Journal ArticleDOI
Structured Network Coding and Cooperative Wireless Ad-Hoc Peer-to-Peer Repair for WWAN Video Broadcast
TLDR
A network-coding-based cooperative repair framework for the ad-hoc peer group to improve broadcast video quality during channel losses by first imposing network coding structures globally, and then selecting the appropriate video streams and network coding types within the structures locally so that repair can be optimized for broadcast video in a rate-distortion manner.Abstract:
In a scenario where each peer of an ad-hoc wireless local area network (WLAN) receives one of many available video streams from a wireless wide area network (WWAN), we propose a network-coding-based cooperative repair framework for the ad-hoc peer group to improve broadcast video quality during channel losses. Specifically, we first impose network coding structures globally, and then select the appropriate video streams and network coding types within the structures locally, so that repair can be optimized for broadcast video in a rate-distortion manner. Innovative probability-the likelihood that a repair packet is useful in data recovery to a receiving peer-is analyzed in this setting for accurate optimization of the network codes. Our simulation results show that by using our framework, video quality can be improved by up to 19.71 dB over un-repaired video stream and by up to 5.39 dB over video stream using traditional unstructured network coding.read more
Citations
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Journal ArticleDOI
Video Transport Evaluation With H.264 Video Traces
Patrick Seeling,Martin Reisslein +1 more
TL;DR: This tutorial introduces a trace-based evaluation methodology for the network transport of H.264 encoded video and gives an overview of the typical video traffic and quality characteristics ofH.264 encode video.
Journal ArticleDOI
Unequal Error Protection Random Linear Coding Strategies for Erasure Channels
TL;DR: This paper provides the performance analysis of unequal error protection (UEP) random linear coding (RLC) strategies designed for transmission of source messages containing packets of different importance over lossy packet erasure links by introducing the probabilistic encoding framework.
Journal ArticleDOI
Energy-Aware Cooperative Content Distribution over Wireless Networks: Design Alternatives and Implementation Aspects
TL;DR: The main alternatives that shape the design of cooperative content distribution architectures with focus on energy efficiency include content segmentation, long-range and short-range distribution strategies, grouping of theMTs into cooperating clusters, single hop and multihop communications among the MTs, resource allocation, fairness considerations, and network dynamics.
Proceedings ArticleDOI
Multisource dissemination in content-centric networking
TL;DR: This paper addresses some key challenges of CCN-NC's design, such as format of data message, naming, forwarding strategy and communication scheme, and validates the architecture in the final part of the paper.
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