Abstract
In this paper, the uplink energy efficiency and uplink outage probability for two-tier cellular access networks (TTCANs) are investigated. To model of the uplink energy efficiency and uplink outage probability in TTCANs, a closed-form expression of signal-to-interference ratio (SIR) is derived by considering the on/off states of femtocell access points (APs). Moreover, a second order kernel function is firstly used to solve the analytical interference model with femtocell APs turning on in TTCANs. Simulation results show that femtocell user’s intensity has great impact on the uplink energy efficiency and uplink outage probability in a TTCAN. These results provide some guidelines for developing new energy saving schemes in practical TTCANs deployment.
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This research is supported from the National Natural Science Foundation of China (NSFC), contract/grant number: 60872007; National 863 High Technology Program of China, grant number: 2009AA01Z239; The Ministry of Science and Technology (MOST), International Science and Technology Collaboration Program, 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; the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2011-0009454).
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Zhang, J., Ge, X., Chen, M. et al. Uplink energy efficiency analysis for two-tier cellular access networks using kernel function. Telecommun Syst 52, 1305–1312 (2013). https://doi.org/10.1007/s11235-011-9642-x
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DOI: https://doi.org/10.1007/s11235-011-9642-x