Ιδρυματικό Αποθετήριο [SANDBOX]
Πολυτεχνείο Κρήτης
EN  |  EL

Αναζήτηση

Πλοήγηση

Ο Χώρος μου

Noncoherent alamouti phase-shift keying with full-rate encoding and polynomial-complexity maximum-likelihood decoding

Markopoulos, Panos, Karystinos Georgios

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/18132517-72B0-49FC-AF0D-B37B64337BEA
Έτος 2017
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά P. Markopoulos and G. Karystinos, "Noncoherent alamouti phase-shift keying with full-rate encoding and polynomial-complexity maximum-likelihood decoding," IEEE Trans. Wireless Commun., vol. 16, no. 10, pp. 6688-6697, Oct. 2017. doi: 10.1109/TWC.2017.2728524 https://doi.org/10.1109/TWC.2017.2728524
Εμφανίζεται στις Συλλογές

Περίληψη

We consider Alamouti encoding that draws symbols from phase-shift keying and develop a new differential modulation scheme that attains full rate for any constellation order. In contrast to past work, the proposed scheme guarantees that the encoded matrix maintains the characteristics of the initial codebook and, at the same time, attains full rate so that all possible sequences of space-time matrices become valid. Surprisingly, although the validity of all sequences could be thought as a drawback with respect to the cost of noncoherent sequence decoding, in fact it turns out to be an advantage. Based on recent results in the context of quadratic-form maximization over finite alphabets, we exploit the full-rate property of the proposed scheme to develop a polynomial-complexity maximum-likelihood noncoherent sequence decoder whose order is solely determined by the number of receive antennas. Numerical studies show the superiority of the proposed scheme in comparison with contemporary alternatives in terms of encoding rate, decoding complexity, bandwidth efficiency, and throughput.

Υπηρεσίες

Στατιστικά