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Energy Efficiency Analysis of JT-CoMP Scheme in Macro/Femto Cellular Networks

Abstract : 5G Wireless Networks are expected to increase substantially data rates and quality of service the users will experience , with a similar or a lower power consumption as todays 4G networks. The Joint Transmission Coordinated MultiPoint (JT-CoMP) is a promising scheme to enhance throughput by reducing the interference, especially for cell-edge users. However, some additional energy for hardware circuit and resource information is consumed by this technology. Meanwhile, the performance evaluation of energy efficiency (EE) in dense networks with JT-CoMP approach becomes a hard task in terms of time expense to conduct simulations. To evaluate the EE metric in cellular networks with JT-CoMP scheme and to capture the major factors involved in the energy consumption process, representative and accurate models are needed. In this paper, we develop a tractable and efficient model of EE based on spatial fluid modeling when JT-CoMP is applied. Simulations results show that EE is improved with the raise of the number of coordinated BSs in case of a constant backhauling power cost. Similar EE improvement is also observed in case of variable backhauling power cost, while adding a new coordinated BS. Furthermore, the EE is significantly enhanced in femto cellular networks compared to macro cellular ones, making thereby, JT-CoMP scheme more effective in small cells.
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Yanqiao Hou, Lynda Zitoune, Véronique Vèque. Energy Efficiency Analysis of JT-CoMP Scheme in Macro/Femto Cellular Networks. GLOBECOM 2019 - 2019 IEEE Global Communications Conference, Dec 2019, Waikoloa, United States. ⟨10.1109/GLOBECOM38437.2019.9013282⟩. ⟨hal-02943611⟩

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