Novel Mechanism for Smoothing and Efficient Transport of SVC Coded Video over Optical Burst Switching Network
Muhammad Waheed · 2009
The Scalable Video Coding (SVC) extension of H.264/AVC has higher compression efficiency and supports a wide range of scalability modes. But, due to invent of improved compression tools like motion compensated predictions and hierarchical B-frames, SVC suffers from higher bit rate variabilities as compared to the preceding encoders, making its network transport more challenging. Different mitigation techniques employed in the codecs, to eliminate such traffic variabilities, increase computational load as well as introduce extra coding delays. We propose a novel mechanism to use Optical Burst Switching (OBS) Network inherent capability of aggregating incoming packets at its ingress edge node for smoothing of SVC variable bit rate traffic thus resulting in efficient transport of SVC encoded VBR stream over the OBS core network and also reducing computational complexities of SVC codec.