Transmit diversity technique based on channel randomization for orthogonal frequency division multiplexing systems

A method comprising:

• mapping a plurality of data streams to a plurality of transmit antennas of a physical layer device, wherein each transmit antenna is associated with a respective radio frequency channel of a plurality of radio frequency channels;
• receiving a first plurality of signals generated based on the plurality of data streams;
• applying a first complex gain to each of the first plurality of signals, wherein the first complex gain corresponds to a first transmit antenna of the plurality of transmit antennas;
• receiving a second plurality of signals generated based on the plurality of data streams;
• and
• applying a second complex gain to each of the second plurality of signals, wherein the second complex gain corresponds to a second transmit antenna of the plurality of transmit antennas,
• wherein the second plurality of signals is different than the first plurality of signals, and
• wherein the second complex gain is different than the first complex gain.

A computer program tangibly stored on a non-transitory computer readable medium, the computer program being executable by a processor and comprising instructions for:

• mapping a plurality of data streams to a plurality of transmit antennas of a physical layer device, wherein each transmit antenna is associated with a respective radio frequency channel of a plurality of radio frequency channels;
• receiving a first plurality of signals generated based on the plurality of data streams;
• applying a first complex gain to each of the first plurality of signals, wherein the first complex gain corresponds to a first transmit antenna of the plurality of transmit antennas;
• receiving a second plurality of signals generated based on the plurality of data streams;
• and
• applying a second complex gain to each of the second plurality of signals, wherein the second complex gain corresponds to a second transmit antenna of the plurality of transmit antennas,
• wherein the second plurality of signals is different than the first plurality of signals, and
• wherein the second complex gain is different than the first complex gain.