Title :
Energy Efficiency of Distributed Antenna Systems Using Fractional Frequency Reuse
Author :
Aldosari, Mansour Moneef ; Hamdi, Khairi Ashour
Author_Institution :
Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester, UK
Abstract :
This letter investigates the trade-off between the downlink ergodic spectral efficiency (ESE) and the energy efficiency (EE) of distributed antenna systems (DAS) by using a new mathematical approach. Maximum ratio transmission (MRT) and fractional frequency reuse (FFR) are applied and composite Nakagami- m fading and log-normal shadowing are considered. The performance evaluation of DAS in FFR mode using MRT is greatly simplified using the proposed analytical approach.
Keywords :
Nakagami channels; antennas; energy conservation; frequency allocation; log normal distribution; Nakagami-m fading shadowing; distributed antenna systems; downlink ergodic spectral efficiency; energy efficiency; fractional frequency reuse; log-normal shadowing; maximum ratio transmission; Antenna arrays; Downlink; Fading; Interference; Signal to noise ratio; Transmitting antennas; Ergodic spectral efficiency; distributed antenna systems; energy efficiency; fractional frequency reuse; maximum ratio transmission; spectral efficiency;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2461534
