Title
On The Energy-Efficiency Of Hybrid Analog-Digital Transceivers For Large Antenna Array Systems
Abstract
Hybrid Analog-Digital transceivers are employed with the view to reduce the hardware complexity and the energy consumption in millimeter wave/large antenna array systems by reducing the number of their Radio Frequency (RF) chains. However, the analog processing network requires power for its operation and it further introduces power losses, dependent on the number of the transceiver antennas and RF chains, that have to be compensated. Thus, the reduction in the power consumption is usually much less than it is expected and given that the hybrid solutions present in general inferior spectral efficiency than a fully digital one, it is possible for the former to be less energy efficient than the latter in several cases. Existing approaches propose hybrid solutions that maximize the spectral efficiency of the system without providing any insight on their actual energy requirements/efficiency. To that end, in this paper, a novel algorithmic framework is developed based on which energy efficient hybrid transceiver designs are developed and their performance is examined with respect to the employed number of RF chains. Solutions are proposed for fully and partially connected hybrid architectures. Numerical results provide insight on when a hybrid transceiver is the most energy efficient solution or not.
Year
Venue
Field
2017
2017 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC)
Extremely high frequency,Telecommunications,Transceiver,Efficient energy use,Computer science,Antenna array,Electronic engineering,Radio frequency,Real-time computing,Spectral efficiency,Energy consumption,Analog signal processing
DocType
ISSN
Citations 
Conference
1550-3607
2
PageRank 
References 
Authors
0.37
16
4
Name
Order
Citations
PageRank
Christos G. Tsinos111618.30
Sina Maleki226219.69
Symeon Chatzinotas31849192.76
Björn E. Ottersten46418575.28