Total Energy Efficiency of Cellular Large Scale Antenna System Multiple Access Mobile Networks
29 October 2013
Energy efficiency and spectral efficiency of a Large Scale Antenna System (LSAS) in both dense urban and suburban multi-macro-cellular scenarios are quantified using a new total energy efficiency model, which consists of a rigorous capacity lower bound and a power model accounting for RF generation, LSAS critical computing and a per antenna internal power consumption for other analog electronics and A/D and D/A converters that are associated with each LSAS service antenna. For example, in dense urban, an LSAS array with sixty-four 0dB gain antennas, each consuming an internal power of 128mW above the power required for RF generation and for LSAS critical computing, can simultaneously serve 15 users with a total energy efficiency almost 1000 times greater than that of a typical LTE base station and at the same time more than quadruple the aggregate spectral efficiency.
