CAJ | 학술논문

探讨了球解码算法(sphere decoder, SD)的检测次序及其在OFDM系统盲信号检测中的作用.提出了一种用于导出检测次序P的设计准则:最大化R中每一行的最小元素(maximizing the minimal row entry,MMRE).另外,还给出了相应的QR分解算法.仿真结果表明,MMRE可以大幅降低SD搜索的复杂度,性能优于已有的检测次序.
탐토료구해마산법(sphere decoder, SD)적검측차서급기재OFDM계통맹신호검측중적작용.제출료일충용우도출검측차서P적설계준칙:최대화R중매일행적최소원소(maximizing the minimal row entry,MMRE).령외,환급출료상응적QR분해산법.방진결과표명,MMRE가이대폭강저SD수색적복잡도,성능우우이유적검측차서.
The detection ordering for the sphere decoder (SD) and its application in the blind signal detection of the Orthogonal Frequency Division Multiplexing (OFDM) system were considered.To derive the detection ordering mechanism P, a novel principle was proposed,which maximizes the minimal row entry (MMRE) of R. At the same time, its corresponding QR factorization method was also presented. The MMRE mechanism can reduce the complexity greatly.The simulations prove the effectiveness of the MMRE.