Spectrum requirements for the future development of IMT-2000 and systems beyond IMT-2000

• Published in: Journal of communications and networks Vol. 8; no. 2; pp. 169 - 174
• Main Authors: Yoon, Hyun-Goo, Chung, Woo-Ghee, Jo, Han-Shin, Lim, Jaewoo, Yook, Jong-Gwan, Park, Han-Kyu
• Format: Journal Article
• Language: English
• Published: Seoul Editorial Department of Journal of Communications and Networks 01.06.2006; The Institute of Electrical and Electronics Engineers, Inc. (IEEE); 한국통신학회
• Subjects: 3G mobile communication; Data models; Downlink; Efficiency; Electronic mail; Estimation; Flexible spectrum usage; international mobile telecommunication (IMT)-2000; spectral efficiency; spectrum requirements; systems beyond IMT-2000; 전자/정보통신공학
• ISSN: 1229-2370; 1976-5541
• DOI: 10.1109/JCN.2006.6182744

In this paper, the algorithm of a methodology for the calculation of spectrum requirements was implemented. As well, the influence of traffic distribution ratio among radio access technology groups, spectral efficiency, and flexible spectrum usage (FSU) margin was analyzed in terms of the spectrum requirements, with a view toward for future development of international mobile telecommunication (IMT)-2000 and systems beyond IMT-2000. The calculated spectrum requirement in the maximum spectral efficiency case is reduced by approximately 40% compared to a minimum spectral efficiency case. The effect of the distribution ratio on the required spectrum is smaller than the effect of the spectral efficiency. As the flexible spectrum usage margin increases by 1.0 dB, the total spectrum requirement decreases by 0.9 dB. The required spectrum for the market input parameter, ρ= 0.5 is 801.63 MHz, while the required spectrum for ρ= 1.0 is 6295.4 MHz. This is equivalent to an increase of 785.32%.