end-to-end communication. The $\minpow$ relay selection policy in terms of outage probability and diversity, is analyzed by modeling the evolution of the relay buffers as a MC. The construction of the state transition matrix and the related steady state of the MC are studied; then, the derivation of the outage probability is presented. The contribution of this work is twofold.

-   Buffer-aided relays and interference cancellation are combined for the first time, thus decoupling the necessity of the receiving relay to transmit in the next time slot, even if the channel is in outage. Hence, an extra degree of freedom is obtained for choosing which relay to transmit, so that IRI cancellation is also achieved, if it is feasible. Also, the current channel state is the deciding factor in choosing a relay rather than the prediction of the next channel state.

-   Power adjustment is also included in our scheme. In this way, the total energy expenditure in the network is minimized, as well as the inter-relay interference, thus reducing the outage probability of the network.

The $\minpow$ relay selection policy outperforms the current state-of-the-art schemes, with which it is compared. The outage, throughput and energy efficiency performance metrics considered 