In systems with highly efficient turbo-codes, where the operating SNR may be as low as 1-2 dB, excellent estimation accuracy for synchronisation parameters is required. However, in such conditions conventional non-data-aided synchronisation techniques become difficult due to the low SNRs. In addition, to achieve a high efficiency, it is desirable to recovery synchronisation from received data signals without using preambles. This book describes a novel concept, which is called a priori probability aided synchronisation. This concept fits particularly well with the iterative turbo decoder, but it will also be applicable with other types of code. The proposed synchronisation operates iteratively and jointly with the turbo decoding, rather than separately prior to the decoding. This allows a successive refinement of synchronisation and provides reliable estimation and robust data decoding against a wide range of synchronisation offsets. It is shown that remarkable performance approaching that of the data-aided techniques can be achieved using blind synchronisation at low SNRs.
In systems with highly efficient turbo-codes, where the operating SNR may be as low as 1-2 dB, excellent estimation accuracy for synchronisation parameters is required. However, in such conditions conventional non-data-aided synchronisation techniques become difficult due to the low SNRs. In addition, to achieve a high efficiency, it is desirable to recovery synchronisation from received data signals without using preambles. This book describes a novel concept, which is called a priori probability aided synchronisation. This concept fits particularly well with the iterative turbo decoder, but it will also be applicable with other types of code. The proposed synchronisation operates iteratively and jointly with the turbo decoding, rather than separately prior to the decoding. This allows a successive refinement of synchronisation and provides reliable estimation and robust data decoding against a wide range of synchronisation offsets. It is shown that remarkable performance approaching that of the data-aided techniques can be achieved using blind synchronisation at low SNRs.
Inside Russia an anti-Western cabal organises co-ordinated terror strikes against the UK and the US using extremist groups, criminal gangs and 'Sleeper' Agents, culminating these with 'suitcase'...
This book is for researchers in computer science, mathematical logic, and philosophical logic. It shows the state of the art in current investigations of process calculi with mainly two major...
Das Buch behandelt in systematischer und praxisorientierter Weise den Entwurf sowie die Leistungsbewertung von Synchronisationsverfahren in Mehrrechner-Datenbanksystemen. Nach einer Klassifikation...
Diplomarbeit aus dem Jahr 2008 im Fachbereich Sprachwissenschaft / Sprachforschung (fachübergreifend), Note: 1,7, Fachhochschule Flensburg, Sprache: Deutsch, Abstract: In einem Zeitalter, in dem sich...
Motiviert durch den Zusammenhang zwischen der Qualität zwischenmenschlicher Interaktionen und der Häufigkeit von Synchronisationsphänomenen werden in der vorliegenden Studie Situations- und...
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