Title :
Per-bin DFE for advanced OQAM-based multi-carrier wireless data transmission systems
Author :
Nedic, Slobodan ; Popovic, Nenand
Abstract :
This paper presents a non-linear per-bin adaptive equalization in orthogonal multi-carrier data transmission system with the Nyquist-type sub-channel spectral shaping. Previously introduced linear equalization is augmented by three decision feedback filters to improve performance in presence of narrow-band interference (NBI), and to enable exploitation of implicit diversity of multipath fading channels. Adaptation properties of per-bin DFE equalization are analyzed by computer simulation. The bit error rate performance comparison between conventional OFDM and the OQAM-based multi-carrier systems is provided, and the potential advantage of using spectrally well shaped orthogonal subchannels in advanced wireless applications is pointed out
Keywords :
adaptive equalisers; data communication; decision feedback equalisers; error statistics; multipath channels; quadrature amplitude modulation; radiofrequency interference; spectral analysis; BER; Nyquist-type sub-channel spectral shaping; OFDM; OQAM; bit error rate performance; computer simulation; decision feedback filters; feedforward FIR filter; multi-carrier wireless data transmission systems; multipath fading channels; narrow-band interference; nonlinear per-bin adaptive equalization; orthogonal multicarrier data transmission system; per-bin DFE; spectrally shaped orthogonal subchannels; Adaptive equalizers; Bit error rate; Computer simulation; Data communication; Decision feedback equalizers; Fading; Interference; Narrowband; Nonlinear filters; OFDM;
Conference_Titel :
Broadband Communications, 2002. Access, Transmission, Networking. 2002 International Zurich Seminar on
Conference_Location :
Zurich
Print_ISBN :
0-7803-7257-3
DOI :
10.1109/IZSBC.2002.991781
