1 research outputs found
Experiment for Non-Interfering Coexistence of Non-Orthogonal SEFDM Signals and LTE
A non-orthogonal waveform, termed Nyquistspectrally
efficient frequency division multiplexing (NyquistSEFDM),
introduces benefits such as compressed bandwidth
and low out-of-band power leakage, which meets two crucial
requirements for future carrier aggregation (CA) or machinetype
communication (MTC) applications. Both simulation and
experimental results are presented in this work. A comparative
simulation study of SEFDM signals is firstly presented to
show the trade-offs between BER performance, bandwidth compression
and suppressed out-of-band power leakage. Following
modelling results, an enhanced multiuser diversity scenario was
proposed to show future applications of SEFDM waveforms.
Finally, an experimental testbed was designed to validate the
coexistence of two signals. The impact of the newly proposed
signals on existing 4
th generation (4G) signals is evaluated.
Index Terms—Multicarrier, experiment, testbed, software de-
fined radio, pulse shaping, spectral efficiency, carrier aggregation,
OFDM, SEFDM, non-orthogonal