MULTIPLE OUTPUT MULTICARRIER TRANSMITTER AND METHODS FOR SPATIAL INTERLEAVING A PLURALITY OF SPATIAL STREAMS

摘要

A multicarrier transmitter performs bit-interleaving suitable for transmitting more than one spatial stream over a multicarrier communication channel. The multicarrier transmitter may include a bit-grouping shifter to shift QAM symbol-bit groupings of a spatial stream among subcarriers of the multicarrier communications signal, and a bit-position permuter to rotate bits among bit positions within subgroupings of the QAM symbol-bit groupings of the second spatial system.