Sentence examples for coherent channel from inspiring English sources

Differential encoding is a widely used technique in the context of orthogonal frequency division multiplexing (OFDM) as an alternative to coherent channel estimation and equalization.

Therefore, exploiting the proposed methodology and recognizing the frequency margins of PU transmissions, SUs are able to select coherent secondary channels, hence, achieving increased expected availability and experiencing less reconfiguration costs.

Moreover, in the coherent receivers [1], channel equalizers [5], and transmit beamformers [6], the perfect knowledge of the channel is usually needed.

The channel coherent time is 200 symbol times.

Note that Lc is determined by the product of channel coherent time and the train speed.

Therefore, during the channel coherent time, a part of the resource has to be assigned to the pilot sequences to do the channel estimation job.

The period of sensing slot is set to be Ts, the sampling period is illustrated by τ, and the channel coherent time is denoted by Tc.

This method should work well when transmissions of the AP happen in channel coherent time, which typically ranges from 15 to 100 m s [10,29].

The trend of this enhancement is almost coherent for each channel and appears to be related to the variations of high-energy electron fluxes.

Therefore, we can increase to reduce the estimation noise within the channel coherent time; however, this will result in a data throughput reduction.

However, as indicated by the high-speed rail channel coherent time (shown in Figure 1), with the increase of train speed and carrier frequency, the radio channel characteristics varies more rapidly and significantly along the high-speed rail line.