Energy-efficient resource allocation in OFDMA networks
GLOBECOM - IEEE Global Telecommunications Conference, Page: 1-5
2011
- 25Citations
- 15Captures
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Conference Paper Description
The widespread application of multimedia wireless services and requirement of ubiquitous access have triggered rapidly booming energy consumption at both the base station side. Hence, energy-efficient design in wireless networks is very important and is becoming an inevitable trend. In this paper, we study energy-efficient resource allocation in downlink cellular OFDMA networks. For the downlink transmission, the weighted energy efficiency (EE) is maximized under certain prescribed per-user quality- of-service (QoS) requirements. We first obtain the optimal solution then propose a suboptimal approach by exploring the inherent structure and property of the energy-efficient design to reduce complexity. Simulation results show that the energy-efficient design greatly improves EE compared with that of the conventional spectral-efficient design and our low- complexity suboptimal approaches can achieve promising tradeoff between performance and complexity. © 2011 IEEE.
Bibliographic Details
Institute of Electrical and Electronics Engineers (IEEE)
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