The invention relates to an internet payment system based on return traffic. According to some examples, cell sizes for the base stations may be optimized by decomposing the cell size optimization into two approaches: a multi-stage energy allocation approach and an energy consumption minimization approach. The adhesive layer is applied to a first side of the backing layer to define a portion of the first major surface. Two or more electronic trades for the synthetic trading entity are automatically and electronically executed from on the one or more electronic trading exchanges to execute the synthetic trading entity.