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Influence of nonlinear HPA on trellis-Coded OFDM for terrestrial broadcasting of digital HDTV

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4 Author(s)
Bogenfeld, E. ; Res. and Technol. Centre, Telekom, Darmstadt, Germany ; Valentin, R. ; Metzer, K. ; Sauer-Greff, W.

The paper investigates a system proposal for transmitting digital high-definition television (HDTV) signals over terrestrial UHF channels. The authors compare uncoded 16-QAM and trellis-coded 32-CROSS modulation in conjunction with an orthogonal frequency division multiplexing (OFDM) procedure. The simulations show the influence of the nonlinear distortions introduced by the high-power amplifier (HPA) of the transmitter. As HPA the authors consider a travelling wave tube amplifier (TWTA) and a solid state power amplifier (SSPA). The characteristics of the channel for HDTV in a single frequency network (SFN) is simulated using a time-invariant multipath model

Published in:

Global Telecommunications Conference, 1993, including a Communications Theory Mini-Conference. Technical Program Conference Record, IEEE in Houston. GLOBECOM '93., IEEE

Date of Conference:

29 Nov-2 Dec 1993