Method and device for soft-output detection in multiple antenna communication systems

摘要

An embodiment of a method and device for detecting a signal and generating bit soft-output of a multiple-input multiple-output system is provided.The device includes at least one channel estimates pre-processing unit, one received vector processing and one detection and soft-output generation unit.The pre-processing unit calculates multiple QR Decompositions of the input channel estimation matrix.The detection and soft-output generation unit computes near optimal bit soft output information with a deterministic complexity and latency.It may implement a reduced complexity search method.Globally, embodiments of the invention may allow achieving low complexity, high data rate, scalability in terms of the dimension of the MIMO system and flexibility versus the supported modulation order, all potentially key factors for most MIMO wireless transmission applications.