TY - GEN
T1 - Optimizing cell size for energy saving in cellular networks with hybrid energy supplies
AU - Han, Tao
AU - Ansari, Nirwan
PY - 2012
Y1 - 2012
N2 - Green communications has received much attention recently. For cellular networks, the base stations (BSs) account for more than 50 percent of the energy consumption of the networks. Therefore, reducing the power consumption of BSs is crucial to achieve green cellular networks. In this paper, we optimize the energy utilization in cellular networks whose BSs are powered with both regular energy from the grid and the renewable energy. We minimize the on-grid energy consumption of BSs by adapting their cell sizes. The cell size optimization problem is NP-hard. We divide the problem into two subproblems: the multi-stage energy allocation problem and energy consumption minimization problem. We propose an energy allocation policy and an approximation algorithm to solve these subproblems, respectively, and subsequently solve the cell size optimization problem. Simulation results demonstrate that the proposed solution achieves significant energy savings.
AB - Green communications has received much attention recently. For cellular networks, the base stations (BSs) account for more than 50 percent of the energy consumption of the networks. Therefore, reducing the power consumption of BSs is crucial to achieve green cellular networks. In this paper, we optimize the energy utilization in cellular networks whose BSs are powered with both regular energy from the grid and the renewable energy. We minimize the on-grid energy consumption of BSs by adapting their cell sizes. The cell size optimization problem is NP-hard. We divide the problem into two subproblems: the multi-stage energy allocation problem and energy consumption minimization problem. We propose an energy allocation policy and an approximation algorithm to solve these subproblems, respectively, and subsequently solve the cell size optimization problem. Simulation results demonstrate that the proposed solution achieves significant energy savings.
UR - http://www.scopus.com/inward/record.url?scp=84877661755&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84877661755&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2012.6503944
DO - 10.1109/GLOCOM.2012.6503944
M3 - Conference contribution
AN - SCOPUS:84877661755
SN - 9781467309219
T3 - Proceedings - IEEE Global Communications Conference, GLOBECOM
SP - 5189
EP - 5193
BT - 2012 IEEE Global Communications Conference, GLOBECOM 2012
T2 - 2012 IEEE Global Communications Conference, GLOBECOM 2012
Y2 - 3 December 2012 through 7 December 2012
ER -