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NAND flash memory is widely used as a storage device because of its features: low power consumption, high degree of integration, outstanding durability, and high access rates. Unlike hard disk, however, flash memory requires of garbage collection which consists of the copying and erasion operations and lowers the storage device performance. This study suggests a new garbage collection policy, aiming...
This paper presents a new grassy effect generation approach. The grassy effect changes original image as the one behind the grass. A random number generation function is employed to decide the same of block and location of the pixel. Obtained various block size and pixel location yield unexpected grassy execution to the original image. The subjective and the objective image performances are compared...
3G Long Term Evolution, which aims for various mobile multimedia services provision by enhanced wireless performance, proposes the VoIP-based voice service through the PS domain. When delay and loss-sensitive VoIP traffic flows through the PS domain, more challenging technical difficulties are expected than in the existing 3G systems which provide the CS domain based voice service. Moreover, since...
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