| Paper: | ITT-P3.11 | ||
| Session: | Multimedia, Automotive, Printing and Networking Applications | ||
| Time: | Friday, May 19, 16:30 - 18:30 | ||
| Presentation: | Poster | ||
| Topic: | Industry Technology Track: Data Communications and Networking | ||
| Title: | PERFORMANCES OF LOW SNR DVB-RCS MODEM USING TEST FREQUENCY ALGORITHM | ||
| Authors: | Caroline Bazile, CNES, France; Jean-François Delaune, Thalès Communications, France; Xavier Deplancq, CNES, France; Jacques Eudes, Thalès Communications, France; Guy Lesthievent, CNES, France; Dominique Merel, Thalès Communications, France; Thierry Robert, Jean-Philippe Taisant, CNES, France | ||
| Abstract: | Burst demodulation at low Signal to Noise Ratio represents a key issue, especially for satellite return link MF-TDMA access. Besides inherent coding performances, modem implementation losses and reference symbol overhead have to be minimized for a system efficiency objective. This paper presents a new demodulation algorithm, called Test Frequency, and its implementation in a modem prototype called “TurboCode Mock-Up”. The measured performances of this modem applied to a DVB-RCS (Digital Video Broadcasting – Return Channel by Satellite) transmission scheme are presented for realistic channel conditions. The reference symbol dimensioning and positioning are discussed, and recommendations for DVB-RCS standard evolutions are proposed. | ||
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