Differential space-time block coding apparatus with high transmission rate and method thereof

摘要

Disclosed is a differential space-time block coding apparatus with a high transmission rate in a wireless communication system employing multiple transmit antennas and a method thereof. The differential space-time block coding method includes the steps of, when elements of a transmission matrix B �¢ v 43 are transmitted in a predetermined block (a v th block) through a predetermined transmit antenna at a predetermined time, modulating a symbol S v of inputted binary data to a symbol S v+1 , creating a matrix S �¢ v+1 44 in a block (a (v+1) th block) following the predetermined block by substituting the modulated symbol for the matrix P 44 , and then, in order to perform a differential encoding function, multiplying the matrix B �¢ v 43 by the matrix S �¢ v+1 44 so as to calculate a new matrix B �¢ v+1 43 to be transmitted in the (v+1) th block.