A Novel 2-D OFDM-DS-CDMA Receiver with Frequency-Time Spreading

作者：Chen Joy Iong Zong^*

来源：IEICE - Transactions on Communications, 2012, E95B(5): 1722-1729.

DOI：10.1587/transcom.E95.B.1722

• 2-D receiver correlated Nakagami-m
• OFDM-DS-CDMA system
• fading parameter

This paper presents a novel 2-D (2-dimension) receiver that adopts the reception scheme to promote OFDM-DS-CDMA (orthogonal frequency division multiplexing multi-carrier coded-division multiple-access) system performance. The system model includes spread coding and a system block diagram of the 2-D receiver shown graphically with 3-D (three dimensions) plots. The analytical calculation of system performance for an OFDM-DS-CDMA system combined with the proposed receiver equipment is investigated. To evaluate the results from the channel fading effect is considered over the correlated fading environments. The correlated-Nakagami-m statistical distribution is taken into account in the evaluation. The results show that the number of users, the number of subcarriers and the fading channel correlation generally affect OFDM-DS-CDMA systems. The system is also influenced by the Doppler shift and the signal propagation environment (fading parameter).

• 出版日期2012-5