Abstract
In this paper, we develop a new joint carrier frequency offset (CFO) and channel estimation algorithm for Amplify-and-Forward (AF) cooperative (CO)-OFDM systems. An expanded Basis Expansion Model (E-BEM) is proposed for time variant multipath channels. Based on the E-BEM, a joint OFDM channel estimation and synchronization method is derived. We also apply the space-frequency-block-code (SFBC) to AF CO-OFDM systems. Simulation results reveal that the proposed joint algorithm works well, leading to considerable gains of overall performance.
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Jiang, Q., Zhang, K., Liu, J. et al. Joint Carrier Frequency Offset and Channel Estimation for Amplify-and-Forward Cooperative OFDM System. Wireless Pers Commun 55, 173–199 (2010). https://doi.org/10.1007/s11277-009-9794-0
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DOI: https://doi.org/10.1007/s11277-009-9794-0