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
Dalam makalah ini, kami membentangkan beberapa teknik penapisan domain transformasi kesatuan berdasarkan Transformasi Karhaunen-Loeve (KLT) untuk penolakan gangguan jalur sempit dalam sistem komunikasi CDMA. Sebab untuk memilih KLT ialah ia merupakan satu transformasi unitari optimum dalam erti kata pembungkusan tenaga gangguan jalur sempit. Akibatnya selepas menggunakan penjelmaan ini, sebahagian kecil isyarat yang diubah akan diganggu oleh gangguan jalur sempit, dan oleh itu mesti ditetapkan kepada sifar. Disebabkan ketiadaan transformasi optimum (KLT), beberapa transformasi suboptimum dipersembahkan dan prestasinya dibandingkan dengan kaedah transformasi konvensional yang terkenal seperti Transformasi Fourier Diskret (DFT) dan Transformasi Kosinus Diskret (DCT) dengan kehadiran kedua-dua Auto Regresif (AR) dan gangguan jalur sempit sinusoidal. Keputusan simulasi kami menunjukkan bahawa kaedah transformasi yang dicadangkan dengan ketara mengatasi kaedah konvensional.
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Salinan
Paeiz AZMI, Masoumeh NASIRI-KENARI, "Narrow-Band Interference Suppression in CDMA Spread-Spectrum Communication Systems Based on Sub-Optimum Unitary Transforms" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 1, pp. 239-246, January 2002, doi: .
Abstract: In this paper, we present several unitary transform-domain filtering techniques based on Karhaunen-Loeve Transform (KLT) for narrow-band interference rejection in CDMA communication systems. The reason for selecting the KLT is that it is an optimum unitary transform in the sense of packing the energy of the narrow-band interference. As a result after applying this transform, a small portion of the transformed signal would be interfered by the narrow-band interference, and thus must be set to zero. Due to unavailability of the optimum transform (KLT), several sub-optimum transforms are presented and their performances are compared with the well-known conventional transform methods such as Discrete Fourier Transform (DFT) and Discrete Cosine Transform (DCT) in the presence of both Auto Regressive (AR) and sinusoidal narrow-band interference. Our simulation results show that the proposed transform methods significantly outperform the conventional methods.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_1_239/_p
Salinan
@ARTICLE{e85-b_1_239,
author={Paeiz AZMI, Masoumeh NASIRI-KENARI, },
journal={IEICE TRANSACTIONS on Communications},
title={Narrow-Band Interference Suppression in CDMA Spread-Spectrum Communication Systems Based on Sub-Optimum Unitary Transforms},
year={2002},
volume={E85-B},
number={1},
pages={239-246},
abstract={In this paper, we present several unitary transform-domain filtering techniques based on Karhaunen-Loeve Transform (KLT) for narrow-band interference rejection in CDMA communication systems. The reason for selecting the KLT is that it is an optimum unitary transform in the sense of packing the energy of the narrow-band interference. As a result after applying this transform, a small portion of the transformed signal would be interfered by the narrow-band interference, and thus must be set to zero. Due to unavailability of the optimum transform (KLT), several sub-optimum transforms are presented and their performances are compared with the well-known conventional transform methods such as Discrete Fourier Transform (DFT) and Discrete Cosine Transform (DCT) in the presence of both Auto Regressive (AR) and sinusoidal narrow-band interference. Our simulation results show that the proposed transform methods significantly outperform the conventional methods.},
keywords={},
doi={},
ISSN={},
month={January},}
Salinan
TY - JOUR
TI - Narrow-Band Interference Suppression in CDMA Spread-Spectrum Communication Systems Based on Sub-Optimum Unitary Transforms
T2 - IEICE TRANSACTIONS on Communications
SP - 239
EP - 246
AU - Paeiz AZMI
AU - Masoumeh NASIRI-KENARI
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2002
AB - In this paper, we present several unitary transform-domain filtering techniques based on Karhaunen-Loeve Transform (KLT) for narrow-band interference rejection in CDMA communication systems. The reason for selecting the KLT is that it is an optimum unitary transform in the sense of packing the energy of the narrow-band interference. As a result after applying this transform, a small portion of the transformed signal would be interfered by the narrow-band interference, and thus must be set to zero. Due to unavailability of the optimum transform (KLT), several sub-optimum transforms are presented and their performances are compared with the well-known conventional transform methods such as Discrete Fourier Transform (DFT) and Discrete Cosine Transform (DCT) in the presence of both Auto Regressive (AR) and sinusoidal narrow-band interference. Our simulation results show that the proposed transform methods significantly outperform the conventional methods.
ER -