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Precoded OFDM for asynchronous uplink with transparency to OFDM receiver

: Afrasiabi-Gorgani, S.; Wunder, G.; Shin, W.


Institute of Electrical and Electronics Engineers -IEEE-:
Engaged citizens and their new smart worlds: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017. Proceedings : Montreal, 2017 Oct. 8-13
Piscataway, NJ: IEEE, 2018
ISBN: 978-1-5386-3531-5
ISBN: 978-1-5386-3529-2
ISBN: 978-1-5386-3530-8
ISBN: 978-1-5386-3532-2
International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC) <28, 2017, Montreal>
Fraunhofer HHI ()

A novel waveform design approach is taken to develop a waveform based on precoding of data symbols, referred to as Precoded OFDM. The waveform is tailored for robustness against asynchronous transmission and a simple OFDM receiver to keep its intricacies hidden from the system. These features are most desired in massive Machine Type Communications (mMTC) where better intrinsic robustness is critical in avoiding the overheads used in cellular systems for synchronization.