A type of fast decoding method, apparatus and OvXDM system applied to an OvXDM system

摘要

The present invention discloses a fast decoding method, apparatus, and OvXDM system applied to a kind of OvXDM system. The above method does not need to traverse all the state nodes and their extension paths during the decoding process, and selects and extends only some state nodes and paths through sorting. Therefore, the decoding complexity can be greatly reduced, and at the same time, And its decoding complexity is not rapidly increased with the increase of the superposition multiplexing order K as in the conventional decoding method, and thus resolves the contradictory demand for spectral efficiency, decoding complexity and decoding efficiency.