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This paper proposes the new enhanced 2-D(2-Dimension) FEC scheme. It analyzes the probability of entire packet loss rate of the existing 2-D FEC by mathematical modeling, finds the problem of the existing 2-D FEC, and deduces the new enhanced 2-D FEC scheme that reduces the entire packet loss probability.

In this paper, a major factor in determining voice quality that corresponds to the jitter and dejitter algorithm for removing jitter will be described. We analyze legacy dejitter algorithm and propose the study applying Time Series Model to improve performance of the dejitter algorithm.