Outage-based cooperative resource competition game in LTE-A small cell networks

To alleviate greenhouse effect, high network energy efficiency (EE) has increasingly become an important research target in wireless communication systems. In this paper, the investigation for resource blocks (RBs) and transmit power allocation to mitigate co-tier interference in small cell networks is provided. In view of the drawbacks for considerable computational loadings and the acquisition for global channel information under centralized control, this paper proposes a framework based on a cooperative game to distributively perform resource allocation with only limited information. Moreover, the outage probability analyses for both perfect and imperfect channel state information at the transmitter (CSIT) are discussed in this paper. Furthermore, a regret-based learning algorithm for the proposed outage-based cooperative resource competition game (OCRC) to reach the correlated equilibrium (CE) is adapted. Simulation results verify the convergence in proposed OCRC scheme. Additionally, the proposed OCRC scheme can maintain and provide better EE performance compared to equal power allocation (EPA) scheme with imperfect CSIT.