Study on predistortion techniques and adaptive modulation used in fading channels

DOI

10.2991/iccia.2012.332How to use a DOI?

Keywords

predistortion techniques, adaptive modulation, fading channels

Abstract

Spectral efficiency is one of primary concern in the design of any wireless data communications systems, where fading is the main problem. An approach that can be taken to overcome the problem of fading is to adapt the modulation scheme according to the instantaneous propagation channel conditions. In this paper, we present a simplified mathematical model to calculate the probability of SER for any given constellation of M-QAM. This model plays an important role in designing spectrally efficient adaptive modulation over nonlinear mobile channels. Instantaneous spectral efficiency and its histogram distribution are found for linear and nonlinear channel cases. The achievable spectral efficiency is obtained for linear and nonlinear channel and compared with non-adaptive system and Shannon capacity.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wei Liu
AU  - E Zhang
PY  - 2014/05
DA  - 2014/05
TI  - Study on predistortion techniques and adaptive modulation used in fading channels
BT  - Proceedings of the 2012 2nd International Conference on Computer and Information Application (ICCIA 2012)
PB  - Atlantis Press
SP  - 1338
EP  - 1341
SN  - 1951-6851
UR  - https://doi.org/10.2991/iccia.2012.332
DO  - 10.2991/iccia.2012.332
ID  - Liu2014/05
ER  -