International Journal of Innovative Research in Science, Engineering and Technology (IJIRSET)
Cooperation is the process of working together, opposite of working separately in competition. This paper proposes the cooperative multiuser OFDMA systems with subcarrier resource allocation technique. A particular subcarrier resource allocation approach about which this paper proposes is a method, based on nodes that transmit and receive on adjacent OFDM subcarriers simultaneously. They propose a transceiver structure to reduce the interference between transmitting subcarriers and receiving subcarriers. The transceiver structure includes QPSK (Quadrature Phase Shift Keying).