Performance Enhancement ofaDBSreceiver using Hybrid Approaches inaReal-Time Environmente
Sung‐Hoon Kim · 2006
A Digital Broadcasting Satellite (DBS)receiver waytoenhance performance fordigital broadcasting receivers. converts digital A/Vstreams received froma satellite to Thus, mostofdigital broadcasting receivers areimplemented analog NTSCA/Vsignals inreal-time. Multi-tasking isan bymulti-task programming methodology forperformance efficient waytoimprove theutilization oftheprocessor core in optimization under real-time OSenvironment. Inthis paper, real-time applications. Inthis paper, wepropose ahybridwepresent theperformance enhancement ofaDBSreceiver approach withabalanced trade-off between hardware kernelusinghybridapproaches witha balanced trade-off of andmulti-tasking programming to increase a systemmicroprocessor whichisbuilt inon-chip microkernel and throughput. First, theschedulability ofthecritical hard multi-tasking software. Taskscheduling isoneofthemost real-time tasks intheDBS receiver isverified byusing a fundamental functions ofoperating systems andusually simple feasibility test. Then, several soft real-time tasks are implemented bysoftware. Unfortunately, theoverhead oftask thoughtfully programmed tosatisfy functional requirements of scheduling isnottrivial inmostreal-time systems. Butinthis thesystem.