Open AccessCalculation of Spectral Efficiency for Estimating Spectrum Requirements of IMT‐Advanced in Korean Mobile Communication Environments
Author(s) -
Chung WooGhee,
Lim Euntaek,
Yook JongGwan,
Park HanKyu
Publication year - 2007
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.07.0106.0105
Subject(s) - spectral efficiency , electronic engineering , mimo , computer science , bandwidth (computing) , mobile telephony , interference (communication) , mobile broadband , imt advanced , coding (social sciences) , radio spectrum , telecommunications , engineering , mobile radio , wireless , mathematics , mobile station , base station , statistics , channel (broadcasting) , mobile web
In this paper, we analyze the algorithm of the methodology developed by ITU for the calculation of spectrum requirements of IMT‐Advanced. We propose an approach to estimate user density using traffic statistics, and to estimate spectrum efficiencies using carrier‐to‐interference ratio distribution and capacity theory as well as experimental data under Korean mobile communication environments. We calculate the IMT‐Advanced spectrum requirements based on the user density and spectral efficiencies acquired from the new method. In the case of spectral efficiency using higher modulation and coding schemes, the spectrum requirement of IMT‐Advanced is approximately 2700 MHz. When applying a 2×2 multiple‐input multiple‐output (MIMO) antenna system, it is approximately 1500 MHz; when applying a 4×4 MIMO antenna system, it is approximately 1050 MHz. Considering that the development of new technology will increase spectrum efficiency in the future, the spectrum requirement of IMT‐Advanced in the Korean mobile communication environment is expected to be approximately 1 GHz bandwidth.