TD-SCDMA中结合块判决反馈和状态减少的序列估计的联合检测算法

将一个称之为块判决反馈的概念引入了TD-SCDMA的联合检测之中.基于该概念,提出了一种简单版本的和一种高性能的联合检测算法.该简单版本的联合检测算法与传统方法相比,性能相仿然而复杂度大大降低.该高性能检测器结合了块判决反馈和状态减少的序列估计算法,比传统方法复杂度略高然而大大提高了检测性能.该简单版本的联合检测算法适合于在移动终端上实现,高性能版适合于在基站实现.两种算法的性能都得到了仿真验证.

Combined Block Decision Feedback and Reduced State Sequence Estimation for Detection of TD-SCDMA

A new concept named Block Decision Feedback (BDF) was introduced to the Joint Detection (JD) of TD-SCDMA. Based on BDF, a simple version of JD and a high performance detector were proposed. The simple version has much less computational complexity than existing techniques while comparable performance. The high performance detector, combining the concept of BDF and Reduced State Sequence Estimation (RSSE), is a little more complex while it has much better performance than existing techniques. The simple version is suitable for mobile stations while the high performance detector is suitable for base stations. The performances of both are proved by simulations.