Reduction of the error floor of MSK by nonlinear frequency discriminator
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/600981
- author
- Molisch, Andreas LU and Petrovic, R
- organization
- publishing date
- 2003
- 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
- 2016-04-01 17:05:13
- date last changed
- 2022-04-23 02:37:16
@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}}, keywords = {{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}}, doi = {{10.1109/TWC.2003.817414}}, volume = {{2}}, year = {{2003}}, }