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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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