【摘要】 在介绍MC CDMA系统下行链路上所采用的多级检测 (MSD)技术及其理论性能的基础上 ,提出一种新的改进了的多级检测技术 (IMSD) ,同时对这两种检测技术进行了计算机模拟 ,并对结果进行了比较。结果表明 ,IMSD与MSD复杂度相似 ,但IMSD性能改善了 1～ 2dB。更多还原

【Abstract】 This paper introduces the Multi-Stage Detection (MSD) technique in the down link of the MC-CDMA system and its theory performance.Based on the MSD technique,a new improved Multi-Stage Detection (IMSD) technique is presented.The performance comparison between the two detection techniques is obtained by computer simulations.Simulation results show that IMSD and MSD have the same complexity,but IMSD gives a performance improvement of 1～2 dB.更多还原