Widely Linear Data Estimation for Unique Word OFDM

Description

Unique word - orthogonal frequency division multiplexing (UW-OFDM) is known to feature an excellent bit error ratio performance when compared to conventional OFDM using cyclic prefixes (CP). In recent papers linear and non-linear UW-OFDM receivers have been investigated and compared for proper data vectors consisting of QPSK and 16-QAM symbols. In this work we derive the widely linear minimum mean square error (WLMMSE) estimator for the application to UW-OFDM in combination with real and therefore improper data vectors. For the investigated modulation schemes BPSK and M-ASK our simulation results indicate a significant performance gain of the widely linear estimator over strictly linear methods.

Period	06 Nov 2013
Event title	Asilomar Conference on Signals, Systems and Computers
Event type	Conference
Location	United StatesShow on map