Title :
Applicability of the Longley-Rice Model for COFDM-Based Digital Television Broadcasting
Author :
Stanislav, Stephen
Author_Institution :
Dept. of Electron. & Commun. Facilities, Far Eastern Fed. Univ., Vladivostok, Russia
Abstract :
The special performance of COFDM-based system, e.g. DVB-T, in respect of multipath and interference lead to coverage areas increase as compared with traditional modulation-based system. Existing prediction models don´t take into account this factor. In this paper, the limits of suitability of the Long-Rice model for COFDM-based system in urban area. With this objective, the signal-level measurements of DVB-T broadband in Vladivostok, Russia were carried out. The observed signal levels were compared with the Lonley-Rice model. The comparison showed that the Lonley-Rice model reported good agreement for line-of-sight path, but for non-lineof-sight path calculated values were underestimated.
Keywords :
OFDM modulation; digital television; radiofrequency interference; television broadcasting; COFDM-based digital television broadcasting; COFDM-based system; DVB-T broadband; Lonley-Rice model; Russia; Vladivostok; interference; line-of-sight path; modulation-based system; prediction model; signal level; signal-level measurement; urban area; Antenna measurements; Digital video broadcasting; Predictive models; Radio transmitters; Sea measurements; Urban areas; Wavelength measurement;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing (WiCOM), 2012 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-684-2
DOI :
10.1109/WiCOM.2012.6478435
