NDLI: Optimized transmultiplexers for multirate systems

Content Provider	IEEE Xplore Digital Library
Author	Martin-Martin, P. Cruz-Roldan, F. Saramaki, T.
Copyright Year	2005
Description	Author affiliation: Dpto. Teoria de la Senal y Comunicaciones, Univ. de Alcala, Madrid, Spain (Martin-Martin, P.; Cruz-Roldan, F.)
Abstract	A very fast filter bank optimization technique is proposed for synthesizing efficient nearly perfect-reconstruction cosine-modulated transmultiplexer systems for multicarrier modulation. The most important problems in communications systems are the existence of both the ISI and inter-carrier interference. In order to properly minimize both of these, a windowing technique is used for generating the prototype filter for the cosine-modulated synthesis and analysis filter banks in such a way that a proper weighted sum of the above-mentioned interferences in the sub-channels is minimized. For this purpose, the parameters of the generalized Blackman window proposed by the authors of this paper and the cutoff frequency of the ideal filter are optimized subject to the condition that the 3-dB cutoff frequency of the prototype filter occurs at /spl omega/=/spl pi//(2M) with M being the number of channels. Numerical simulations show that the proposed technique leads to an increase in the signal-to-interference ratio compared to the original Blackman window giving the best results, according to our experience, among the well-known windows.
Starting Page	1106
Ending Page	1109
File Size	256923
Page Count	4
File Format	PDF
ISBN	0780388348
DOI	10.1109/ISCAS.2005.1464786
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-23
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Filter bank Prototypes Cutoff frequency OFDM modulation Intersymbol interference DSL Discrete Fourier transforms Signal synthesis Digital modulation Signal processing
Content Type	Text
Resource Type	Article

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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
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