Open AccessImproved ITU‐R model for digital terrestrial television propagation path loss prediction
Author(s) -
Pérez García N.A.,
Pinto A.D.,
Torres J.M.,
Rengel J.E.,
Rujano L.M.,
Robles Camargo N.,
Donoso Y.
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2017.1033
Subject(s) - path loss , dimensioning , computer science , particle swarm optimization , radio propagation , path (computing) , mean squared error , process (computing) , algorithm , real time computing , mean squared prediction error , electronic engineering , simulation , telecommunications , statistics , mathematics , engineering , computer network , wireless , aerospace engineering , operating system
The use of a suitable propagation model for coverage prediction is key during the planning and dimensioning process of a digital terrestrial television (DTT) system. This study optimises one of the most detailed models for this purpose, i.e. Recommendation ITU‐R.P.1812‐4, with the aim of improving its accuracy in propagation path loss prediction for DTT systems in outdoor environments of Caracas city, Venezuela. For model adjustment, it is used the bioinspired technique particle swarm optimisation (PSO) and received signal level measurements performed in DTT systems in Caracas city under fixed reception conditions. The results, quantitatively analysed by RMS error and grey relation grade and mean absolute percentage error, shows a significant increase of the accuracy of optimised model in comparison with the original version and even with others propagation models.