业界最快的联合检测算法，IEEE TCOM paper，真正的原创核心技术 - 通信人家园

时间: 2012-11-10 19:10

作者: 杨学志 标题: 业界最快的联合检测算法，IEEE TCOM paper，真正的原创核心技术

Abstract—In this paper, a novel frequency domain multi-user detector is proposed for a time division-code division multiple access (TD-CDMA) up-link. Unlike conventional frequency domain detectors, the proposed detector first transforms the system matrix of TD-CDMA systems into a circulant matrix by cyclic truncation. It subsequently uses a new method to convert the circulant matrix into a frequency domain block diagonalized matrix through discrete Fourier transforms and permutations. Therefore, the proposed detector can utilize the channel frequency domain coherence to further decrease its computational complexity with a controlled performance loss. Moreover, a novel approach is proposed to calculate the frequency domain correlation matrix and matched filter. With the help of this novel approach, the proposed detector expresses significant complexity advantage over other frequency domain detectors for a real TDCDMA system in a short-time-dispersive channel.

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