Title :
Cooperative communications: Synchronization in fast flat-fading channels with various signal constellations
Author :
Hossain, Md ToJazzal ; Smith, David B.
Abstract :
A non-data-aided near maximum likelihood (NDA-NML) symbol timing estimator is applied to cooperative communications in fast flat-fading conditions. The performance of a three-node detect-and-forward cooperative communication system is evaluated operating in fast Rayleigh fading channels using various signal constellations with and without synchronization. Timing errors have significant effect on performance. The lower complexity NDA-NML estimator performs well for larger signal constellations in fast fading, when compared to a data aided maximum likelihood (DA-ML) estimator.
Keywords :
Rayleigh channels; cooperative communication; decode and forward communication; maximum likelihood estimation; signal detection; synchronisation; NDA-NML symbol timing estimator; Rayleigh fading channel; cooperative communication; flat-fading channel; nondata-aided near maximum likelihood symbol timing estimator; signal constellation; synchronization; three-node detect-and-forward cooperative communication;
Conference_Titel :
Signal Processing Advances in Wireless Communications (SPAWC), 2010 IEEE Eleventh International Workshop on
Conference_Location :
Marrakech
Print_ISBN :
978-1-4244-6990-1
Electronic_ISBN :
1948-3244
DOI :
10.1109/SPAWC.2010.5671050
