PACKET SCHEDULING ALGORITHM FOR REALISTIC TRAFFIC MODEL OF REAL-TIME VIDEO STREAMING SERVICE IN OFDMA SYSTEM WITH INTEGRATED TRAFFIC SCENARIO

초록

In this paper, the problem of packet scheduler design for the transmission of multiple real-time (RT) video streaming services over an orthogonal frequency division multiple access (OFDMA) system is addressed A new sum of packet (SoP) scheme making the best use of an important characteristic of the RT video streaming service such as a regular length (in seconds) of de-jitter buffer window is introduced As a result, this paper investigates the influence of the correlation between special traffic feature in realistic traffic model and packet scheduler design On performance Improvement satisfying the quality of service (QoS) requirement in OFDMA system Simulation results show that the packet scheduler design is closely connected with the traffic characteristic an realistic traffic model since the proposed scheme provides better performance than the existing scheme in terms of outage probability and average packet loss probability without loss of per-cell throughput

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