Division of bit streams to produce spatial paths for multicarrier transmission

摘要

A device for bit-demultiplexing in a multicarrier MIMO communication system (e.g. precoded spatial multiplexing MIMO communication systems using adaptive OFDM), including a multicarrier MIMO transmitter and a multicarrier MIMO receiver. The multicarrier MIMO transmitter includes a demultiplexer and symbol mapper unit receiving an input bit stream and generating a plurality of symbol streams, each symbol stream being associated with a different transmission channel and including a plurality of data symbols, each data symbol being attributed to a different carrier; one or more multicarrier modulators generating at least two multicarrier modulated signals based on the symbol streams; and at least two transmit ports respectively transmitting the at least two multicarrier modulated signals, wherein a data throughput rate of each transmission channel is separately variable.

主权项

1. A Multiple Input Multiple Output (MIMO) Power Line Communication (PLC) transmitter for transmitting signals over a PLC network comprising:
demultiplexer circuitry configured to receive an input bit stream and to generate first and second split bit streams, wherein continuous sequences of consecutive bits of the input bit stream are alternately allocated to the first and second split bit streams; mapper circuitry configured to generate first and second symbol streams based on the first and second split bit streams, respectively, the first and second symbol streams being associated with first and second transmission channels, respectively, the first symbol stream comprising a plurality of first data symbols, each first data symbol being attributed to a different carrier of a plurality of carriers, the second symbol stream comprising a plurality of second data symbols, each second data symbol being attributed to a different carrier of the plurality of carriers, and the first and second data symbols attributed to a same carrier of the plurality of carriers representing a continuous bit sequence in the input bit stream; and at least two transmit ports configured to transmit at least two signals based on the first and second symbol streams via different combinations of wires in the PLC network.