Sentence examples for primary user over from inspiring English sources

Memoryless model: the occupancy of primary user over a sub-channel is an i.i.d.i.d

c- Spectrum overlay (interference mitigating): the SU (cognitive transmitter) can transmit simultaneously with primary user over the same spectrum.

The proposed algorithm uses the unique CP property of OFDM signals to detect the presence of a primary user over frequency selective channels.

Therefore, for simplicity of analysis, we consider only Markov chain in this paper)with states (busy: the channel is occupied by primary users and cannot be used by secondary users) and (idle: there is no primary user over this channel).

In this paper, the following two possible models are used for the occupancy process on each sub-channel: Memoryless model: the occupancy of primary user over a sub-channel is an i.i.d.i.d

However, given a specific primary user over its working band, the spectral attenuation may be only 30 dB at the expense of the obvious spectrum efficiency decline in nonprimary bands.

Transmitter and receiver are considered the primary users over all of the considered channels and are able to tune to the same channel at a given time instance.

(ii) We assume that the activity of primary users over each channel is a Markov chain (A more reasonable model for the activity of primary users is the semi-Markov chain. The corresponding analysis is more tedious but similar to that in this paper.

In this scenario, the transmitter is the primary user transmitting over an allocated band while the receiver acts as a secondary user sensing this licensed band.

We consider the strategic behavior of secondary users (SUs) in a cognitive radio system where SUs opportunistically share a single primary user (PU) band over a coverage area.

In this paper, we have proposed a scheduling algorithm that designs the transmission probabilities of a secondary user transmitting over a primary user channel to a common receiver.