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The paper deals with a new frame synchronization scheme for OFDM systems. The scheme is based on the computing of the detection window variance. The variance is computed in two delayed times, so a modified Early-Late loop is used for the frame position detection. The proposed algorithm has good properties regarding the choice of the algorithm's parameters since the parameters may be chosen within...
In this paper, decision-feedback differential detection with correction of M-ary differential phase shift keying (MDPSK) signals is proposed. Proposed scheme is compared with classic decision feedback differential detection (DF-DD) receiver. Results show that the proposed receiver has better performances in the presence of frequency offset, in a very wide range of frequency offsets. The proposed receiver...
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