Title | Decision-feedback differential detection based on linear prediction for 16DAPSK signals transmitted over flat Ricean fading channels |
Publication Type | Journal Article |
Year of Publication | 2001 |
Authors | Schober, R., W. H. Gerstacker, and J. B. Huber |
Journal | Communications, IEEE Transactions on |
Volume | 49 |
Pagination | 1339 -1342 |
Date Published | aug. |
ISSN | 0090-6778 |
Keywords | 16DAPSK signals, amplitude shift keying, blind starting algorithm, carrier frequency offset compensation, differential detection, differential phase shift keying, differentially encoded amplitude/phase-shift keying, feedback, flat Ricean fading channels, land mobile radio, least squares approximations, linear predictor coefficients, mobile communications, modulation coding, nonstationary mobile channel statistics, performance gain, prediction theory, prediction-based decision-feedback differential detection, recursive least-squares algorithm, Rician channels |
Abstract | In this article, prediction-based decision-feedback differential detection (DF-DD) for 16-level differentially encoded amplitude/phase-shift keying is proposed. Unlike previously reported DF-DD schemes, this scheme provides a performance gain over conventional differential detection under general Ricean fading conditions. A further important advantage of the novel scheme is that it is able to compensate a small carrier frequency offset. The linear predictor coefficients may be updated using the recursive least-squares 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 a nonstationary mobile channel can be tracked |
URL | http://dx.doi.org/10.1109/26.939846 |
DOI | 10.1109/26.939846 |