Abstract
The capacity of Multiple-Input Multiple-Output networks (MIMO) is seriously degraded by interference. Many solutions have been given to overcome this problem, such as network MIMO and maximum signal to leakage plus noise ratio (max-SLNR). In this letter, a downlink distributed precoding method is proposed to nullify the intra-cell interference and mitigate the negative effect on other cell users. This method can keep the merits of network MIMO and max-SLNR while overcoming their shortcomings. Numerical results show that the proposed precoding method outperforms Block Diagonalization (BD), max-SLNR and Block Diagonalization with Other Cell Interference (BD-OCI).
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