NDLI: Implementation and performance analysis of an efficient FFT pruning algorithm for NC-OFDM based cognitive radio system

Content Provider	IEEE Xplore Digital Library
Author	Mandal, N. Mandal, H.
Copyright Year	2011
Description	Author affiliation: Dept. of Electronics and Communication Engineering Haldia Institute of Technology, WBUT, West Bengal, India (Mandal, N.) \|\| Dept. of Electronics and Communication Engineering Calcutta Institute of technology, WBUT, West Bengal, India (Mandal, H.)
Abstract	Cognitive radio is a revolutionary evolution of future wireless communication to utilize the unused part of the spectrum, which is actually assigned to licensed services only. An NC_OFDM based cognitive radio has the capability to nullify individual sub carriers to avoid interference with the licensed user. So, that there could be a large number of zero valued inputs/outputs compare to non-zero terms. From the standard structure of OFDM we can find that IFFT/FFT modules play the vital role for any OFDM based transceiver. So when zero valued inputs/outputs outnumber nonzero inputs/outputs, then general IFFT/FFT algorithm for OFDM is no longer efficient in term of execution time. It is possible to reduce the execution time by “pruning” the FFT. In this paper we have implemented a novel and efficient input zero traced FFT pruning (IZTFFTP) algorithm based on DIF radix-2 technique. Compare to other algorithms, the results of IZFFTP shows that it is independent of the position of the zero valued input and also maintaining a good trade-off between time and space complexity of any system by not only reducing the number of complex multiplication as well as complex additions also extraordinarily. The proposed algorithm is implemented in high level computer program i.e. in C++ and this is similar to the Cooley-Tukey radix-2 FFT algorithm, retaining all the key features such as simplicity and regularity, by making some alternation and programming modification.
Starting Page	1
Ending Page	6
File Size	463282
Page Count	6
File Format	PDF
ISBN	9781457719158
e-ISBN	9781457719172
DOI	10.1109/ICCIndA.2011.6146679
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-12-26
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Computers NC_OFDM Flowcharts OFDM FFT Signal processing algorithms Transceivers Cognitive radio FFT Pruning Execution time
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

An efficient implementation of NC-OFDM transceivers for cognitive radios (2006)

An Efficient Implementation of NC-OFDM Transceivers for Cognitive Radios

Efficient FFT pruning algorithm for non-contiguous OFDM systems

Design of split-radix FFT pruning for OFDM based cognitive radio system

An Efficient Power Allocation Algorithm for OFDM Based Underlay Cognitive Radio Networks

Dynamic partial reconfigurable FFT/IFFT pruning for OFDM based Cognitive radio

An efficient design of split-radix FFT pruning for OFDM based Cognitive Radio system

Energy-Efficient Fast Fourier Transforms for Cognitive Radio Systems

Split-radix FFT pruning for OFDM based Cognitive Radio system

Implementation and performance analysis of an efficient FFT pruning algorithm for NC-OFDM based cognitive radio system

Similar Documents

An efficient implementation of NC-OFDM transceivers for cognitive radios (2006)

An Efficient Implementation of NC-OFDM Transceivers for Cognitive Radios

Efficient FFT pruning algorithm for non-contiguous OFDM systems

Design of split-radix FFT pruning for OFDM based cognitive radio system

An Efficient Power Allocation Algorithm for OFDM Based Underlay Cognitive Radio Networks

Dynamic partial reconfigurable FFT/IFFT pruning for OFDM based Cognitive radio

An efficient design of split-radix FFT pruning for OFDM based Cognitive Radio system

Energy-Efficient Fast Fourier Transforms for Cognitive Radio Systems

Split-radix FFT pruning for OFDM based Cognitive Radio system

Implementation and performance analysis of an efficient FFT pruning algorithm for NC-OFDM based cognitive radio system