Frequency Sharing of Cellular TDD-OFDMA Systems beyond 3G with Terrestrial Fixed Systems 


Vol. 32,  No. 1, pp. 125-133, Jan.  2007


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  Abstract

In this paper, the frequency sharing issue between cellular time division duplex-orthogonal frequency division multiple access (TDD-OFDMA) Systems and terrestrial Fixed Systems has been studied. The conventional advanced minimum coupling loss (A-MCL) includes only the formulation to calculate the interference from one interfering system. Therefore, A-MCL must be modified to assess the aggregated interference from base stations(BS) and mobile stations(MS). By applying the modified model, the coexistence analysis are done according to the average number of MS per sector, BS-to-BS distance, and the main beam direction of the terrestrial fixed system. In the case of 20 MS per sector, the BS-to-BS distance and the minimum distance between a terrestrial fixed system and BS are 5.8 ㎞ and 2.5 ㎞, respectively. It is about 25㏈ that the difference between maximum and minimum interference signal power which varies with the main beam direction of the terrestrial fixed system. Moreover, for 40% of the main beam direction of the terrestrial fixed system, interference signal power is less than the maximum permissible interference.

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  Cite this article

[IEEE Style]

H. Jo, H. Yoon, J. Yook, "Frequency Sharing of Cellular TDD-OFDMA Systems beyond 3G with Terrestrial Fixed Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 1, pp. 125-133, 2007. DOI: .

[ACM Style]

Han-shin Jo, Hyun-goo Yoon, and Jong-gwan Yook. 2007. Frequency Sharing of Cellular TDD-OFDMA Systems beyond 3G with Terrestrial Fixed Systems. The Journal of Korean Institute of Communications and Information Sciences, 32, 1, (2007), 125-133. DOI: .

[KICS Style]

Han-shin Jo, Hyun-goo Yoon, Jong-gwan Yook, "Frequency Sharing of Cellular TDD-OFDMA Systems beyond 3G with Terrestrial Fixed Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 1, pp. 125-133, 1. 2007.