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Evaluating the interference from fixed wireless access TDMA systems into HAPS systems: a probabilistic approach
Author(s) -
Tamo Alberth,
Fortes Jose Mauro P.
Publication year - 2019
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2019.0216
Subject(s) - probabilistic logic , computer science , time division multiple access , interference (communication) , wireless , wireless network , channel (broadcasting) , stochastic geometry models of wireless networks , random access , antenna (radio) , computer network , telecommunications , radio resource management , artificial intelligence
This study presents a probabilistic model to assess the co‐channel interference produced by multiple transmitters of a fixed wireless access network into a high altitude platform stations (HAPS) victim receiver. The authors propose an alternative probabilistic approach that avoids the worst case assumptions usually considered in traditional interference calculation methods, by considering the random modelling of some of the technical parameters involved. More specifically, the geographic positions of fixed wireless access system transmitters are modelled by a two‐dimensional point process and their antenna gains in the sidelobe region are modelled as gamma distributed random variables. The proposed method is validated by comparing the minimal operating distance resulting from the traditional deterministic interference calculation methods and that obtained with th proposed approach. Results corresponding to the four possible interfering scenarios indicate that the proposed probabilistic approach leads to a reduction in coordination distances.

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