【摘要】 提出一种基于优化多带复小波变换的MC-CDMA系统,研究了其在多径瑞利衰落下的性能。并采用TDD模式下的简化接收机结构和实现复杂度,增强了系统的抗多径和多址干扰(MAI)的能力。理论分析和仿真结果均表明该系统具有可行性,有着良好的抗衰落能力。更多还原

【Abstract】 We propose a MC-CDMA system based on the optimized multiband complex wavelet transform (MBCWT),investigate the system performance in multipath Rayleigh fading channel. Meantime, we adopt the pre-equalization technique under the TDD mode to simplify the receiver architecture and realization complexity, the system capability to combat multi-access interference (MAI) and multipath interference is strengthened. Theoretical analysis and computer simulation results all show that the proposed system can be implemented and have the superior capability against the fading.更多还原