基于ε逼近算法的CDMA盲自适应多用户检测

Blind adaptive multiuser detection of CDMA using the ε-approximation algorithms

把码分多址通信系统的盲多用户信号检测问题转化为一个带约束的二次规划问题,利用二次规划问题的e逼近算法给出了一种新的CDMA盲自适应多用户检测方法,仿真结果表明,该算法不但具有较强的多址干扰抑制性能,而且具有很快的收敛速度,对于时变信道特别适用。

This paper changes the problem of blind multiuser detection of the communication system of CDMA to a quadratic programming problem with some constraints, and gives a new method of blind adaptive multiuser detection for CDMA by solving the quadratic programming problem using the e-approximation algorithms. The simulation results show that the proposed method not only possesses stronger capability of suppressing interference, but also converges very quickly which implies that it is especially suitable for time varying channels.