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The Development of a LAN for DVB-T Transmission and DVB-S Reception with Designed QAM Modulators and COFDM in the Island of Mauritius

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Author(s): Sheeba Armoogum | Vinaye Armoogum | Jayprakash Gopaul

Journal: International Journal of Wireless & Mobile Networks
ISSN 0975-4679

Volume: 3;
Issue: 6;
Start page: 71;
Date: 2012;
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Keywords: COFDM | Digital Television Broadcasting System | DVB-S | DVB-T | QAM

ABSTRACT
This paper is a thorough study of a digital television broadcasting system adapted to the small mountainous island of Mauritius. A digital TV LAN was designed with MPEG-2 signals. The compressed signals were transmitted using DVB-T and QAM modulators. QAM-16 and QAM-64 modulators were designed and tested with a simulator under critical conditions of AWGN and phase noises. Results obtained from simulation have shown that Digital video broadcast with a single frequency network (SFN) is possible in Mauritius with QAM-64 and QAM-16 modulators applying COFDM mode of transmission. However, this study has also shown that QAM-16 modulator had a better performance at low AWGN values (less than 12 dB) and can be adopted for Mauritius Island, provided that the number of transmitted channels is not high enough.
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