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Reduction of the error floor of MSK by nonlinear frequency discriminator

Molisch, Andreas LU and Petrovic, R (2003) In IEEE Transactions on Wireless Communications 2(5). p.1101-1107
Abstract
We consider the error floor of binary frequency-shift keying (FSK) due to intersymbol interference in time-dispersive mobile radio channels, with a limiter-discriminator-integrator detector. The errors are caused by bursts in the instantaneous frequency. We propose and verify that a nonlinear frequency discriminator can achieve zero error floor for pure FSK by clipping off these bursts. For filtered FSK, the error floor is not completely removed, but strongly reduced - typically by one or two orders of magnitude. The tighter the filtering, the less effective this nonlinearity is. The nonlinear discriminator can also be used in conjunction with adaptive sampling.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
discriminators, dispersive channels, frequency shift keying, intersymbol interference, minimum shift keying, mobile radio, signal detection
in
IEEE Transactions on Wireless Communications
volume
2
issue
5
pages
1101 - 1107
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:3042758058
ISSN
1536-1276
DOI
10.1109/TWC.2003.817414
language
English
LU publication?
yes
id
46aa7af0-7184-47f4-8d3a-30b2fa7aadcf (old id 600981)
date added to LUP
2007-12-05 13:58:17
date last changed
2017-08-27 05:38:27
@article{46aa7af0-7184-47f4-8d3a-30b2fa7aadcf,
  abstract     = {We consider the error floor of binary frequency-shift keying (FSK) due to intersymbol interference in time-dispersive mobile radio channels, with a limiter-discriminator-integrator detector. The errors are caused by bursts in the instantaneous frequency. We propose and verify that a nonlinear frequency discriminator can achieve zero error floor for pure FSK by clipping off these bursts. For filtered FSK, the error floor is not completely removed, but strongly reduced - typically by one or two orders of magnitude. The tighter the filtering, the less effective this nonlinearity is. The nonlinear discriminator can also be used in conjunction with adaptive sampling.},
  author       = {Molisch, Andreas and Petrovic, R},
  issn         = {1536-1276},
  keyword      = {discriminators,dispersive channels,frequency shift keying,intersymbol interference,minimum shift keying,mobile radio,signal detection},
  language     = {eng},
  number       = {5},
  pages        = {1101--1107},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Wireless Communications},
  title        = {Reduction of the error floor of MSK by nonlinear frequency discriminator},
  url          = {http://dx.doi.org/10.1109/TWC.2003.817414},
  volume       = {2},
  year         = {2003},
}