spreading factor


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spreading factor

[′spred·iŋ ‚fak·tər]
(biochemistry)
References in periodicals archive ?
In order to verify the accuracy of the above numerical simulation and the rationality of the influencing factors on the spreading factor, a different combination with orthogonal testing was selected, and the obtained function was verified by a physical experiment.
Caption: Figure 5: Bit energy enhancement percentages of SRMR-DCSK compared to DCSK for the spreading factor [beta] = 100.
Our analysis revealed that, at half bit energy, the proposed scheme outperforms DCSK and CDSK at average of 1.25 db while DCOOK shows superior performance compared to COOK at wide range of spreading factor. Additionally, DCOOK offers double data rate compared to DCSK.
Equation (12) shows that the spreading factor [beta] reduces the terms W and X, which are generated by other users' signals.
The number of channels used for transmission is the same as the spreading factor, which is the number of digits in the user code, so the entire pattern of plus and minus ones arrives at the destination for each transmission, in unison.
The relationship between symbol EVM and EVM at the chip level depends on the spreading factor. At low spreading factors (high data rates), chip modulation errors have a significant effect on symbol EVM, but at high spreading factors, chip modulation errors have very little effect on symbol EVM.
The actual number of bits depends on the data rate and hence the spreading factor. The 2n bits are mapped onto n QPSK complex symbols.