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
Strategi kepelbagaian adalah cekap untuk mengurangkan turun naik kualiti komunikasi yang disebabkan oleh pudar. Untuk terus mengekalkan kualiti komunikasi dan meningkatkan kapasiti komunikasi, kertas kerja ini mencadangkan pendekatan kepelbagaian dua dimensi dengan penyambungan prapengekodan spektrum secara bersiri dan pengekodan blok masa ruang pembezaan ternormalisasi kuasa (PN-DSTBC). Prapengekodan spektrum dapat mengambil manfaat daripada kesan kepelbagaian frekuensi tanpa kehilangan kecekapan spektrum. Di samping itu, PN-DSTBC teguh menentang hingar fasa yang serius dalam jalur frekuensi sangat tinggi (EHF) dengan mengeksploitasi kesan kepelbagaian spatial. Walau bagaimanapun, terdapat masalah bahawa gabungan naif merendahkan prestasi disebabkan oleh ketidakseimbangan varians hingar yang setara dengan frekuensi penghantaran. Oleh itu, kami meneliti penyahkod PN-DSTBC yang disamakan sebagai pendekatan yang diubah suai kepada variasi hingar setara yang seragam ke atas frekuensi. Penilaian prestasi menggunakan simulasi komputer menunjukkan bahawa pendekatan yang diubah suai yang dicadangkan menghasilkan peningkatan prestasi pada mana-mana skim modulasi dan pada sebarang bilangan frekuensi penghantaran. Tambahan pula, dalam kes 64QAM dan dua frekuensi penghantaran, keuntungan prestasi pendekatan yang diubah suai adalah 4dB lebih besar daripada PN-DSTBC hanya pada BER=10 tanpa kod.-4.
Kanako YAMAGUCHI
Mitsubishi Electric Corporation
Nicolas GRESSET
the Mitsubishi Electric R&D Centre Europe
Hiroshi NISHIMOTO
Mitsubishi Electric Corporation
Akihiro OKAZAKI
Mitsubishi Electric Corporation
Hiroyasu SANO
Mitsubishi Electric Corporation
Shusaku UMEDA
Mitsubishi Electric Corporation
Kaoru TSUKAMOTO
Mitsubishi Electric Corporation
Atsushi OKAMURA
Mitsubishi Electric Corporation
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Salinan
Kanako YAMAGUCHI, Nicolas GRESSET, Hiroshi NISHIMOTO, Akihiro OKAZAKI, Hiroyasu SANO, Shusaku UMEDA, Kaoru TSUKAMOTO, Atsushi OKAMURA, "An Equalization of PN-DSTBC for Concatenating with Spectral Precoding" in IEICE TRANSACTIONS on Fundamentals,
vol. E102-A, no. 3, pp. 544-552, March 2019, doi: 10.1587/transfun.E102.A.544.
Abstract: A diversity strategy is efficient to reduce the fluctuation of communication quality caused by fading. In order to further maintain the communication quality and improve the communication capacity, this paper proposes a two-dimensional diversity approach by serially-concatenating spectral precoding and power normalized-differential space time block coding (PN-DSTBC). Spectral precoding is able to take benefit from a frequency diversity effect without loss in spectral efficiency. In addition, PN-DSTBC is robust against serious phase noise in an extremely high frequency (EHF) band by exploiting a spatial diversity effect. However, there is a problem that a naive concatenation degrades the performance due to the imbalance of equivalent noise variances over transmit frequencies. Thus, we examine an equalized PN-DSTBC decoder as a modified approach to uniform equivalent noise variances over frequencies. The performance evaluation using computer simulations shows that the proposed modified approach yields the performance improvement at any modulation schemes and at any number of transmit frequencies. Furthermore, in the case of 64QAM and two transmit frequencies, the performance gain of the modified approach is 4dB larger than that of PN-DSTBC only at uncoded BER=10-4.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E102.A.544/_p
Salinan
@ARTICLE{e102-a_3_544,
author={Kanako YAMAGUCHI, Nicolas GRESSET, Hiroshi NISHIMOTO, Akihiro OKAZAKI, Hiroyasu SANO, Shusaku UMEDA, Kaoru TSUKAMOTO, Atsushi OKAMURA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={An Equalization of PN-DSTBC for Concatenating with Spectral Precoding},
year={2019},
volume={E102-A},
number={3},
pages={544-552},
abstract={A diversity strategy is efficient to reduce the fluctuation of communication quality caused by fading. In order to further maintain the communication quality and improve the communication capacity, this paper proposes a two-dimensional diversity approach by serially-concatenating spectral precoding and power normalized-differential space time block coding (PN-DSTBC). Spectral precoding is able to take benefit from a frequency diversity effect without loss in spectral efficiency. In addition, PN-DSTBC is robust against serious phase noise in an extremely high frequency (EHF) band by exploiting a spatial diversity effect. However, there is a problem that a naive concatenation degrades the performance due to the imbalance of equivalent noise variances over transmit frequencies. Thus, we examine an equalized PN-DSTBC decoder as a modified approach to uniform equivalent noise variances over frequencies. The performance evaluation using computer simulations shows that the proposed modified approach yields the performance improvement at any modulation schemes and at any number of transmit frequencies. Furthermore, in the case of 64QAM and two transmit frequencies, the performance gain of the modified approach is 4dB larger than that of PN-DSTBC only at uncoded BER=10-4.},
keywords={},
doi={10.1587/transfun.E102.A.544},
ISSN={1745-1337},
month={March},}
Salinan
TY - JOUR
TI - An Equalization of PN-DSTBC for Concatenating with Spectral Precoding
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 544
EP - 552
AU - Kanako YAMAGUCHI
AU - Nicolas GRESSET
AU - Hiroshi NISHIMOTO
AU - Akihiro OKAZAKI
AU - Hiroyasu SANO
AU - Shusaku UMEDA
AU - Kaoru TSUKAMOTO
AU - Atsushi OKAMURA
PY - 2019
DO - 10.1587/transfun.E102.A.544
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E102-A
IS - 3
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - March 2019
AB - A diversity strategy is efficient to reduce the fluctuation of communication quality caused by fading. In order to further maintain the communication quality and improve the communication capacity, this paper proposes a two-dimensional diversity approach by serially-concatenating spectral precoding and power normalized-differential space time block coding (PN-DSTBC). Spectral precoding is able to take benefit from a frequency diversity effect without loss in spectral efficiency. In addition, PN-DSTBC is robust against serious phase noise in an extremely high frequency (EHF) band by exploiting a spatial diversity effect. However, there is a problem that a naive concatenation degrades the performance due to the imbalance of equivalent noise variances over transmit frequencies. Thus, we examine an equalized PN-DSTBC decoder as a modified approach to uniform equivalent noise variances over frequencies. The performance evaluation using computer simulations shows that the proposed modified approach yields the performance improvement at any modulation schemes and at any number of transmit frequencies. Furthermore, in the case of 64QAM and two transmit frequencies, the performance gain of the modified approach is 4dB larger than that of PN-DSTBC only at uncoded BER=10-4.
ER -