Christian Hofbauer, Carl Böck, Mario Huemer,
"From Dedicated Redundant Subcarriers to Distributed Redundancy in UW-OFDM"
: Proceedings of the ASILOMAR Conference on Signals, Systems, and Computers, IEEE, 11-2016, ISBN: 978-1-5386-3954-2
From Dedicated Redundant Subcarriers to Distributed Redundancy in UW-OFDM
Sprache des Titels:
Proceedings of the ASILOMAR Conference on Signals, Systems, and Computers
Unique word orthogonal frequency division multiplexing (UW-OFDM) is based on introducing redundancy, either on dedicated redundant subcarriers leading to systematically encoded UW-OFDM, or spread over the entire bandwidth resulting
in the non-systematically encoded UW-OFDM concept. The waveform design of the latter has originally been optimized by incorporating transmitter and receiver processing steps, while the systematic approach primarily focuses on the redundant
transmit energy minimization. This work closes the gap between both by introducing a design procedure for non-systematically encoded UW-OFDM that is also predicated on redundant energy arguments. Furthermore, this approach provides a simple way to increase the bandwidth efficiency.