نتایج جستجو برای: symmetric compound channel

تعداد نتایج: 426740  

2015
Karthikeyan Bhargavan Antoine Delignat-Lavaud Alfredo Pironti

Compound authentication protocols, such as EAP in IKEv2 or SASL over TLS, bind application-level authentication to a transport-level authenticated channel in order to obtain strong composite authentication under weak trust assumptions. Despite their wide deployment, these protocols remain poorly understood, leading to several credential forwarding man-in-themiddle attacks. We present formal mod...

Journal: :CoRR 2008
Chiachi Huang Viveck R. Cadambe Syed Ali Jafar

We explore the capacity and generalized degrees of freedom of the two-user Gaussian X channel, i.e. a generalization of the 2 user interference channel where there is an independent message from each transmitter to each receiver. There are three main results in this paper. First, we characterize the sum capacity of the deterministic X channel model under a symmetric setting. Second, we characte...

Journal: :international journal of advanced design and manufacturing technology 0
mehdi salmanitehrani moslem bahrami

deformation length is one of the most important parameters in cold roll-forming process, which plays a fundamental role in determining the inter-distance between the stations and rate of deformation. deformation length was first introduced by bhattacharyya. he also obtained a closed-form relation for this length in roll-forming of symmetric channel section. in this paper, deformation length in ...

Journal: :CoRR 2017
Arash Gholami Davoodi Syed Ali Jafar

The generalized degrees of freedom (GDoF) of the two user symmetric multiple input multiple output (MIMO) interference channel (IC) are characterized as a function of the channel strength levels and the level of channel state information at the transmitters (CSIT). In this symmetric setting, each transmitter is equipped with M antennas, each receiver is equipped with N antennas, and both cross ...

Journal: :bulletin of the iranian mathematical society 2011
a. j. frankild s. sather-wagstaff a. taylor

we investigate buchbaum and eisenbud's construction of the second symmetric power $s_r(x)$ of a chain complex $x$ of modules over a commutative ring $r$. we state and prove a number of results from the folklore of the subject for which we know of no good direct references. we also provide several explicit computations and examples. we use this construction to prove the following ...

2009
Amir Taheri Sayed Mojtaba Moosavi

The title compound, C(48)H(43)N(7), is a polyaza-polycyclic compound with a near-C(2) symmetric skeleton. In the crystal, a N-H⋯π inter-action occurs.

2008
D. H. Jeon S. Greenway J. W. Van Zee

Computational fluid dynamics (CFD) simulations were performed for four 10 cm2 serpentine flow-fields with single channel, double channel, cyclic-single channel, and symmetric-single channel patterns to investigate the effect of flow-field design. High and low inlet humidity operating conditions were studied by calculating the distributions of overpotentials, current density distribution, and me...

Journal: :IEEE Trans. Information Theory 1996
Alexander V. Kuznetsov Francis Swarts A. J. Han Vinck Hendrik C. Ferreira

In the first part of the correspondence we derive an upper bound on the undetected error probability of binary ( n , k ) block codes used on channels with memory described by Markov distributions. This bound is a generalization of the bound presented by Kasami et al. for the binary symmetric channel, and is given as an average value of some function of the composition of the state sequence of t...

Journal: :CoRR 2008
Johannes B. Huber Thorsten Hehn

We consider coded transmission over a memoryless channel with some fixed capacity C and derive properties of channel coding schemes leading to the lowest bit error rate and frame error rate, respectively. The resulting overall optimum channels (including encoder, underlying channel, and decoder) behave like a binary symmetric channel and a fully bursty channel (block binary erasure channel), re...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده علوم پایه 1393

چکیده : دو گیاه perovskia abrotanoides karel و zeravschania aucheri در سایه تحت جریان ملایم هوا خشک شدند. اسانس گیری از گیاهان خشک شده توسط دو روش تقطیر با آب و میکرواستخراج فاز جامد در فضای فوقانی انجام گرفت و اسانس ها با استفاده ار روش کروماتوگرافی گازی- طیف سنج جرمی (gc-ms) مورد تجزیه و تحلیل قرار گرفتند. ترکیبات عمده شناسایی شده در اسانس برگ و گل و ساقه گیاه p.abrotanoides عبارتند از: ...

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