For example: retransmission-based mechanism has good energy efficiency, but the delay is very long; the delay of the network coding techniques and forward error correction is short, but the energy efficiency is not high.
Do you want to tell us anything about the monetary policy going forward?" "Let me say a few sentences so I won't delay them very long," said Yellen, to more laughter.
A major remaining challenge will also be to understand how the brain tracks delays on very long timescales such as those needed for publishing scientific papers.
In particular, this should focus on the 'tail' of delay where patients have very long delays (see Figures 2 and 3).
Second, the channel delay spread is very long due to the rich scattering environment.
OFDM, however, is very susceptible to Doppler shift, suffers from a large peak-to-average power ratio (PAPR), and requires large overhead when the channel delay spread is very long compared to the symbol period [4, 9].
We defined the lowest quartile as short treatment delay, followed by moderate, long and very long delay.
There was a significant difference in mortality between patients with a short delay, compared with those with a very long delay in the univariate analysis but when correcting for relevant factors this was no longer significant in the direct analysis.
Delay Tolerant Networks (DTNs) are characterized by very long delay paths and frequent network partitions.
It was therefore proposed that fur seals, which exhibit a phenotype where involution is delayed even after very long periods of milk stasis, may lack these factors in their milk, or may lack the machinery to initiate the involution response.
