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Iterative synchronisation and DC-offset estimation using superimposed training

By S.M.A. Moosvi, D.C. McLernon and E. Alameda-Hernandez

Abstract

In this paper, we propose a new iterative approach for superimposed training (ST) that improves synchronisation, DC-offset estimation and channel estimation. While synchronisation algorithms for ST have previously been proposed in [2],[4] and [5], due to interference from the data they performed sub-optimally, resulting in channel estimates with unknown delays. These delay ambiguities (also present in the equaliser) were estimated in previous papers in a non-practical manner. In this paper we avoid the need for estimation of this delay ambiguity by iteratively removing the effect of the data “noise”. The result is a BER performance superior to all other ST algorithms that have not assumed a-priori synchronisation

Publisher: IEEE
Year: 2007
OAI identifier: oai:eprints.whiterose.ac.uk:2485

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