Frequency response masking based reconfigurable channel filters for software radio receivers

R. Mahesh; A. P. Vinod

doi:10.1109/iscas.2007.378751

Frequency response masking based reconfigurable channel filters for software radio receivers

R. Mahesh^*, A. P. Vinod

^*Corresponding author for this work

Research output: Contribution to journal › Conference article published in journal › peer-review

13 Citations (Scopus)

Abstract

The most computationally demanding block in the digital front end of a software defined radio (SDR) receiver is the channelizer which operates at the highest sampling rate. Finite impulse response (FIR) filters are employed as channel filters in SDR receivers. These channel filters must be less complex and reconfigurable. A new reconfigurable architecture for the implementation of channel filters based on frequency response masking (FRM) technique is proposed in this paper. Our architecture offers multiple levels of reconfigurability in addition to the inherent low complexity features offered by the FRM technique. Design results show that our method offers an average adder reduction of 37% over binary subexpression elimination (BSE) technique and 57% over canonical signed digit (CSD) based techniques.

Original language	English
Article number	4253189
Pages (from-to)	2518-2521
Number of pages	4
Journal	Proceedings - IEEE International Symposium on Circuits and Systems
DOIs	https://doi.org/10.1109/iscas.2007.378751
Publication status	Published - 2007
Externally published	Yes
Event	2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, LA, United States Duration: 27 May 2007 → 30 May 2007

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10.1109/iscas.2007.378751

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title = "Frequency response masking based reconfigurable channel filters for software radio receivers",

abstract = "The most computationally demanding block in the digital front end of a software defined radio (SDR) receiver is the channelizer which operates at the highest sampling rate. Finite impulse response (FIR) filters are employed as channel filters in SDR receivers. These channel filters must be less complex and reconfigurable. A new reconfigurable architecture for the implementation of channel filters based on frequency response masking (FRM) technique is proposed in this paper. Our architecture offers multiple levels of reconfigurability in addition to the inherent low complexity features offered by the FRM technique. Design results show that our method offers an average adder reduction of 37\% over binary subexpression elimination (BSE) technique and 57\% over canonical signed digit (CSD) based techniques.",

author = "R. Mahesh and Vinod, \{A. P.\}",

year = "2007",

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language = "English",

pages = "2518--2521",

journal = "Proceedings - IEEE International Symposium on Circuits and Systems",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

note = "2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 ; Conference date: 27-05-2007 Through 30-05-2007",

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T1 - Frequency response masking based reconfigurable channel filters for software radio receivers

AU - Mahesh, R.

AU - Vinod, A. P.

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N2 - The most computationally demanding block in the digital front end of a software defined radio (SDR) receiver is the channelizer which operates at the highest sampling rate. Finite impulse response (FIR) filters are employed as channel filters in SDR receivers. These channel filters must be less complex and reconfigurable. A new reconfigurable architecture for the implementation of channel filters based on frequency response masking (FRM) technique is proposed in this paper. Our architecture offers multiple levels of reconfigurability in addition to the inherent low complexity features offered by the FRM technique. Design results show that our method offers an average adder reduction of 37% over binary subexpression elimination (BSE) technique and 57% over canonical signed digit (CSD) based techniques.

AB - The most computationally demanding block in the digital front end of a software defined radio (SDR) receiver is the channelizer which operates at the highest sampling rate. Finite impulse response (FIR) filters are employed as channel filters in SDR receivers. These channel filters must be less complex and reconfigurable. A new reconfigurable architecture for the implementation of channel filters based on frequency response masking (FRM) technique is proposed in this paper. Our architecture offers multiple levels of reconfigurability in addition to the inherent low complexity features offered by the FRM technique. Design results show that our method offers an average adder reduction of 37% over binary subexpression elimination (BSE) technique and 57% over canonical signed digit (CSD) based techniques.

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U2 - 10.1109/iscas.2007.378751

DO - 10.1109/iscas.2007.378751

M3 - Conference article published in journal

AN - SCOPUS:34548831108

SN - 0271-4310

SP - 2518

EP - 2521

JO - Proceedings - IEEE International Symposium on Circuits and Systems

JF - Proceedings - IEEE International Symposium on Circuits and Systems

M1 - 4253189

T2 - 2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007

Y2 - 27 May 2007 through 30 May 2007

ER -

Frequency response masking based reconfigurable channel filters for software radio receivers

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