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Energy Efficiency Analysis of MISO-OFDM Communication Systems Considering Power and Capacity Constraints

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Abstract

In this paper, the energy efficiency of multi-input single-output and orthogonal frequency division multiplexing (MISO-OFDM) communication systems with power and capacity constraints is investigated. By formulating the power allocation problem of MISO-OFDM communication systems, the minimum subchannel transmission power is analyzed with power and capacity constraints. Simulation results indicate that there exists a specific minimum subchannel capacity threshold. Moreover, the energy efficiency of MISO-OFDM communication systems starts to increase only when the minimum subchannel capacity exceeds the specific threshold.

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Authors and Affiliations

  1. Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan, Hubei, China

    Xiaohu Ge, Jinzhong Hu, Jing Zhang & Xi Yang

  2. Joint Research Institute for Signal and Image Processing, School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK

    Cheng-Xiang Wang

  3. GRID Middleware Research Center of ICC, Korea Advanced Institute of Science and Technology, Taejon, 305, South Korea

    Chan-Hyun Youn

Authors
  1. Xiaohu Ge
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  2. Jinzhong Hu
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  3. Cheng-Xiang Wang
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  4. Chan-Hyun Youn
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  5. Jing Zhang
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  6. Xi Yang
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Corresponding author

Correspondence to Xiaohu Ge.

Additional information

This research was supported by the National Natural Science Foundation of China (NSFC), contract/grant number: 60872007; National 863 High Technology Program of China, contract/grant number: 2009AA01Z239; The Ministry of Science and Technology (MOST), China, International Science and Technology Collaboration Program, contract/grant number:0903; the UK-China Science Bridges Project: R&D on (B)4G Wireless Mobile Communications from the RCUK; EU FP7-PEOPLE-IRSES, project acronym S2EuNet, contract/grant number: 247083.

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Ge, X., Hu, J., Wang, CX. et al. Energy Efficiency Analysis of MISO-OFDM Communication Systems Considering Power and Capacity Constraints. Mobile Netw Appl 17, 29–35 (2012). https://doi.org/10.1007/s11036-011-0296-4

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  • DOI: https://doi.org/10.1007/s11036-011-0296-4

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