uniformly located, the interference levels in respective beams are different. Therefore, receivers at the base station do not achieve ideal combining. This paper proposes a multi-beam combining scheme for DS-CDMA systems using weighting factor based on interference level of each beam. A fast closed loop transmission power control (TPC) scheme for the multi-beam combining system is also proposed. It is confirmed by computer simulation that the proposed scheme has excellent performance in the reverse link even if terminals in own sector are not uniformly located.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_5_1328/_p
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@ARTICLE{e84-b_5_1328,
author={Hiroyasu SANO, Nobuhisa KATAOKA, Hiroshi KUBO, Makoto MIYAKE, },
journal={IEICE TRANSACTIONS on Communications},
title={A Multi-Beam Combining Scheme for DS-CDMA Systems Using Weighting Factor Based on Interference Level},
year={2001},
volume={E84-B},
number={5},
pages={1328-1336},
abstract={This paper focuses on a multi-beam combining scheme for DS-CDMA systems, which has RAKE combiners in multiple overlapped beams, in order to increase the reverse link capacity of DS-CDMA. This scheme is a very attractive technique because the maximal ratio combining (MRC) is carried out in space and time domains. However, in a practical situation, since the terminals in own sector are not uniformly located, the interference levels in respective beams are different. Therefore, receivers at the base station do not achieve ideal combining. This paper proposes a multi-beam combining scheme for DS-CDMA systems using weighting factor based on interference level of each beam. A fast closed loop transmission power control (TPC) scheme for the multi-beam combining system is also proposed. It is confirmed by computer simulation that the proposed scheme has excellent performance in the reverse link even if terminals in own sector are not uniformly located.},
keywords={},
doi={},
ISSN={},
month={May},}
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TY - JOUR
TI - A Multi-Beam Combining Scheme for DS-CDMA Systems Using Weighting Factor Based on Interference Level
T2 - IEICE TRANSACTIONS on Communications
SP - 1328
EP - 1336
AU - Hiroyasu SANO
AU - Nobuhisa KATAOKA
AU - Hiroshi KUBO
AU - Makoto MIYAKE
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 5
JA - IEICE TRANSACTIONS on Communications
Y1 - May 2001
AB - This paper focuses on a multi-beam combining scheme for DS-CDMA systems, which has RAKE combiners in multiple overlapped beams, in order to increase the reverse link capacity of DS-CDMA. This scheme is a very attractive technique because the maximal ratio combining (MRC) is carried out in space and time domains. However, in a practical situation, since the terminals in own sector are not uniformly located, the interference levels in respective beams are different. Therefore, receivers at the base station do not achieve ideal combining. This paper proposes a multi-beam combining scheme for DS-CDMA systems using weighting factor based on interference level of each beam. A fast closed loop transmission power control (TPC) scheme for the multi-beam combining system is also proposed. It is confirmed by computer simulation that the proposed scheme has excellent performance in the reverse link even if terminals in own sector are not uniformly located.
ER -
English
