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| Title | Decision-feedback differential detection for 16DAPSK transmitted over Rician fading channels |
| Publication Type | Conference Paper |
| Year of Publication | 1999 |
| Authors | Gerstacker, W. H., R. Schober, and J. B. Huber |
| Conference Name | Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th |
| Pagination | 2515 -2519 vol.5 |
| Keywords | 16-DAPSK, 16-level differentially encoded amplitude-phase-shift keying, additive white Gaussian noise, amplitude shift keying, AWGN, AWGN channels, channel coding, decision feedback equalisers, decision-feedback differential detection, differential detection, linear predictive coding, linear predictor coefficients, mobile radio, nonstationary mobile channel, performance gain, phase shift keying, Rician channels, Rician fading channels, statistics tracking |
| Abstract | In this paper, a novel decision-feedback differential detection (DF-DD) scheme based on linear prediction is proposed for 16-level differentially encoded amplitude-phase-shift keying (16-DAPSK). Unlike previously proposed DF-DD schemes, this scheme not only provides a performance gain over conventional differential detection (DD) under additive white Gaussian noise (AWGN) conditions but also under general Rician fading conditions. A further important advantage of the novel scheme is that it does not degrade under frequency offset. The linear predictor coefficients may be updated using the recursive least-squares (RLS) algorithm, which can start blind, i.e., without a priori knowledge about the channel statistics and without a training sequence. This makes the scheme attractive for application in mobile communications since the statistics of the nonstationary mobile channel can be tracked |
| URL | http://dx.doi.org/10.1109/VETECF.1999.800137 |
| DOI | 10.1109/VETECF.1999.800137 |