spreading factor


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spread·ing factor

(sprĕd′ĭng)
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Noun1.spreading factor - an enzyme (trade name Hyazyme) that splits hyaluronic acid and so lowers its viscosity and increases the permeability of connective tissue and the absorption of fluids
enzyme - any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions
References in periodicals archive ?
Time On Air and Current with different SFs Spreading Factor Time On Air [ms] Current [mA] SF12 1650 134 SF11 910 134 SF10 420 134 SF9 230 134 SF8 120 134 SF7 70 134 Table 2.
spreading code has a Programmable chip rates up to 60 Mchip/s and spreading factor from 3 to 65335.Modulation is BPSK/QPSK and raised cosine square root filter with 20% rolloff where Filter can be bypassed [17].
SPSS was used to carry out a one-dimensional regression analysis, and mathematical equations of the spreading factor and individual influencing factors were derived to obtain Equations (12) to (15):
The spreading factor in the DCSK system is defined as the number of chaotic samples used to spread each transmitted bit and is presented by 2[beta], where [beta] is an integer.
Keep the signal level at [E.sub.b]/[N.sub.o] = 11 dB and [E.sub.b]/[N.sub.o] = 16 dB and vary the spreading factor M.
Hence, the probability of error depends on the number of users (N), spreading factor (2[beta]), estimated channel coefficients ([Mathematical expression not reproducible.]), the signal to noise ratio ([E.sub.b]/[N.sub.0]), duty cycle of pulse noise jammer ([rho]), signal to jamming power ratio ([E.sup.b]/[P.sup.j]), and number of receiving antennas (M).
Effects of a serum spreading factor on growth and morphology of cells in serum-free medium.
The overall spreading factor can be defined as the multiplication of the repetition coder code rate R and the orthogonal sequence spreading factor [N.sub.SF.sup.PHICH].