@inproceedings{c93ab98169db45d2b283e16395103ffb,
title = "Progressive decimation filter banks for variable resolution spectrum sensing in cognitive radios",
abstract = "Conventional uniform discrete Fourier transform filter bank (DFTFB) used in energy detection based spectrum sensors provides only fixed sensing resolution. In this paper, we propose a progressive decimation filter bank (PDFB) that can provide variable sensing resolution and adapt to different detection bandwidths for wideband spectrum sensing in cognitive radios. From an initial fixed-coefficient modal filter, a filter bank that has multiple passbands of different passband widths can be obtained using coefficient decimation. Changing the number of subbands in proposed method does not involve hardware re-implementation. Design examples show that the detection performance of proposed variable resolution PDFB is comparable to that of conventional fixed resolution DFTFB based spectrum sensor.",
keywords = "Coefficient decimation, Cognitive radio, Filter bank, Reconfigurable sensing resolution, Spectrum sensing",
author = "Mengda Lin and Vinod, \{A. P.\} and Samson, \{Chong Meng\}",
year = "2010",
doi = "10.1109/ICTEL.2010.5478757",
language = "English",
isbn = "9781424452477",
series = "ICT 2010: 2010 17th International Conference on Telecommunications",
pages = "857--863",
booktitle = "ICT 2010",
note = "2010 17th International Conference on Telecommunications, ICT 2010 ; Conference date: 04-04-2010 Through 07-04-2010",
}