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".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Neste artigo, investigamos a taxa de erro de bit (BER) do OMC-CDMA (Acesso Múltiplo por Divisão de Código Multiportador Ortogonal) com esquema de Combinação de Razão Máxima (MRC) em canais de desvanecimento multipercurso Rayleigh de dois raios e comparamos o esquema MRC com o esquema Equal Gain Combing (EGC) de acordo não apenas com o número de usuários (M) e subportadoras (N) mas também a potência do sinal atrasado. Descobrimos que o esquema MRC supera o esquema EGC, e o BER do OMC-CDMA depende muito da potência do sinal atrasado. Se a potência do caminho atrasado for aumentada de 10% para 50%, em comparação com a potência do caminho direto, a capacidade CDMA diminuirá aproximadamente em 30% em BER= 10-3, N= 256 e SNR=15dB. Quando o sistema é fortemente carregado pelos usuários em parâmetros de grande decaimento, o desempenho do OMC-CDMA com o esquema MRC não pode aumentar significativamente o BER em comparação com o esquema EGC.
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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
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@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},}
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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 -