Patent ID: 8238463

Claim:
A method of processing a received signal having a first plurality of subcarriers from a first transmitter carried over a first channel and a second plurality of subcarriers from a second transmitter carried over a second channel, wherein the first plurality of subcarriers comprises a first plurality of subcarrier pilots and the second plurality of subcarriers comprises a second plurality of subcarrier pilots, the method comprising: estimating a first impairment parameter for the first plurality of subcarrier pilots; estimating a second impairment parameter for the second plurality of subcarrier pilots; removing the first estimated impairment parameter from at least one of the first plurality of subcarrier pilots; removing the second estimated impairment parameter from at least one of the second plurality of subcarrier pilots; estimating the first channel using the at least one of the first plurality of subcarrier pilots with the impairment parameter removed; estimating the second channel using the at least of one of the second plurality of subcarrier pilots with the impairment parameter removed; and decoding the received signal according to Alamouti space-time based coding using the channel estimation of the first channel and the channel estimation of the second channel.