The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Sistem Multipleks Bahagian Frekuensi Ortogonal-Jujukan Terus/Bahagian Kod Berbilang Akses (OFDM-DS/CDMA) menyediakan keuntungan kepelbagaian frekuensi mengelakkan gangguan antara simbol (ISI) dalam saluran pudar terpilih frekuensi. Walau bagaimanapun, keuntungan kepelbagaian laluan tidak boleh diperoleh dengan menggunakan skim OFDM-DS/CDMA konvensional. Kertas kerja ini mencadangkan sistem penghantaran berbilang antena baharu dengan gabungan kepelbagaian laluan dan kepelbagaian frekuensi. Isyarat setiap antena ditangguhkan oleh beberapa cip untuk mencipta kepelbagaian laluan buatan serta kepelbagaian frekuensi penghantaran berbilang pembawa yang kemudiannya boleh digabungkan dengan menggunakan penerima RAKE. Oleh itu skim penghantaran berbilang antena mencipta kesan kepelbagaian laluan pada isyarat tidak berkorelasi dalam berbilang pembawa daripada setiap antena. Isyarat tidak berkorelasi yang diterima boleh diproses oleh kepelbagaian Penggabungan Nisbah Maksimum (MRC) tanpa ISI pada penerima RAKE walaupun apabila kami menggunakan modulasi FFT. Hasilnya, kita boleh memperoleh gabungan kepelbagaian laluan dan keuntungan kepelbagaian frekuensi secara berkesan oleh sistem RAKE dengan gabungan berbilang antena.
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Salinan
Kyesan LEE, Masao NAKAGAWA, "Multiple Antenna Transmission System Using RAKE Combining Diversity for a Multi-Carrier DS/CDMA in a Frequency Selective Fading Channel" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 4, pp. 739-746, April 2001, doi: .
Abstract: Orthogonal Frequency Division Multiplexing-Direct Sequence/Code Division Multiple Access (OFDM-DS/CDMA) systems provide frequency diversity gain avoiding inter symbol interference (ISI) in a frequency selective fading channel. However, path diversity gain can not be obtained by using conventional OFDM-DS/CDMA schemes. This paper proposes a new multiple antenna transmission system with combined path diversity and frequency diversity. Signal of each antenna is delayed by several chips to create artificial path diversity as well as frequency diversity of multi-carrier transmission in which can then be combined by using a RAKE receiver. Therefore multiple antenna transmission scheme creates a path diversity effect on uncorrelated signals in multi-carriers from each antenna. The received uncorrelated signals can be processed by Maximum Ratio Combining (MRC) diversity without ISI at a RAKE receiver even when we use FFT modulation. As a result, we can obtain combined path diversity and frequency diversity gain effectively by the RAKE system with the combination of multiple antennas.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_4_739/_p
Salinan
@ARTICLE{e84-b_4_739,
author={Kyesan LEE, Masao NAKAGAWA, },
journal={IEICE TRANSACTIONS on Communications},
title={Multiple Antenna Transmission System Using RAKE Combining Diversity for a Multi-Carrier DS/CDMA in a Frequency Selective Fading Channel},
year={2001},
volume={E84-B},
number={4},
pages={739-746},
abstract={Orthogonal Frequency Division Multiplexing-Direct Sequence/Code Division Multiple Access (OFDM-DS/CDMA) systems provide frequency diversity gain avoiding inter symbol interference (ISI) in a frequency selective fading channel. However, path diversity gain can not be obtained by using conventional OFDM-DS/CDMA schemes. This paper proposes a new multiple antenna transmission system with combined path diversity and frequency diversity. Signal of each antenna is delayed by several chips to create artificial path diversity as well as frequency diversity of multi-carrier transmission in which can then be combined by using a RAKE receiver. Therefore multiple antenna transmission scheme creates a path diversity effect on uncorrelated signals in multi-carriers from each antenna. The received uncorrelated signals can be processed by Maximum Ratio Combining (MRC) diversity without ISI at a RAKE receiver even when we use FFT modulation. As a result, we can obtain combined path diversity and frequency diversity gain effectively by the RAKE system with the combination of multiple antennas.},
keywords={},
doi={},
ISSN={},
month={April},}
Salinan
TY - JOUR
TI - Multiple Antenna Transmission System Using RAKE Combining Diversity for a Multi-Carrier DS/CDMA in a Frequency Selective Fading Channel
T2 - IEICE TRANSACTIONS on Communications
SP - 739
EP - 746
AU - Kyesan LEE
AU - Masao NAKAGAWA
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2001
AB - Orthogonal Frequency Division Multiplexing-Direct Sequence/Code Division Multiple Access (OFDM-DS/CDMA) systems provide frequency diversity gain avoiding inter symbol interference (ISI) in a frequency selective fading channel. However, path diversity gain can not be obtained by using conventional OFDM-DS/CDMA schemes. This paper proposes a new multiple antenna transmission system with combined path diversity and frequency diversity. Signal of each antenna is delayed by several chips to create artificial path diversity as well as frequency diversity of multi-carrier transmission in which can then be combined by using a RAKE receiver. Therefore multiple antenna transmission scheme creates a path diversity effect on uncorrelated signals in multi-carriers from each antenna. The received uncorrelated signals can be processed by Maximum Ratio Combining (MRC) diversity without ISI at a RAKE receiver even when we use FFT modulation. As a result, we can obtain combined path diversity and frequency diversity gain effectively by the RAKE system with the combination of multiple antennas.
ER -