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 multicarrier MIMO transmitter comprising:
demultiplexer and symbol mapper circuitry configured to receive an input bit stream and to generate a plurality of symbol streams, each symbol stream being associated with a different transmission channel and comprising a plurality of data symbols, each data symbol being attributed to a different carrier; one or more multicarrier modulators to generate at least two multicarrier modulated signals based on the symbol streams; and at least two power line communication (PLC) tramsmit ports, wherein each of the transmit ports is respectively configured to transmit one or more of the at least two multicarrier modulated signals via conductors included in an electric power transmission system, wherein a data throughput rate of each transmission channel is separately variable, the demultiplexer and symbol mapper circuitry is configured to split the input bit stream into a plurality of split bit streams and to generate each of the symbol streams based on a different one of the split bit streams, and the input stream comprises at least two sections, each section comprising at least two groups of bits, each group of the at least two groups being demultiplexed to another one of the split bit streams and being given by one or more consecutive bits.