However, since the minimum iteration count will be 19 in this case, we may skip the parity check and tentative checking operations up to the 19th iteration without affecting performance.
Additional checks with NASA's Spitzer Space Telescope provided tentative confirmation that the faint object found in the image, cataloged as UDFj-39546284 (the numbers refer to its position in the sky), is a very remote galaxy.
The poem is in terza rima, Dante's pirouetting form, which suggests tentative progress checked by partial reversal.
For instance, when the SNR is 2.5 dB, the minimum iteration count is 4. Therefore, until the LDPC decoding has repeated four times, the parity check and tentative operations can be skipped.
Figure 10 shows the results when we compared the power dissipation of the proposed design when DVFS was applied and the power dissipation of the work proposed in [16], where only early termination and computation (parity check and tentative operations) skips for low SNR values were applied.
Up to the fourth iteration, we may omit parity-check and tentative operations since we have no performance degradation.
When we perform parity-check and tentative operations at every iteration, the amount of power consumption is 256.63 mW.
When we skip parity-check and tentative operations until the fourth iteration, the amount of power consumption becomes 235.43 mW.
In this article, we propose a novel adaptive architecture that selectively carries out the tentative decision and parity-check operations depending on estimated SNR values to reduce power consumption.
If we compute these functions only if the SNR estimation falls within a certain range, then we can avoid excessive power consumption due to unnecessary parity checks and tentative decisions.
