Abstract
Energy efficiency (EE) in the next generation cellular networks has become a prime concern with the availability of high-speed internet access and diverse multimedia applications. Cloud radio access network (C-RAN) has shown remarkable aptitude to enable this aspiring vision in the context of fifth generation (5G) wireless networks. An enormous deployment of cellular base stations (BSs) worldwide has led massive grid power consumption, which deteriorates the EE performance. With the growing awareness of network operational expenditure (OPEX) and carbon footprints, mobile operators are increasingly moving towards renewable energy (RE) sources. In this paper, we propose a RE enabled C-RAN (RE-CRAN) architecture in which all the network entities are powered by both commercial grid supply and RE source aiming to enhance EE. Comprehensive Monte-Carlo based simulations have been carried out to evaluate the EE performance. Thereafter, the proposed framework is compared with the existing C-RAN infrastructure to validate the scheme.
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