Name
Title | ||
|---|---|---|
Joint use of DFT filter banks and modulated transmultiplexers for multicarrier communications |
Abstract | ||
|---|---|---|
In this paper, new procedures for performing multicarrier modulation (MCM) are presented, based on using IFFT/FFT embedded in a filter bank-based transmultiplexer system. The IFFT/FFT blocks, along with the use of cyclic prefix or zero-padding strategies, enable easy equalization of the transmission channel. Additionally, the transmultiplexer system provides improved spectral discrimination, which can increases the transceiver robustness against mainly narrow-band interferences. Moreover, one of the proposed procedures presents an IDFT as the final stage of the MCM transmitter, and a DFT as the first stage of the receiver. This front-end is similar to standardized systems, enabling its compatibility. As it is illustrated by means of several examples, given a signal to noise ratio and comparing the new procedures to DFT-based MCM adopted in several digital communications standards, the following attractive features can be found: (a) greater spectral separation in the information transmitted over each subcarrier and (b) the robustness of the systems in noisy environments, mainly when narrow-band interferences appear, can be increased, allowing a reduction in the bit error probability. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1016/j.sigpro.2011.01.006 | Signal Processing |
Keywords | Field | DocType |
mcm transmitter,modulated filter bank,dft filter bank,spectral discrimination,prototype filter,cosine multitone,multicarrier modulator,fft block,multitone transceiver,discrete wavelet multitone,polyphase filter,multicarrier transceiver,transmultiplexer system,narrow-band interference,transmultiplexer (tmux),new procedure,joint use,dmt,greater spectral separation,multicarrier communication,ofdm,standardized system,dft-based mcm,modulated transmultiplexers,final stage,front end,signal to noise ratio,filter bank | Subcarrier,Cyclic prefix,Equalization (audio),Prototype filter,Filter bank,Electronic engineering,Fast Fourier transform,Orthogonal frequency-division multiplexing,Mathematics,Bit error rate | Journal |
Volume | Issue | ISSN |
91 | 7 | Signal Processing |
Citations | PageRank | References |
5 | 0.46 | 26 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Fernando Cruz-Roldán | 1 | 111 | 19.33 |
| Manuel Blanco-Velasco | 2 | 314 | 30.57 |