Coded Cooperation Protocol Utilizing Superposition Modulation for Half-Duplex Scenario
Koji Ishii · 2007
In this paper, we design a new turbo-based coded cooperation scheme for half-duplex scenario utilizing superposition modulation. The cooperative diversity utilizing superposition modulation which is classified into decode-and-forward protocol has been proposed. We extend this system to coded-cooperation protocol in order to improve the performance. In the proposed system, the transmitting node encodes the information based on a multiple-turbo code and transmits the signal superposed its own information with other node's one. While, using the signals at two continuous time slots, the destination node can iteratively decode the signal. Moreover, we apply the iterative detection to this system. As the results, the proposed system achieves better performance and can get closer to the dirty paper coding theory.