نتایج جستجو برای: fec
تعداد نتایج: 2532 فیلتر نتایج به سال:
Superdense coding promises increased classical capacity and communication security but this advantage may be undermined by noise in the quantum channel. We present a numerical study of how forward error correction (FEC) applied to the encoded classical message can be used to mitigate against quantum channel noise. By studying the bit error rate under different FEC codes, we identify the unique ...
3rd Generation Partnership Project specified Application Layer Forward Error Correction (AL-FEC) to be used for Enhanced Multimedia Broadcast Multicast Services (E-MBMS) in Long Term Evolution (LTE) networks. Specifically, Raptor coding is applied to both streaming and file delivery services. This article focuses on streaming services and investigates the optimum configuration of the AL-FEC mec...
The cycling performance and SEI composition of Si nano-particle anodes in electrolytes containing 5–25 wt% fluoroethyelene carbonate (FEC) and 3–6 wt% vinylene carbonate (VC) has been investigated by a combination of by electrochemical cycling, electrochemical impedance spectroscopy, IR-ATR and XPS. The incorporation of FEC or VC changes the cycling performance, impedance, electrode morphology,...
In Wireless sensor network, since the media is wireless there will be burst errors which leads to high bit error rate that affect the throughput. Wireless sensor networks drop the packets due to propagation errors that lead to retransmission traffic. This paper evaluates the effect of adaptive FEC in Wireless sensor networks. Adaptive FEC technique improves the throughput by dynamically tuning ...
Protoporphyrinogen IX oxidase (PPO) catalyzes the last common step in chlorophyll and heme synthesis, and ferrochelatase (FeC) catalyzes the last step of the heme synthesis pathway. In plants, each of these two enzymes is encoded by two or more genes, and the enzymes have been reported to be located in the chloroplasts or in the mitochondria. We report that in the green alga Chlamydomonas reinh...
Gastrointestinal nematodes (GIN) severely affect small ruminant production worldwide. Increasing problems of anthelmintic resistance have given strong impetus to the search for alternative strategies to control GIN. Selection of animals with an enhanced resistance to GIN has been shown to be successful in sheep. In goats, the corresponding information is comparatively poor. Therefore, the prese...
This contribution discusses the bene ts of a cell level forward error correction FEC scheme in the AAL An FEC scheme will bene t real time needs of multimedia applications as well as reliable data communications An ATM network performance degrades rapidly with increasing cell loss or the bit error rate BER of the medium The achievable throughput for reliable services also deteriorates with incr...
The authors noticed that the values of exchange current density in Figures 1 c, 3 b, S6 and S16 were calculated incorrectly due to reverse x y axes during linear fitting. corrected by equation log i = (η−a)/b, presented revised (see Supporting Information published online along with this Corrigendum). Revised versions for c b are shown below. Instead having a negative correlation FEC content, a...
The use of scalable video with layered multicast has been shown to be an effective method to achieve rate control in heterogeneous networks. In this paper, we propose the use of layered FEC as an error control mechanism in a layered multicast framework. By organizing FEC into multiple layers , receivers can obtain different levels of protection commensurate with their respective channel conditi...
A highly cephem-resistant Escherichia coli strain, FP1546, isolated from the fecal flora of laboratory dogs previously administered beta-lactam antibiotics was found to produce a beta-lactamase, FEC-1, of 48-kilodalton size and pI 8.2. FEC-1 hydrolyzed cefuroxime, cefotaxime, cefmenoxime, and ceftriaxone, as well as the enzymatically less-stable antibiotics cephaloridine, cefotiam, and cefpiram...
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