Mitigating the Effects of Mobility and Synchronization Error in OFDM Based Cooperative Communication Systems

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Provided by: The International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems
Topic: Enterprise Software
Format: PDF
An orthogonal frequency division multiplexing based mobile wireless network with a sender, a destination and a third station acting as a cooperating node is modelled and analyzed. The length of cyclic prefix in the orthogonal frequency division multiplexed symbols is made to vary depending on the channel conditions and maximum likelihood estimator is used at the receiver in order to compensate for the carrier frequency offset that occurs during transmission. Simulation results show that maximum likelihood estimator has better performance than self-cancellation estimations.
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