Title :
Energy Efficient Comparison between Distributed MIMO and Co-Located MIMO in the Uplink Cellular Systems
Author :
He, Chunlong ; Sheng, Bin ; Zhu, Pengcheng ; You, Xiaohu
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
Abstract :
In this paper, we compare EE of the distributed MIMO (D-MIMO) and co-located MIMO (C-MIMO) in the uplink cellular systems since mobile stations are battery powered. The total energy consumption includes both the circuit energy consumption and the transmission energy. We get the closed-form expression for EE of D-MIMO and C-MIMO systems. What´s more, an optimization algorithm is proposed to get the optimal EE values while satisfying given spectral efficiency (SE) requirement for both D-MIMO and C-MIMO systems. Simulation results show that the D-MIMO systems are more energy efficient than C-MIMO systems in composite fading channel, and the optimal EE value can be obtained by the proposed algorithm while satisfying given SE requirement.
Keywords :
MIMO communication; cellular radio; fading channels; C-MIMO system; C-MIMO systems; D-MIMO system; circuit energy consumption; closed-form expression; colocated MIMO system; composite fading channel; distributed MIMO system; energy efficiency; mobile stations; spectral efficiency; total energy consumption; transmission energy; uplink cellular systems; Energy consumption; MIMO; Mobile communication; Optimization; Power demand; Wireless communication;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2012 IEEE
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4673-1880-8
Electronic_ISBN :
1090-3038
DOI :
10.1109/VTCFall.2012.6398961
