Green resource allocation in relay-assisted multicarrier IC networks considering circuit dissipated power

In this paper, the issue of non-cooperative, green resource allocation in a multicarrier relay-assisted interference channel is considered. The energy efficiency of a given terminal is defined as the ratio between the throughput of that terminal and the consumed power. Unlike many previous contributions, as far as the computation of the consumed power is concerned, not only the transmit power, but also the dissipated circuit power which is needed to operate the device is taken into account. First, a non-cooperative power control game is devised, which admits a unique Nash equilibrium, and whose best-response-dynamics is guaranteed to converge to the unique equilibrium. For the sake of comparison, a cooperative power control algorithm is also devised. Next, the theory of potential games will be employed to address the more general issue of joint subcarrier and power control for energy efficiency maximization, devising a non-cooperative game whose best-response dynamics is guaranteed to converge to a Nash equilibrium. Finally, numerical results are provided to show the merits of the proposed algorithms.