A new low complexity reconfigurable channel filter architecture for software radio handsets
- 1 November 2008
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- p. 1334-1338
- https://doi.org/10.1109/iccs.2008.4737400
Abstract
Software defined radio (SDR) is emerging as a powerful platform for future generation cellular systems due to its capability of operating according to multiple mobile radio standards. The most computationally intensive part of the digital front-end of the wideband receiver of a SDR is the channelizer, which operates at the highest sampling rate in the system. The channel filters in the channelizer extracts narrowband channels corresponding to varying communication standards from the wideband input signal. An architecture for implementing low complexity reconfigurable channel filter for the SDR mobile handsets, based on interpolation, decimation and frequency masking techniques is proposed in this paper. The proposed architecture is capable of extracting channels with different bandwidths corresponding to the channel spacing of different time-varying channels. Design examples show that proposed architecture offers 87.7 % complexity reduction over conventional Per-Channel approach.Keywords
This publication has 9 references indexed in Scilit:
- Coefficient decimation approach for realizing reconfigurable finite impulse response filtersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- Reconfigurable Frequency Response Masking Filters for Software Radio ChannelizationIEEE Transactions on Circuits and Systems II: Express Briefs, 2008
- A New Common Subexpression Elimination Algorithm For Implementing Low Complexity FIR Filters in Sofware Defined Radio ReceiversPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- Low power and high-speed implementation of fir filters for software defined radio receiversIEEE Transactions on Wireless Communications, 2006
- An optimal entropy coding scheme for efficient implementation of pulse shaping FIR filters in digital receiversPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Channelization for software defined base-stationsAnnals of Telecommunications, 2002
- Software Radio ArchitecturePublished by Wiley ,2000
- Software Radio ReceiversPublished by Springer Science and Business Media LLC ,1999
- Frequency-response masking approach for the synthesis of sharp linear phase digital filtersIEEE Transactions on Circuits and Systems, 1986