Abstract
This invention discloses a multicarrier communication system that includes a transmitting equipment and a receiving equipment. According to a timing period, the transmitting equipment processes multiple original symbols for transmission on multiple subcarrier channels, and the receiving equipment processes and detects multiple received symbols from the multiple subcarrier channels. During a time frame of data transmission, the initial three of the original symbols for each of the subcarrier channels are three pilot symbols, forming a preamble. The three preambles of every adjacent three of the subcarrier channels form a preamble unit. All the pilot symbols of the preamble unit are expressed as a 3x3 matrix. When the center pilot symbol of the preamble unit is normalized to 1 or j, the matrix is. A channel estimation method for the multicarrier communication system is also disclosed.