Implementation of Adaptive Buffer in Video Receivers Using Network Processor IXP 2400

Abstract: New services such as non-interactive video streaming, which demand higher bandwidth have become popular with the introduction of broad band networks. But the quality of streamed video is impaired by the factors such as packet loss, congestion, delay and jitter in the network. Hence, to improve the video quality, an adaptive data rate based play out buffer management scheme is proposed. It mainly considers the play back time and play out buffer size of the video player used at the receiver. Moreover in recent designs, the Network Processors are used in a wide range of networking embedded systems, including multi service switches, routers and so on. The Network Processorses are fully programmable Processors which performs number of simultaneous operations. This ensures full network performance and also accommodates complex services on packet basis. Hence, the proposed scheme is implemented in the Network Processors, IXP 2400 and its performance is evaluated for different data rates. It is observed that the packet loss is reduced and the buffer utilization is improved