Title :
Interference analysis of fixed terrestrial microwave LOS/NLOS radio links
Author :
Goktas, Polat ; Topcu, Satilmis ; Karasan, Ezhan ; Altintas, Ayhan
Author_Institution :
Elektrik ve Elektron. Muhendisligi Bolumu, Bilkent Univ., Ankara, Turkey
Abstract :
In this study, interference modelling is investigated for fixed terrestrial microwave LOS (line-of-sight)/ NLOS (transhorizon) radio links operating in NATO Band 3+ (1350-2690 MHz) and NATO Band 4 (4400-5000 MHz) frequency bands. The calculation of the interference due to both clear-air and hydrometeor scattering interference mechanisms are made for the interfered-with receiver stations of fixed terrestrial point-to-point systems. Moreover, interference propagation mechnasims of the calculation of the clear-air interference basic transmission loss mentioned in the Rec. ITU-R P. 452 are examined. Interference analysis for several microwave radio links are analyzed using the interference propagation parameters such as interfering transmitter and interfered-with receiver station coordinates, antenna heights above ground level, antenna discrimination, polarization, radio refractivity index lapse, sea-level surface refractivity, time percentage for which the calculated basic transmission loss is not exceeded, clutter information, digital terrain elevation and climate data.
Keywords :
clutter; interference (signal); microwave links; polarisation; refractive index; LOS radio link; NATO Band 3+; NATO Band 4; NLOS radio link; Rec. ITU-R P. 452; antenna discrimination; antenna height; clear-air interference; climate data; clutter information; digital terrain elevation; fixed terrestrial microwave; frequency 1350 MHz to 2690 MHz; frequency 4400 MHz to 5000 MHz; hydrometeor scattering interference; interference analysis; interference propagation mechanism; microwave radio link; non-line of-sight; polarization; radio refractivity index lapse; receiver station; sea-level surface refractivity; terrestrial point-to-point system; transhorizon; transmission loss; Microwave antennas; Propagation losses; Radio link; Radiofrequency interference; Receivers; Scattering; Rec. ITU-R P. 452; clear-air interference; hydrometeor scattering interference; line-of-sight (LOS); non line-of-sight (NLOS) microwave radio links;
Conference_Titel :
Signal Processing and Communications Applications Conference (SIU), 2015 23th
Conference_Location :
Malatya
DOI :
10.1109/SIU.2015.7130249
