This paper deals with dynamic voltage and frequency scaling (DVFS) in mobile multimedia services. The multimedia\r\nservices that consume a large amount of energy cannot be continuously used in mobile devices because of battery\r\nlimitation. The DVFS has been applied to multimedia services in previous studies. However, they have only\r\naddressed the issue of power saving and overlooked the fact that mobile multimedia services are sensitive to\r\ndelays. The proposed method is intended to apply DVFS to multimedia services considering potential delays.\r\nAnother problem with previous studies is that either separate devices have been employed or appropriate\r\nfrequency scaling values have been determined through complicated calculation processes to apply DVFS to\r\nmultimedia services. On the contrary, the proposed method determines appropriate frequency scaling values using\r\nthe characteristics of multimedia contents without employing any separate devices or undergoing complicated\r\ncalculation processes. This has the advantage of allowing DVFS to be applied to real-time multimedia content. The\r\npresent paper proposes a DVFS application method that divides multimedia services into video conferences, which\r\nare real-time services, and video streaming, which is a non-real-time service, and that reduces energy consumption\r\nin a simple manner while considering the constraints of service delays.
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