Outage Performance of Rateless Codes Based Two-Way Relay Scheme Using Successive Interference Cancellation

In this paper, we propose a Rateless codes based two-way relay scheme. In the proposed scheme, two sources exchange their encoded packets through a common relay. During the first time slot, both sources transmit encoded packets to the relay which will use successive interference cancellation technique to decode the two received encoded packets. Next, the relay will perform an XOR operation on the two encoded packets, and will send the XOR-ed packet to both sources in the second time slot. After the data transmission ends, the sources can recover the original data if they receive a sufficient number of encoded packets. This paper evaluates outage probability for each source and system outage probability over Rayleigh fading channels through both analysis and simulations.