Energy efficiency-based downlink resource allocation in cognitive small cell networks

Energy efficiency-based downlink resource allocation in cognitive small cell networks

Blog Article

Joint Notebook Cover downlink spectrum resource block(SRB) and power allocation was studied based on OFDMA n cog-nitive small cell networks.In a distributed framework, small cell base stations (SCBS) could share free spectrum re-sources with open access to maximize their energy efficiency (EE) respectively.The competition among SCBS made the dynamic resources allocation problem be modeled as a non-cooperative game.It was non-convex optimal to op-timize the EE in a fractional form under multiple interference constraints.

The maximization problem was transmitted into an equivalent problem in subtractive form which could be Blu-ray Players solved from the sequential and parallel iteration points of view.After obtaining the SRB allocation strategies, the master game could be re-modeled as equivalent sub-games for solving the transmission power more easily.Simulation results show the proposed algorithm can converge to a Nash equilibrium and effectively improve system resources utilization and EE in interference-limited communication environments.