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Time delay as well as error accumulation makes transmission of high-quality streaming media over multi-hop wireless networks more challenging. Since conventional TCP/IP-based protocol drops and retransmits the whole packet once error(s) occur above Physical Layer, which leads to long time delay and low efficiency in transmission, a new protocol for real-time streaming media transmission is proposed...
Network coding is an emerging and powerful solution that can significantly improve the throughput and power efficiency of wireless networks by allowing mixing of various traffic flows into a single packet. However, when network coding is applied, a packet will have to wait to be network-coded with others, which may result on large delay and packet-loss rate. It will bring negative influence to the...
During video streaming over packet-erasure network, packets may lose due to network congestion. Since video packets have different significance and validity for decoding, the streaming system is expected to transmit the most critical packets when congestion occurs. In this paper, a packet criticality model is proposed and then a video transmission framework based on this model is presented. The criticality...
Based on path diversity, Multi-Path Transmission (MPT) is an efficient method to improve delay and anti-error performance of streaming transmission in Wireless Mesh Network (WMN). This paper proposes a rate allocation algorithm among Multiple Descriptions (MD) based on Multiple Descriptions Coding (MDC) adopting H.264 technique, which presents the upper and the latter threshold for rate control to...
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