Rethinking energy efficiency models of cellular networks with embodied energy

The continuous increase in energy consumption by cellular networks requires rethinking their energy efficiency. Current research indicates that one third of operating energy could be saved by reducing the transmission power of base stations. However, this approach requires the introduction of a rang...

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Bibliographic Details
Published in:IEEE network 2011-03, Vol.25 (2), p.40-49
Main Authors: Humar, I, Xiaohu Ge, Lin Xiang, Minho Jo, Min Chen, Jing Zhang
Format: Article
Language:English
Subjects:
Cellular
Cellular communication
Computer simulation
Consumption
Energy consumption
Energy efficiency
Guidelines
Land mobile radio cellular systems
Maintenance engineering
Manufacturing
Optimization
Stations
Tradeoffs
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Summary:The continuous increase in energy consumption by cellular networks requires rethinking their energy efficiency. Current research indicates that one third of operating energy could be saved by reducing the transmission power of base stations. However, this approach requires the introduction of a range of additional equipment containing more embodied energy - consumed by all processes associated with the production of equipment. This problem is addressed first in this article. Furthermore, a new cellular network energy efficiency model with embodied energy is proposed, and optimization between the number of cells and their coverage is investigated. Contrary to previous works, we have found that embodied energy accounts for a significant proportion of total energy consumption and cannot be neglected. The simulation results confirm an important trade-off between operating and embodied energies, which can provide some practical guidelines for designing energy-efficient cellular access networks. The new model considering embodied energy is not limited to just cellular networks, but to other telecommunications, such as wireless local area networks and wired networks.
ISSN:0890-8044
1558-156X
DOI:10.1109/MNET.2011.5730527