Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/7B2A01ED-1A5D-4F4B-BF49-9CB39521E6CF | - |
| Αναγνωριστικό | https://ieeexplore.ieee.org/document/7414434 | - |
| Αναγνωριστικό | https://doi.org/10.1109/TCOMM.2016.2529620 | - |
| Γλώσσα | en | - |
| Μέγεθος | 13 pages | en |
| Τίτλος | Log-linear-complexity GLRT-optimal noncoherent sequence detection for orthogonal and RFID-oriented modulations | en |
| Δημιουργός | Alevizos Panagiotis | en |
| Δημιουργός | Αλεβιζος Παναγιωτης | el |
| Δημιουργός | Fountzoulas Ioannis | en |
| Δημιουργός | Φουντζουλας Ιωαννης | el |
| Δημιουργός | Karystinos Georgios | en |
| Δημιουργός | Καρυστινος Γεωργιος | el |
| Δημιουργός | Bletsas Aggelos | en |
| Δημιουργός | Μπλετσας Αγγελος | el |
| Εκδότης | Institute of Electrical and Electronics Engineers | en |
| Περίληψη | Orthogonal modulation, for example, frequency-shift keying (FSK) Or pulse-position modulation (PPM), is primarily used in relatively-low-rate communication systems that operate in the power-limited regime. Optimal noncoherent detection of orthogonally modulated signals takes the form of sequence detection and has exponential (in the sequence length) complexity when implemented through an exhaustive search among all possible sequences. In this work, for the first time in the literature, we present an algorithm that performs generalized-likelihoodratio- Test (GLRT) optimal noncoherent sequence detection of orthogonally modulated signals in flat fading with log-linear (in the sequence length) complexity. Moreover, for Rayleigh fading channels, the proposed algorithm is equivalent to the maximumlikelihood (ML) noncoherent sequence detector. Simulation studies indicate that the optimal noncoherent FSK detector attains coherent-detection performance when the sequence length is on the order of 100, offering a 3-5 dB gain over the typical energy (single-symbol) detector.While the conventional exhaustive-search approach becomes infeasible for such sequence lengths, the proposed implementation requires a log-linear only number of operations, opening new avenues for practical deployments. Finally, we show that our algorithm also solves efficiently the optimal noncoherent sequence detection problem in contemporary radio frequency identification (RFID) systems. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2018-10-16 | - |
| Ημερομηνία Δημοσίευσης | 2016 | - |
| Θεματική Κατηγορία | Algorithm design and analysis | en |
| Θεματική Κατηγορία | Combinatorial mathematics | en |
| Θεματική Κατηγορία | Fading channels | en |
| Θεματική Κατηγορία | FM0 coding | en |
| Θεματική Κατηγορία | Frequency-shift keying | en |
| Θεματική Κατηγορία | Generalized likelihood-ratio test | en |
| Θεματική Κατηγορία | Maximum-likelihood detection | en |
| Θεματική Κατηγορία | Noncoherent communication | en |
| Θεματική Κατηγορία | Pulse-position modulation | en |
| Θεματική Κατηγορία | Radio-frequency identification | en |
| Θεματική Κατηγορία | Sequence detection | en |
| Θεματική Κατηγορία | Wireless communication | en |
| Βιβλιογραφική Αναφορά | P. N. Alevizos, Y. Fountzoulas, G. N. Karystinos and A. Bletsas, "Log-linear-complexity GLRT-optimal noncoherent sequence detection for orthogonal and RFID-oriented modulations," IEEE Trans. Commun., vol. 64, no. 4, pp. 1600-1612, Apr. 2016. doi: 10.1109/TCOMM.2016.2529620 | en |
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