Efficient wideband channelizer for software radio systems using modulated PR filterbanks

Authors:
W.A. Abu-Al-Saud;G.L. Stuber
Affiliations:
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA;-
Venue:
IEEE Transactions on Signal Processing - Part I
Year:
2004

Citing 0
Cited 9

Flexible frequency-band reallocation networks using variable oversampled complex-modulated filter banks

EURASIP Journal on Applied Signal Processing
Sample rate conversion filter design for multi-standard software radios

Digital Signal Processing
Research on digital channelized receiving problems in passive guiding system

WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Filter Bank Channelizers for Multi-Standard Software Defined Radio Receivers

Journal of Signal Processing Systems
A Low Complexity Reconfigurable Multi-stage Channel Filter Architecture for Resource-Constrained Software Radio Handsets

Journal of Signal Processing Systems
An Area-efficient Non-uniform Filter Bank for Low Overhead Reconfiguration of Multi-standard Software Radio Channelizers

Journal of Signal Processing Systems
Full length article: A new low power reconfigurable decimation-interpolation and masking based filter architecture for channel adaptation in cognitive radio handsets

Physical Communication
A Low Complexity Reconfigurable Non-uniform Filter Bank for Channelization in Multi-standard Wireless Communication Receivers

Journal of Signal Processing Systems
A multi-resolution fast filter bank for spectrum sensing in military radio receivers

IEEE Transactions on Very Large Scale Integration (VLSI) Systems

Quantified Score

Hi-index	0.00

Visualization

Abstract

An efficient method is proposed for channelizing frequency division multiplexed (FDM) channels in wideband software radio (SWR) received signals that do not satisfy the conditions required for polyphase decomposition of the discrete filterbank (DFB) channelizer. The proposed method, which uses modulated perfect reconstruction (PR) filterbanks, requires fewer computations than DFBs for channelizing wideband signals that are composed of FDM channels of nonequal bandwidths, especially when a large number of channels are extracted. The proposed channelizer, if applied in the reverse direction, can be used to synthesize a set of channels with nonequal bandwidths into a single wideband signal in SWR transmitters. A method is also proposed for efficiently designing the modulated PR filterbanks, which have a large number of subchannels and prototype filters with high stopband attenuations that are used in the proposed channelizer. The computational complexity of the proposed channelizer is compared with the complexity of the DFB channelizer for channelizing the wideband and high-dynamic-range signals that are typical of SWR systems, and simulation results of the proposed channelization method are discussed.