High-order modulation coded cooperation method

• Main Authors: HAN XI, LI LIN, WANG QIUCAI, YUAN CHAOWEI, ZHAO WEI, TIAN XINJI, HU ZIWEI, LI MEILING
• Format: Patent
• Language: Chinese; English
• Published: 13.04.2011
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a high-order modulation coded cooperation method. In the method, at the first time slot when a coded cooperation system transmits data, each user codes the bit information to be transmitted, and the information is simultaneously transmitted to a cooperation partner and a destination terminal after being modulated and mapped by binary phase shift keying (BPSK); and if the cooperation partner correctly decodes the data received at the first time slot, the cooperation partner recodes the decoded bit information at the second time slot, and the data are transmitted to the destination terminal after being modulated and mapped by 8PSK or 16QAM (quadrature amplitude modulation). Because the decoded data are recoded by the system at the second time slot, the data transmitted at the second time slot not only comprise the redundant information after coding but also comprise the bit information. The invention overcomes the defect of reliability reduction of the system caused by transmitting the d