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Computer Science > Information Theory

arXiv:1401.4944 (cs)
[Submitted on 20 Jan 2014 (v1), last revised 13 May 2014 (this version, v2)]

Title:Iterative pre-distortion of the non-linear satellite channel

Authors:Thibault Deleu, Mathieu Dervin, Kenta Kasai, François Horlin
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Abstract:Digital Video Broadcasting - Satellite - Second Generation (DVB-S2) is the current European standard for satellite broadcast and broadband communications. It relies on high order modulations up to 32-amplitude/phase-shift-keying (APSK) in order to increase the system spectral efficiency. Unfortunately, as the modulation order increases, the receiver becomes more sensitive to physical layer impairments, and notably to the distortions induced by the power amplifier and the channelizing filters aboard the satellite. Pre-distortion of the non-linear satellite channel has been studied for many years. However, the performance of existing pre-distortion algorithms generally becomes poor when high-order modulations are used on a non-linear channel with a long memory. In this paper, we investigate a new iterative method that pre-distorts blocks of transmitted symbols so as to minimize the Euclidian distance between the transmitted and received symbols. We also propose approximations to relax the pre-distorter complexity while keeping its performance acceptable.
Subjects: Information Theory (cs.IT)
Cite as: arXiv:1401.4944 [cs.IT]
  (or arXiv:1401.4944v2 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.1401.4944

Submission history

From: Thibault Deleu [view email]
[v1] Mon, 20 Jan 2014 15:35:45 UTC (231 KB)
[v2] Tue, 13 May 2014 12:12:34 UTC (294 KB)
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