| Shendi WANG, Institute for Digital Communications (IDCOM), University of Edinburgh |
| Tue 30 Aug 2016, 13:30 - 14:00 |
| AGB Seminar Room, AGB Building, King’s Buildings, EH9 3JL |
If you have a question about this talk, please contact: Iman Tavakkolnia (s1371647)
Abstract: Machine type communications (MTC) could play a significant role in the fifth generation (5G) wireless communications systems. In terms of reducing the side-lobe levels of the orthogonal frequency-division multiplexing (OFDM) to support large number of asynchronous MTC devices, several waveform designs could be used for relaxing the synchronisation requirements. This paper provides closed form signal-to-interference-plus-noise ratio (SINR) and capacity results for this asynchronous scenario. We compare three candidate multi-carrier waveforms, which are OFDM, universal filtered multi-carrier (UFMC) and polynomial cancellation coded (PCC-OFDM). Our results indicate that both PCC and UFMC can provide better frequency roll-off than OFDM. PCC is more easy to implement and performs strongly against inter carrier interference (ICI) with cost of halving the spectral efficiency and a higher peak-to-average power ratio (PAPR). UFMC is more robust to very dispersive multipath channels with cost of increasing computational complexity significantly.
Biography: Mr. Shendi WANG is a current PhD student at the Institute for Digital Communications (IDCOM). His current research interest is efficient communication systems for MTC in future 5G.