Moreover, the Session Protocol Data Unit (SPDU) transfer delay as a function of normalized distance from Node B is shown in Figure 4.
The SPDU t ransfer delay with RR scheme is also shown below.
In this paper, we have analyzed the performance of HSDPA system under various scheduling schemes focusing on service throughput, fairness, average user throughput, SPDU transfer delay, and retransmissions using computer simulations.
The record was awarded based on the Orions 80-hour, 2-minute and 52-second flight in December 2014.The compact, lightweight SPDU is capable of distributing 288A at 28 VDC power to up to 54 electrical loads.
While the main purpose of the AMETEK SPDU is to provide circuit and wiring protection, the highly flexible unit offers other features, including arc-fault detection, pulse width modulation, remote load power control, load power monitoring, and automated load shedding, along with prognostic and diagnostic maintenance capabilities.
Applications for the SPDU include distributing power to cabin/cockpit lighting; door, heater, potable water, and pump controls; fuel balancing and fire suppression systems; surface actuator controls; and ventilation fans among others.