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Designing Energy-Efficient Wireless Access Networks: LTE and LTE-Advanced

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5 Author(s)
Deruyck, M. ; Ghent Univ., Ghent, Belgium ; Joseph, W. ; Lannoo, B. ; Colle, D.
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As large energy consumers, base stations need energy-efficient wireless access networks. This article compares the design of Long-Term Evolution (LTE) networks to energy-efficient LTE-Advanced networks. LTE-Advanced introduces three new functionalities--carrier aggregation, heterogeneous networks, and extended multiple-input, multiple-output (MIMO) support. The authors develop a power consumption model for LTE and LTE-Advanced macrocell and femtocell base stations, along with an energy efficiency measure. They show that LTE-Advanced's carrier aggregation and MIMO improve networks' energy efficiency up to 400 and 450 percent, respectively.

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Internet Computing, IEEE  (Volume:17 ,  Issue: 5 )