Performance Analysis of OFDM-Based Amplify and Forward Networks under Adaptive M-QAM

Performance Analysis of OFDM-Based Amplify and Forward Networks under Adaptive M-QAM

In this paper, we study an amplify-and-forward OFDM-based wireless relay network and provide an exact analysis of the system achievable average throughput and probability of outage. It is assumed that the users transmits their data over a Rayleigh fading channel. Further, to increase the system thro...

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Hauptverfasser: Najmafshar, M., Noori, M., Vakili, V. T.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Bit error rate
Fading
Modulation
OFDM
Relays
Signal to noise ratio
Throughput
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Vakili, V. T.
description In this paper, we study an amplify-and-forward OFDM-based wireless relay network and provide an exact analysis of the system achievable average throughput and probability of outage. It is assumed that the users transmits their data over a Rayleigh fading channel. Further, to increase the system throughput and use the channel more efficiently, adaptive modulation is applied on each subcarrier and the relaying strategy is selective OFDMA. Our analysis shows that how the system performance enhances by using selective OFDMA relaying scheme in terms of both average throughput and probability of outage. Simulation results verifies the accuracy of our proposed analysis.
doi_str_mv 10.1109/VETECS.2011.5956654
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subjects Bit error rate
Fading
Modulation
OFDM
Relays
Signal to noise ratio
Throughput
title Performance Analysis of OFDM-Based Amplify and Forward Networks under Adaptive M-QAM
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