基于复小波包的MC-CDMA系统及上行链路性能分析  

Uplink Performance Analysis of Complex Wavelet Packet based MC-CDMA System

作　　者：虞湘宾[1] 毕光国[1] 吴业兵 

机构地区：[1]东南大学无线电系移动通信国家重点实验室,江苏南京210096 [2]南京富士通计算机设备有限公司,江苏南京210028

出　　处：《电路与系统学报》2004年第4期5-8,共4页Journal of Circuits and Systems

摘　　要：文章在分析多载波扩频码分多址的基础上,利用优化生成的复小波包及变换,研究了一种基于复小波包的多载波CDMA系统在多径瑞利衰落环境下的上行链路性能。仿真结果表明该系统要优于通常的MC-CDMA系统和基于实小波包变换的MC-CDMA系统,具有良好的抗衰落能力。并采用多天线分集接收技术进一步完善系统性能,从而增强了系统抗多径干扰和多址干扰的能力,且得到了更低的误码率。On the basis of analyzing the principle of MC-CDMA, by means of generating the optimized complex wavelet packet and its transform, the uplink performance of MC-CDMA system based on the complex wavelet packet in multipath Rayleigh fading channel is investigated. Simulation results show that the proposed system outperforms the conventional MC-CDMA and real wavelet packet based MC-CDMA, with superior capability against the fading. Meantime, multi-antennas diversity receiver technique is exploited to improve the system performance further as to strengthen the system capability against multi-access interference (MAI) and multipath interference for lower bit error rate (BER).

关 键 词：复小波包 多载波技术 空间分集接收合并 码分多址 

分 类 号：TN914.53[电子电信—通信与信息系统]