Multirate systems and filter banks
Multirate systems and filter banks
A limited memory algorithm for bound constrained optimization
SIAM Journal on Scientific Computing
Digital signal processing (3rd ed.): principles, algorithms, and applications
Digital signal processing (3rd ed.): principles, algorithms, and applications
Algorithm 778: L-BFGS-B: Fortran subroutines for large-scale bound-constrained optimization
ACM Transactions on Mathematical Software (TOMS)
Understanding digital subscriber line technology
Understanding digital subscriber line technology
OFDM-Based Broadband Wireless Networks: Design and Optimization
OFDM-Based Broadband Wireless Networks: Design and Optimization
IEEE Transactions on Signal Processing - Part I
Tight Weyl-Heisenberg frames in l2(Z)
IEEE Transactions on Signal Processing
Wavelet packet modulation for orthogonally multiplexedcommunication
IEEE Transactions on Signal Processing
Analysis of post-combiner equalizers in cosine-modulated filterbank-based transmultiplexer systems
IEEE Transactions on Signal Processing
DFT-modulated filterbank transceivers for multipath fading channels
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Redundant filterbank precoders and equalizers. I. Unification andoptimal designs
IEEE Transactions on Signal Processing
ISI-free FIR filterbank transceivers for frequency-selectivechannels
IEEE Transactions on Signal Processing
Wavelet packet division multiplexing and wavelet packet designunder timing error effects
IEEE Transactions on Signal Processing
Bit error rate performance of OFDM in narrowband interference with excision filtering
IEEE Transactions on Wireless Communications
Filter bank modulation techniques for very high speed digital subscriber lines
IEEE Communications Magazine
Multicarrier modulation for data transmission: an idea whose time has come
IEEE Communications Magazine
Overlapped discrete multitone modulation for high speed copper wire communications
IEEE Journal on Selected Areas in Communications
Filtered multitone modulation for very high-speed digital subscriber lines
IEEE Journal on Selected Areas in Communications
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In recent years, multicarrier modulation techniques have stirred great interest among researchers. One specific form of multicarrier modulation, referred to as orthogonal frequency division multiplexing (OFDM), has been deployed in many applications. Despite their huge popularity, OFDM systems have a few, but important, drawbacks. In particular, OFDM relies on the inverse fast Fourier transform (FFT) for modulation purposes, which leads to a poor spectral containment and, consequently, to a high susceptibility to narrowband noise. To mitigate this problem, we propose to employ over-interpolated perfect reconstruction (PR) discrete Fourier transform (DFT) filter banks. The design of such filter banks is addressed using a novel method that guarantees the PR property to be satisfied while the spectral containment is being maximized. The equalization of frequency-selective channels exploits the fact that the filter banks do not contribute to any distortion due to its PR nature. A simple scheme, taking the form of an one-tap per subcarrier equalizer, is considered. Experimental results indicate that the spectral containment of the proposed PR DFT filter bank transceiver is indeed superior to the OFDM system. Moreover, simulations conducted in a digital subscriber line (DSL)-like environment contaminated by a narrowband noise show that the achievable bit rate of the proposed transceiver is significantly higher than that of a conventional OFDM system.