| 摘要 |
<p>Disclosed is a distributed coordinated multi-cell beamforming method applied to coordinated multi-point transmission. The method first provides an improved distributed iteration beamforming algorithm for a MISO IC scenario, and in the algorithm, an SINR is selected as a judging standard to carry out initialization; and then, the problem of limitation optimization of a maximum virtual SINR when certain interference is caused for another user is solved in iteration mode; and then, based on a perspective of layered channels, a heuristic power distribution mechanism is used for popularizing the algorithm to a multi-cell data sharing scenario. By means of the distributed coordinated multi-cell beamforming method applied to coordinated multi-point transmission, only local channel state information is used for carrying out beamforming design, an amount of required feedback information is reduced, and performance better than that of a maximum ratio sending method and a zero forcing method is obtained. The method can be applied to downlink MU-MIMO transmission of a coordinated multi-point transmission system.</p> |
