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 kertas kerja ini, kami menyiasat kadar ralat bit (BER) bagi OMC-CDMA (Orthogonal Multi-Carrier-Code Division Multiple Access) dengan skim Penggabungan Nisbah Maksimum (MRC) pada saluran pudar berbilang laluan Rayleigh dua sinar, dan bandingkan skema MRC dengan skim Equal Gain Combing (EGC) mengikut bukan sahaja bilangan pengguna (M) dan subcarrier (N) tetapi juga kuasa isyarat tertunda. Kami mendapati bahawa skim MRC mengatasi skim EGC, dan BER OMC-CDMA sangat bergantung pada kuasa isyarat tertunda. Jika kuasa laluan tertunda dinaikkan daripada 10% kepada 50%, berbanding dengan kuasa laluan terus, kapasiti CDMA berkurangan kira-kira 30% pada BER= 10-3, N= 256 dan SNR=15 dB. Apabila sistem dimuatkan dengan banyak oleh pengguna dalam parameter pereputan yang besar, prestasi OMC-CDMA dengan skim BSMM tidak dapat meningkatkan BER dengan ketara berbanding dengan skim EGC.
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Salinan
Sungdon MOON, Gwangzeen KO, Kiseon KIM, "Orthogonal Multicarrier-CDMA Technique with MRC Scheme on Two-Ray Multipath Fading Channels" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 6, pp. 1683-1686, June 2001, doi: .
Abstract: In this paper, we investigate the bit error rate (BER) of OMC-CDMA (Orthogonal Multi-Carrier-Code Division Multiple Access) with Maximal Ratio Combining (MRC) scheme on two-ray Rayleigh multipath fading channels, and compare the MRC scheme with the Equal Gain Combing (EGC) scheme according to not only the number of users (M) and subcarriers (N) but also the power of delayed signal. We found that the MRC scheme outperforms the EGC scheme, and the BER of OMC-CDMA depends greatly on the power of delayed signal. If the delayed path power is increased from 10% to 50%, as compared with the direct path power, CDMA capacity is decreased approximately by 30% at BER=10-3, N=256 and SNR=15 dB. When the system is heavily loaded by users in large decaying parameter, the performance of OMC-CDMA with the MRC scheme can not increase the BER significantly compared to that with the EGC scheme.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_6_1683/_p
Salinan
@ARTICLE{e84-b_6_1683,
author={Sungdon MOON, Gwangzeen KO, Kiseon KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={Orthogonal Multicarrier-CDMA Technique with MRC Scheme on Two-Ray Multipath Fading Channels},
year={2001},
volume={E84-B},
number={6},
pages={1683-1686},
abstract={In this paper, we investigate the bit error rate (BER) of OMC-CDMA (Orthogonal Multi-Carrier-Code Division Multiple Access) with Maximal Ratio Combining (MRC) scheme on two-ray Rayleigh multipath fading channels, and compare the MRC scheme with the Equal Gain Combing (EGC) scheme according to not only the number of users (M) and subcarriers (N) but also the power of delayed signal. We found that the MRC scheme outperforms the EGC scheme, and the BER of OMC-CDMA depends greatly on the power of delayed signal. If the delayed path power is increased from 10% to 50%, as compared with the direct path power, CDMA capacity is decreased approximately by 30% at BER=10-3, N=256 and SNR=15 dB. When the system is heavily loaded by users in large decaying parameter, the performance of OMC-CDMA with the MRC scheme can not increase the BER significantly compared to that with the EGC scheme.},
keywords={},
doi={},
ISSN={},
month={June},}
Salinan
TY - JOUR
TI - Orthogonal Multicarrier-CDMA Technique with MRC Scheme on Two-Ray Multipath Fading Channels
T2 - IEICE TRANSACTIONS on Communications
SP - 1683
EP - 1686
AU - Sungdon MOON
AU - Gwangzeen KO
AU - Kiseon KIM
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 6
JA - IEICE TRANSACTIONS on Communications
Y1 - June 2001
AB - In this paper, we investigate the bit error rate (BER) of OMC-CDMA (Orthogonal Multi-Carrier-Code Division Multiple Access) with Maximal Ratio Combining (MRC) scheme on two-ray Rayleigh multipath fading channels, and compare the MRC scheme with the Equal Gain Combing (EGC) scheme according to not only the number of users (M) and subcarriers (N) but also the power of delayed signal. We found that the MRC scheme outperforms the EGC scheme, and the BER of OMC-CDMA depends greatly on the power of delayed signal. If the delayed path power is increased from 10% to 50%, as compared with the direct path power, CDMA capacity is decreased approximately by 30% at BER=10-3, N=256 and SNR=15 dB. When the system is heavily loaded by users in large decaying parameter, the performance of OMC-CDMA with the MRC scheme can not increase the BER significantly compared to that with the EGC scheme.
ER -