Browsing by Author "Fareed, M. M."

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    Error-rate performance analysis of cooperative OFDMA system with decode-and-forward relaying
    (IEEE, 2014-06) Fareed, M. M.; Uysal, Murat; Tsiftsis, T. A.; Electrical & Electronics Engineering; UYSAL, Murat
    In this paper, we investigate the performance of a cooperative orthogonal frequency-division multiple-access (OFDMA) system with decode-and-forward (DaF) relaying. Specifically, we derive a closed-form approximate symbol-error-rate expression and analyze the achievable diversity orders. Depending on the relay location, a diversity order up to (L-SkD + 1) + Sigma(M)(m=1) min(L-SkRm + 1, L-RmD + 1) is available, where M is the number of relays, and L-SkD + 1, L-SkRm + 1, and L-RmD + 1 are the lengths of channel impulse responses of source-to-destination, source-to-mth relay, and mth relay-to-destination links, respectively. Monte Carlo simulation results are also presented to confirm the analytical findings.