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IET Circuits, Devices and Systems
Article . 2017 . Peer-reviewed
License: Wiley Online Library User Agreement
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DBLP
Article . 2017
Data sources: DBLP
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Analytic cascaded filterbanks for multicarrier modulation

Authors: RAJAN, A; SHAH, H; SANGWAN, V; BHADAURIA, I; GADRE, VM;

Analytic cascaded filterbanks for multicarrier modulation

Abstract

Filterbank multicarrier has been proposed as an alternative to rthogonal frequency division multiplexing (OFDM). A uniform Discrete Fourier Transform (DFT) transmultiplexer cannot have maximum packing efficiency while using slowly decaying pulses. Maximally decimated filterbanks and transmultiplexers can be used interchangeably. Designing a filterbank with large number of independent filters can be a tedious job. So, wavelet packets have been tried as a basis for multicarrier modulation. However, real wavelet packets have energy on both sides of the spectrum, making the use of a single tap equalisation and usage of water‐filling algorithm difficult. The authors propose a cascade of filterbanks which produce nearly analytic waveforms. They also design a class of 3‐band filterbanks whose high‐pass filters are structurally complex conjugate pairs, which reduce the complexity of the design. A 5‐band filterbank is also designed with similar properties and a hybrid cascade of filterbanks is also investigated. The performance of the cascade and hybrid cascade through a wireless channel is compared with OFDM without cyclic prefix and Daubechies wavelet packets. In highly frequency selective channels, the proposed cascaded filterbank design outperforms OFDM without cyclic prefix and Daubechies wavelet packets in terms of error rate.

Country
India
Related Organizations
Keywords

Will, Design, Nondft-Based Filter Designs, Highly Frequency Selective Channels, Single Tap Equalisation, Packet, Channel Bank Filters, Low-Pass Filters, Orthogonal Frequency Division Multiplexing, Structurally Complex Conjugate Pairs, 5-Band Filterbank, Daubechies Wavelet Packets, Slowly Decaying Pulses, 5g, Uniform Dft Transmultiplexer, 3-Band Filterbanks, Low-Pass Filter, Analytic Cascaded Filterbanks, Wireless Channel, Cyclic Prefix, Ofdm Modulation, Transmultiplexers, Water-Filling Algorithm, Systems, High-Pass Filters, 600, Maximally Decimated Filterbank, 003, Multicarrier Modulation, Wave-Form, Discrete Fourier Transforms, Maximum Packing Efficiency, Filterbank Multicarrier, Ofdm

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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