Abstract | ||
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This paper is devoted to turbo synchronization, that is to say the use of soft information to estimate parameters like carrier phase, frequency offset or timing within a turbo receiver. It is shown how maximum-likelihood estimation of those synchronization parameters can be implemented by means of the iterative expectation-maximization (EM) algorithm [1]. Then we show that the EM algorithm iterations can be combined with those of a turbo receiver. This leads to a general theoretical framework for turbo synchronization. The soft decision-directed ad-hoc algorithm proposed in [2] for carrier phase recovery turns out to be a particular instance of this implementation. The proposed mathematical framework is illustrated by simulations reported for the particular case of carrier phase estimation combined with iterative demodulation and decoding [3]. |
Year | DOI | Venue |
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2003 | 10.1109/ICC.2003.1204575 | 2003 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, VOLS 1-5: NEW FRONTIERS IN TELECOMMUNICATIONS |
Keywords | Field | DocType |
iterative algorithm,expectation maximization,frequency offset,turbo codes,parameter estimation,synchronisation,maximum likelihood estimate,maximum likelihood estimation,demodulation,em algorithm | Turbo,Demodulation,Synchronization,Mathematical optimization,Expectation–maximization algorithm,Computer science,Turbo code,Frequency offset,Algorithm,Real-time computing,Turbo equalizer,Decoding methods | Conference |
Citations | PageRank | References |
68 | 3.83 | 4 |
Authors | ||
8 |
Name | Order | Citations | PageRank |
---|---|---|---|
Noels, N. | 1 | 164 | 10.97 |
Cédric Herzet | 2 | 247 | 24.06 |
A. Dejonghe | 3 | 68 | 3.83 |
V. Lottici | 4 | 586 | 41.25 |
H. Steendam | 5 | 297 | 20.24 |
M. Moeneclaey | 6 | 1471 | 274.44 |
M. Luise | 7 | 68 | 3.83 |
L. Vandendorpe | 8 | 578 | 82.38 |