A prototype filter design for cosine modulated transmultiplexer using weighted constrained least squares technique

Vishwakarma, A. and Kumar, A. and Singh, G.K. (2015) A prototype filter design for cosine modulated transmultiplexer using weighted constrained least squares technique. AEU - International Journal of Electronics and Communications, 69 (6). pp. 915-922. ISSN 1434-8411

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Official URL: http://dx.doi.org/10.1016/j.aeue.2015.02.010

Abstract

In this paper, an efficient design method of nearly perfect reconstruction cosine modulated transmultiplexer (CM TMUX) system is presented for the prescribed stop band attenuation (As), pass band attenuation (Ap), and channel overlapping or roll off factor (RF). The weighted constrained least squares (WCLS) technique is used for the design of a prototype filter in CM TMUX system. In the proposed algorithm, 3dB cut-off frequency (o)c) is iteratively adjusted, so that the magnitude of inter-channel interference or inter-carrier interference (ICI) can be minimized. Performance of the proposed algorithm has been measured in terms of ICI, inter-symbol interference (ISI), signal to inter-channel interference ratio (SICI), signal to inter-symbol interference ratio (SISI), and signal to total interference in the kth channel ratio (SIk). Several examples are presented to illustrate the key advantageous features of the proposed technique over other existing techniques.

Item Type: Article
Uncontrolled Keywords: Weighted constrained least squares (WCLS); Inter-channel interference (ICI); Inter-symbol interference (ISI); Signal to inter-channel interference (SICI); Signal to inter-symbol interference (SISI)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 01 Oct 2018 02:44
Last Modified: 01 Oct 2018 02:44
URI: http://eprints.um.edu.my/id/eprint/19491

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