The invention discloses an energy efficiency optimization based cooperative communication
system resource allocation method, and belongs to the technical field of cooperative communication. The energy efficiency optimization based cooperative communication
system resource allocation method comprises the steps of establishing a
system model, analyzing a system scene, summarizing problems and solving an
optimization problem by using a convex optimization method. The energy efficiency optimization based cooperative communication system
resource allocation method gives consideration to system energy efficiency in the presence of
time average; a
time average based energy efficiency
algorithm not only considers the performance of a current system, but also gives consideration to the system performance at the moments before the current moment, so that the fairness of system resource allocation is ensured, a mathematical expression of user fairness is provided; meanwhile, a simpler power sub-carrier adaptive allocation formula can be obtained tactfully through operation. According to the energy efficiency optimization based cooperative communication system resource
allocation method, the
optimization problem is divided into two sub-problems to be solved, power allocation on the sub-carrier is obtained through cyclical iteration, not only the
current channel state information but also the former channel state are considered in the sub-carrier allocation process, the
algorithm complexity of the energy efficiency optimization based cooperative communication system resource
allocation method is reduced through tactful conversion, and the mathematical expression of the complexity is provided. The energy efficiency optimization based cooperative communication system resource
allocation method is rational in
algorithm design and easy to implement.