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
Cet article effectue une évaluation des performances et effectue une simulation pour un système d'accès multiple par répartition en code (CDMA) lorsque les bandes de canaux de plusieurs CDMA/DSSS voisins se chevauchent dans le domaine temporel. On suppose que tous les systèmes adoptent la technique DSSS (Direct Sequence Spread Spectrum) et sont modulés BPSK par les différentes fréquences porteuses. Le contrôle automatique de la puissance (APC) est également appliqué dans le système brouillé, de sorte que le récepteur reçoive la même puissance de tous les utilisateurs. Sans généralité de perte, un canal de bruit gaussien blanc additif (AWGN) est également supposé lors de l'analyse. Dans cet article, la solution analytique du rapport signal sur bruit (SNR) est d'abord dérivée dans laquelle les deux systèmes CDMA sont modulés par des fréquences porteuses différentes. On a les résultats par simulation avec Δ f = 0 et Δ f = 1 MHz, respectivement. Cette analyse convient aux cas généraux ; et les résultats montrent d'excellentes performances de calcul. En particulier, le résultat est très proche de celui de Pursley, lorsque les systèmes ont la même longueur de code sans différence de porteuse.
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Ming-Huei CHEN, Bih-Hwang LEE, Chwan-Chia WU, "Performance Evaluation for Multiple DSSS Systems with Channel Bands Overlapped" in IEICE TRANSACTIONS on Fundamentals,
vol. E84-A, no. 5, pp. 1315-1325, May 2001, doi: .
Abstract: This paper conducts performance evaluation and performs simulation for a code division multiple access (CDMA) system when channel bands of multiple neighboring CDMA/DSSS are overlapped in time domain. It is assumed that all systems adopt direct-sequence spread-spectrum (DSSS) technique and are BPSK modulated by the different carrier frequencies. Automatic power control (APC) is also applied in the interfered system such that the receiver gets the same power from all users. Without loss generality, an additive white Gaussian noise (AWGN) channel is also assumed during analysis. In this paper, the analytic solution of the signal to noise ratio (SNR) is first derived in which both CDMA systems are modulated by different carrier frequencies. We have the results by simulation with Δ f = 0 and Δ f = 1 MHz, respectively. This analysis is good for general cases; and the results show an excellent computational performance. In particular, the result is very close to Pursley's result, when the systems have the same code length with no carrier difference.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e84-a_5_1315/_p
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@ARTICLE{e84-a_5_1315,
author={Ming-Huei CHEN, Bih-Hwang LEE, Chwan-Chia WU, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Performance Evaluation for Multiple DSSS Systems with Channel Bands Overlapped},
year={2001},
volume={E84-A},
number={5},
pages={1315-1325},
abstract={This paper conducts performance evaluation and performs simulation for a code division multiple access (CDMA) system when channel bands of multiple neighboring CDMA/DSSS are overlapped in time domain. It is assumed that all systems adopt direct-sequence spread-spectrum (DSSS) technique and are BPSK modulated by the different carrier frequencies. Automatic power control (APC) is also applied in the interfered system such that the receiver gets the same power from all users. Without loss generality, an additive white Gaussian noise (AWGN) channel is also assumed during analysis. In this paper, the analytic solution of the signal to noise ratio (SNR) is first derived in which both CDMA systems are modulated by different carrier frequencies. We have the results by simulation with Δ f = 0 and Δ f = 1 MHz, respectively. This analysis is good for general cases; and the results show an excellent computational performance. In particular, the result is very close to Pursley's result, when the systems have the same code length with no carrier difference.},
keywords={},
doi={},
ISSN={},
month={May},}
Copier
TY - JOUR
TI - Performance Evaluation for Multiple DSSS Systems with Channel Bands Overlapped
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1315
EP - 1325
AU - Ming-Huei CHEN
AU - Bih-Hwang LEE
AU - Chwan-Chia WU
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E84-A
IS - 5
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - May 2001
AB - This paper conducts performance evaluation and performs simulation for a code division multiple access (CDMA) system when channel bands of multiple neighboring CDMA/DSSS are overlapped in time domain. It is assumed that all systems adopt direct-sequence spread-spectrum (DSSS) technique and are BPSK modulated by the different carrier frequencies. Automatic power control (APC) is also applied in the interfered system such that the receiver gets the same power from all users. Without loss generality, an additive white Gaussian noise (AWGN) channel is also assumed during analysis. In this paper, the analytic solution of the signal to noise ratio (SNR) is first derived in which both CDMA systems are modulated by different carrier frequencies. We have the results by simulation with Δ f = 0 and Δ f = 1 MHz, respectively. This analysis is good for general cases; and the results show an excellent computational performance. In particular, the result is very close to Pursley's result, when the systems have the same code length with no carrier difference.
ER -