نتایج جستجو برای: asymmetric channel
تعداد نتایج: 287637 فیلتر نتایج به سال:
A simple but powerful scheme exploiting the binning concept for asymmetric lossless distributed source coding is proposed. The novelty in the proposed scheme is the introduction of a syndrome former (SF) in the source encoder and an inverse syndrome former (ISF) in the source decoder to efficiently exploit an existing linear channel code without the need to modify the code structure or the deco...
Nonlinear inter-symbol interference leads to significant error rate in nonlinear communication and digital storage channel. In this paper, therefore, a novel recurrent interval type-2 fuzzy neural network with asymmetric membership functions (RT2FNN-A) is proposed for nonlinear channel equalization. The RT2FNN-A uses the interval asymmetric type-2 fuzzy sets and it implements the fuzzy logic sy...
با توجه به پیشرفت روز افزون سیستم های دیجیتال در همه زمینه های فناوری از جمله مخابرات مدرن و از طرف دیگر ماهیت آنالوگ سیگنالهای موجود در طبیعت نیاز بسیار وسیعی به مبدلهای آنالوگ به دیجیتال و دیجیتال به آنالوگ با مشخصات دینامیک و استاتیک مختلف وجود دارد. از آنجا که مبدلهای آنالوگ به دیجیتال مهمترین گلوگاه در مدارات دیجیتال با ورودی آنالوگ محسوب می شوند از این رو تلاشهای فراوانی برای افزایش سرعت ...
In this paper we establish some criteria to decide when a discrete memoryless channel admits a metric in such a way that the maximum likelihood decoding coincides with the nearest neighbour decoding. In particular we prove a conjecture presented by M. Firer and J. L. Walker establishing that every binary asymmetric channel admits a matched metric.
This study is concerned with the peristaltic motion of a Maxwell fluid in an asymmetric compliant channel. The channel asymmetry is created because of peristaltic wave trains of different amplitudes and phases on the channel walls. Mathematical model of the governing problem is first presented and then important phenomenon of "mean flow reversal" is examined. The variations of the interesting p...
In this paper peristaltic transport of a power law fluid in an asymmetric channel bounded by permeable beds is studied under long wavelength and low Reynolds number assumptions. The channel asymmetry is produced by choosing the peristaltic wave train on the walls to have different amplitude and phase due to the variation of channel width, wave amplitudes and phase differences. Expressions for t...
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