Abstract
Time domain synchronous OFDM (TDS-OFDM) is a kind of orthogonal multicarrier transmission, where a guard period between consecutive parts of useful information is filled with a pseudorandom noise that acts as a training sequence. This sequence can be used both for synchronization and channel estimation. The paper presents a new estimation procedure for mobile channel recovery, that is based on the time domain training sequence and utilizes the compressive sensing approach. The proposed solution does not require any additional help from any deliberately deployed training information in the frequency domain (pilot tones). The method is experimentally explored in a simulated doubly selective sparse transmission environment. The quality metrics, obtained for an uncoded OFDM transmission system with implementation of the proposed estimation method, are compared to the ones that were obtained in case of ideal channel state information as well as the time-frequency training method.
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Dziwoki, G., Izydorczyk, J., Szebeszczyk, M. (2014). Time Domain Estimation of Mobile Radio Channels for OFDM Transmission. In: Kwiecień, A., Gaj, P., Stera, P. (eds) Computer Networks. CN 2014. Communications in Computer and Information Science, vol 431. Springer, Cham. https://doi.org/10.1007/978-3-319-07941-7_17
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DOI: https://doi.org/10.1007/978-3-319-07941-7_17
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-07940-0
Online ISBN: 978-3-319-07941-7
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