POWER DISTRIBUTION METHOD AND SYSTEM FOR MULTIPLE-INPUT MULTIPLE-OUTPUT SYSTEM

摘要

Disclosed are a power distribution method and system for a multiple-input multiple-output system. The method comprises: acquiring a channel matrix between a transmitting end and a receiving end, and the noise power of the receiving end; and according to the acquired channel matrix, the noise power of the receiving end, and the number of code words and the number of layers in a code word, allowing to employ inter-code word water-filling power distribution between at least two code words, wherein the water-filling power level corresponding to a code word with a large number of layers is greater than the water-filling power level corresponding to a code word with a small number of layers. In this way, the present invention can effectively improve the system capacity of a multiple-code word multiple-input multiple-output system, thereby improving the throughput performance of the system.