System and Method for Open-Loop MIMO Communications in a SCMA Communications System

摘要

A method for transmitting data includes mapping a first coded information bit stream intended for a first transmit antenna onto at least one first spreading sequence of a plurality of first spreading sequences to generate a first data stream, mapping a second coded information bit stream intended for a second transmit antenna onto at least one second spreading sequence of a plurality of second spreading sequences to generate a second data stream. The method also includes transmitting the first data stream and the second data stream on respective transmit antennas.

主权项

1. A method for transmitting data comprising:
selecting, by a transmitting device, a plurality of spreading sequences in accordance with a communications channel; mapping, by a transmitting device, a plurality of portions of a coded information bit stream onto respective ones of the plurality of spreading sequences to generate a plurality of data streams; multiplexing, by the transmitting device, the plurality of data streams into a combined communications stream; and transmitting, by the transmitting device, the combined communications stream over the communications channel.