Title :
Application of a leakage based precoding scheme to mitigate intrinsic interference in FBMC
Author :
Jayasinghe, Upul ; Rajatheva, Nandana ; Latva-aho, Matti
Author_Institution :
Asian Inst. of Technol., Telecommun. Field of Study, Thailand
Abstract :
Orthogonal frequency division multiplexing with offset QAM (OFDM/OQAM) modulation scheme, more commonly known as filter bank multicarrier (FBMC), has received greater attention recently, due to its spectral efficiency compared to standard OFDM. However, intrinsic interference in FBMC causes a negative effect on the system performance depending on the channel condition. Hence, in this paper, we analyze the interference in OFDM/OQAM systems and introduce a preceder based on signal-to-leakage-plus-noise ratio (SLNR) to overcome the effect of interference on the system. First we implement the system in a more efficient way using inverse fast Fourier transform (IFFT). Then based on that model, the precoding matrix is generated. Finally through simulation and analysis, reduction of interference and improvement of performance are investigated.
Keywords :
OFDM modulation; channel bank filters; fast Fourier transforms; inverse transforms; matrix algebra; precoding; quadrature amplitude modulation; signal denoising; FBMC; IFFT; OFDM modulation scheme; OQAM; SLNR; channel condition; filter bank multicarrier; intrinsic interference mitigation; inverse fast Fourier transform; leakage based precoding scheme; offset QAM; orthogonal frequency division multiplexing; preceding matrix; signal-to-leakage-plus-noise ratio; spectral efficiency; Filter banks; Finite impulse response filters; Indexes; Interference; OFDM; Receivers; Signal to noise ratio; BER; D7FT; Equalization; FBMC; MCM; OFDM/OQAM; SINK; SLNR; SNR;
Conference_Titel :
Communications (ICC), 2013 IEEE International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICC.2013.6655423
