Abstract:

In order to break through the energy limitation of the relay in the coded cooperation system, a coded cooperation scheme with the energy harvesting is investigated. Firstly, a repeataccumulate (RA)coded cooperation with energy harvesting is proposed, and the outage probability of the system is further analyzed. Then, the joint paritycheck matrix corresponding to the RA codes employed by the source and relay is deduced. By jointly design the joint paritycheck matrix, all the two types of girth4 cycles in it are cancelled. Theoretical analysis and numerical simulations show that the proposed scheme sharply lowers the outage probability compared with the traditional point to point system under the same power condition. Furthermore, the bit error rate of the system employing jointly the designed RA codes is better than that of random LDPC codes.