Sentence examples for downlink system from inspiring English sources

In order to increase the transmission rate of downlink system, it is necessary to study mathematical model of the downlink communication channel.

In this paper, we present a robust beamforming design to examine the weighted sum-rate maximization (WSRM) problem in a multicell massive MIMO downlink system for 5G communications.

In this paper, we present a robust beamforming design to tackle the weighted sum-rate maximization (WSRM) problem in a multicell multiple-input multiple-output (MIMO) – non-orthogonal multiple access (NOMA) downlink system for 5G wireless communications.

Although many patents have introduced the principle of bypass downlink system for automatic drilling, and the downlink systems have been used to communicate from the surface equipment to the bottom-hole-assembly (BHA) for thousands of meters, there are few literature reports of propagation theory of the downlink telemetry.

In this paper, a frequency-domain model of the downlink communication for the bypass downlink system is established based on the transfer matrix method, which describes the relationships between the transmitted flow rate pulses from the downlink equipment on the surface and the received voltage signals from downhole turbine generator, and can be used to predict downhole signal waveform.

Figure 1 Downlink system transmission procedure.

➢ We consider a new multicell structure for the downlink system.

Figure 1 RBF MU-MIMO downlink system model.

Again, the downlink equivalent single-user MIMO system, however, is not the original downlink system.

In this section, we present a low-complexity and small-sized feedback multiple-antenna downlink system.

Consider a wireless point-to-multipoint downlink system supporting multicast service for a group of users.