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Energy-efficient communication has attracted more and more attention due to the large energy consumption in wireless communication network. Relay-assisted OFDM cellular network is one of the most effective frameworks in the IMT-Advanced system to improve the spectral efficiency. This paper investigates the energy-efficient resource allocation for multiuser two-way multi-relay OFDM network. We formulate...
Due to the time-varying nature of wireless channels, deterministic quality of service (QoS) is hard to guarantee in wireless networks. In this paper, by integrating information theory with the principle of effective capacity, we formulate an energy efficiency optimization problem with statistical QoS guarantee in the uplink of two-tier femtocell networks. To solve the problem, we introduce a Q-learning...
Since access networks are deployed to support peak traffic, part of base stations always keep active during off-peak period, resulting energy dissipation. In this paper, we propose a dynamic Base Station (BS) sleeping algorithm to reduce energy consumption, which exploits dynamic characteristics of mobile data traffic on time and spatial dimensions. Our novel approach aims to improve energy efficiency...
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