
Recently, energy efficiency (EE) has drawn more and more attentions due to the need for green communication. It is well-known that the base station (BS) sleeping strategy and radio resource allocation can effectively improve the EE for the wireless communication networks. Meanwhile, renewable energy is important to decrease the carbon emissions which is also subject to the need for green communication. In this paper, we jointly optimize the BS sleeping strategy, resource allocation and renewable energy procurement scheme to maximize the profit of the network operators and minimize the carbon emissions. We formulate the joint optimization problem as a mixed integer programming problem which is difficult to tackle in general. In the first, we adopt the bi-velocity discrete particle swarm optimization (BVDPSO) algorithm to optimize the BS sleeping strategy. When the BS sleeping strategy is fixed, the original optimization problem only consists of the power allocation, subcarrier assignment and energy procurement which is also difficult to solve due to the combinatorial nature of the subcarrier assignment. Then, we propose an optimal algorithm based on Lagrange dual domain method to optimize the power allocation, subcarrier assignment and energy procurement. Numerical results illustrate the effectiveness of our proposed scheme and algorithm.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 2 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
