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In this paper, two reconfigurable architectures based on frequency-response masking (FRM) and non-maximally decimated filter bank system are proposed. The proposed methods are suitable for sharp wideband channelizers. The basic FRM structure consists of an interpolated modal filter and its masking filters. In both the proposed methods, the masking filters are synthesized by means of reconfigurable...
In this paper, a reconfigurable Non-Maximally Decimated Filter Bank (NMDFB) based on polyphase structure, is proposed for Very Long Baseline Interferometry (VLBI) channelizers. The characteristic property of less operations per second of the polyphase structure is exploited in the design of NMDFB. Besides this, the inherent property of zero folding noise, makes NMDFB as an ideal choice for all high...
Channel allocation and Channel access are considered to be the most important issues in Wireless Communication System. MAC protocols for wireless sensor networks based on CSMA/CA induce high overhead due to RTS/CTS packets and does not completely eliminate hidden terminal problems. A new technique, called Grid based Channel allocation and Access scheduling using Latin Squares (GAALS) can be effectively...
Orthogonal frequency division multiplexing (OFDM) is a promising technology for optical communications. OFDM is a modulation technique in which the other subcarriers have zero amplitude at the peak of each subcarrier. Since it is an effective solution to inter symbol interference caused by a dispersive channel, OFDM can be used in most new and emerging broadband wired and wireless communication systems...
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