TWO-STAGE PRECODING AND USER GROUPING FOR LARGE SCALE MULTIPLE-INPUT MULTIPLE-OUTPUT (MIMO) SYSTEMS

摘要

Methods are provided. A method includes determining respective weighted likelihoods corresponding to a plurality of users in a multiple-input multiple-output communication system. The method further includes forming a plurality of user groups from the plurality of users using an iterative K-means clustering technique applied to the plurality of users. The iterative K-means clustering technique is responsive to the respective weighted likelihoods.