Mobile devices themselves can also be equipped with special sensing circuitry to detect what frequencies other cellphones are using, and to choose a frequency that is less crowded, he said.
Similarly, there are several considerations in choosing a frequency band for a wireless system, such as background noise, antenna size, and cost.
By choosing a frequency which is an integer multiple of ω0, the combined co-array positions are guaranteed to be integer multiples of d0.
What is more, in order to avoid being caught and grab network resources for maximizing attack effect, some malicious nodes would elaborately choose a frequency at which they participate in the cooperation to cheat normal nodes.
The authors in [21] used a fuzzy logic method to create a table for channel reservation; thus, when a handoff takes place, the SU can quickly choose a frequency channel which is available to continue with the data transmission, and as a consequence, reduces the handoff latency.
Special care was taken to choose a frequency pair that elicited similar spike counts when presented individually, to ensure that all differences in response were solely due to the statistics of the stimulus ensemble (Fig. 1).
For (i), as per Figure 5a, we choose a frequency of 400 kHz, wherein the HTCD strain exhibits strong pDEP behavior, while the NTCD strain continues to exhibit substantial nDEP.
The first technique reduces the complexity of the problem by increasing the spatial step used to sample the scenario, that is, it chooses a simulation frequency lower than that of the real system.
While the use of a specially designed waveform, the Alltop sequence, is suggested in[19] to design a high-resolution radar using CS, the author in[23] chooses a stepped-frequency signal model.
In such a scheme, each secondary user senses channels and then chooses an idle frequency channel to transmit data, as if no other secondary user exists.
