  This paper investigates an error covariance matrix splitting technique for
multiuser multiple input and multiple output (MIMO) interference downlink
channel. Most of the related work has thus far considered the traditional error
covariance matrix which has not been well-shaped for maximizing the system
capacity. Thus, we split and propose a new iterative error covariance matrix to
mitigate the system error and maximize the system capacity in this paper.
Numerical results illustrate that our proposed method is strictly better than
the traditional method.
