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The Coexistence of OFDM-Based Systems Beyond 3G with Fixed Service Microwave Systems  

Jo Han-Shin (Department of Electrical and Electronic Engineering, Yonsei University)
Yoon Hyun-Goo (Department of Computer and Electronic Engineering, Myongji College)
Lim Jae-Woo (Radio Research Laboratory, Ministry of Information and Communication)
Chung Woo-Ghee (Department of Electrical and Electronic Engineering, Yonsei University)
Yook Jong-Gwan (Department of Electrical and Electronic Engineering, Yonsei University)
Park Han-Kyu (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Abstract
In this paper, we study the coexistence of orthogonal frequency division multiplexing (OFDM)-based systems beyond 3G (B3G) and point-to-point (P-P) fixed service (FS) microwave systems. The advanced general analytical model derived via a power spectral density (PSD) analysis proposed in this paper has two advantages in comparison with the conventional minimum coupling loss (MCL) method. First, the interfering signal power that appears in the band of a victim system can be easily assessed without a spectrum emission mask. Second, when transmit power is not allocated to some subcarriers overlapping the band of the victim system in order to mitigate B3G OFDM-based systems interference with other systems, the general analytical model can successfully assess the interference from the B3G systems into FS systems, whereas the MCL method incorporating the spectrum emission mask cannot be applied in the presence of the same interference condition. The proposed model can be derived in a closed form and is simply implemented with the help of simulation, and thus the solution can be obtained in significantly reduced time. Through application of the proposed model, coexistence results are analyzed in a co-channel and adjacent channel with respect to guard band and minimum separation distance.
Keywords
Beyond 3G (B3G) orthogonal frequency division multiplexing (OFDM)-based system; coexistence; guard band; minimum coupling loss (MCL) method; minimum separation distance; point-to-point (P-P) fixed services (FS) systems; power spectral density (PSD);
Citations & Related Records

Times Cited By Web Of Science : 7  (Related Records In Web of Science)
Times Cited By SCOPUS : 9
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