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Outage capacity of a noncoherent cooperation scheme with binary input and a simple relay

Liavas Athanasios, Karystinos George

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URIhttp://purl.tuc.gr/dl/dias/F85DF72F-6C97-4E81-AC55-DFF28A2FB106-
Αναγνωριστικόhttps://doi.org/10.1109/ISWPC.2008.4556292-
Γλώσσαen-
Μέγεθος4 pagesen
ΤίτλοςOutage capacity of a noncoherent cooperation scheme with binary input and a simple relayen
ΔημιουργόςLiavas Athanasiosen
ΔημιουργόςΛιαβας Αθανασιοςel
ΔημιουργόςKarystinos Georgeen
ΠερίληψηCooperative protocols attempt to create spatial diversity in slow flat fading scenarios. It is well known that diversity is more effective at low SNR where binary input is (close to) optimal. With special emphasis on simple relays and low SNR, where accurate channel estimation is difficult, we consider a binary-input noncoherent demodulate-and-forward cooperative protocol. We assume that symbol-by-symbol decisions at the relay and destination are obtained using differential encoding/decoding and we develop an upper bound for the outage capacity for slow Rayleigh flat fading channels. For comparison purposes, we compute the outage capacity of binary-input differential encoding/decoding direct transmission. We observe that the isin-outage capacity achieved using differential encoding/decoding is much smaller than that of the coherent case. Furthermore, we observe that, as in the coherent case, the DmF protocol outperforms direct transmission at low outage probability, while at moderate and high outage probability the opposite happens. en
ΤύποςΠλήρης Δημοσίευση σε Συνέδριοel
ΤύποςConference Full Paperen
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-11-08-
Ημερομηνία Δημοσίευσης2008-
Βιβλιογραφική ΑναφοράA. P. Liavas and G. N. Karystinos, “Outage capacity of a noncoherent cooperation scheme with binary input and a simple relay," in 2008 3rd Intern. Symp.Wireless Pervasive Comp.,pp. 661-664,doi:10.1109/ISWPC.2008.4556292en

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