Authors : Najnin Sultana and Monjurul Haque
Abstract: For purpose of saving cost the generation of wireless mobile communication evolved into LTE system by using MIMO-OFDM technology. But for the higher data rate it expenses higher energy. So, an efficient antenna management system is needed to be designed to save energy per bit transmission. In MIMO, there are multiple RF channels for transmitting data which consumes much energy. In the case of LTE Release 10 which supports peak data rate of 1 Gbps, it consumes more than that. For urban macro environment, the energy cost is too high for higher data rate. So, an algorithm for adaptive selection of subset of antennas is designed to minimize the optimal transmitting power and to calculate the required minimum energy per bit for both two ended system and one ended system with continuous streaming of data. We employ MATLAB based simulation to verify the energy efficiency benefit of antenna management system. The result shows that the antenna management can achieve 25% one-end energy per bit reduction to the front end of MIMO network interface from static MIMO system which keeps all antenna actives.
Najnin Sultana and Monjurul Haque, 2014. Efficient Energy Saving Antenna Management for LTE Advanced-Mimo System. International Journal of Electrical and Power Engineering, 8: 41-48.