Apparatus and method for transmitting/receiving a signal in a communication system

摘要

An apparatus for transmitting a signal in a communication system includes: M_T number of transmission antennas; a space-time encoder for generating M_T number of transmission symbol streams by space-time encoding M_T number of modulation symbol streams in accordance with a space-time encoding scheme determined by a predetermined control, and transmitting each of the M_T transmission symbol streams through a corresponding transmission antenna from among the M_T transmission antennas; and a controller for determining the space-time encoding scheme based on an iteration number of transmission, which indicates the number of times by which an information data bit stream corresponding to the M_T modulation symbol streams has been transmitted.