A Physical-network-coding-based amplify and forward cooperation scheme

Amplify and forward is a classical basic user cooperation scheme. In this paper, we propose a Physical-network-coding-based amplify and forward scheme. In time slot 2, users transmit the combinations of the partner´s message and their own message through pseudo physical-layer network coding. This is the greater different from the classical scheme, where the user only transmits the partner´s bits in cooperation. An outage probability analysis showing the improved performance is carried out, and computer simulations results are shown to agree with the analytical results.