Journal ArticleDOI
VMP: A MAC Protocol for EPON-Based Video-Dominated FiWi Access Networks
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TLDR
This paper introduces and evaluates a comprehensive video MAC protocol (VMP) to efficiently deliver prerecorded video downstream to wireless consumers over a FiWi network in the presence of voice and data upstream and downstream traffic.Abstract:
Optical and wireless network technologies are expected to converge in the near to midterm, giving rise to bimodal fiber-wireless (FiWi) broadband access networks. In triple-play (voice, video, and data) service scenarios for such FiWi access networks, video traffic will likely dominate due to the widely predicted increase in video network services and the high traffic volume of compressed video compared to voice and data services. In this paper, we introduce and evaluate a comprehensive video MAC protocol (VMP) to efficiently deliver prerecorded video downstream to wireless consumers over a FiWi network in the presence of voice and data upstream and downstream traffic. VMP consists of three main novel components: (i) frame fragmentation in conjunction with hierarchical frame aggregation for efficient MAC frame transport over the integrated optical and wireless network segments, (ii) multi-polling medium access control for upstream voice and data packets and acknowledgements for downstream video packets, and (iii) prefetching of video frames over the optical and wireless network segments in conjunction with hybrid reservation/contention-based medium access. Our simulation results indicate that VMP achieves significant improvements in throughput-delay performance for all three traffic types as well as reductions in the playback starvation probability for video traffic compared to existing state-of-the-art MAC mechanisms.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.
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New Perspectives on Future Smart FiWi Networks: Scalability, Reliability, and Energy Efficiency
TL;DR: A comprehensive survey of recent progress and ongoing research works in the aspects of network architecture, QoS provisioning, scalability improving, reliability enhancing, energy saving, as well as standardization activities and case studies is provided.
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Architectures and Bandwidth Allocation Schemes for Hybrid Wireless-Optical Networks
Antonios Sarigiannidis,Maria Iloridou,Petros Nicopolitidis,Georgios I. Papadimitriou,Fotini-Niovi Pavlidou,Panagiotis Sarigiannidis,Malamati Louta,V. Vitsas +7 more
TL;DR: This survey endeavors to classify the main features of wireless-optical integration and provides a comprehensive compilation of the latest architectures, integrated technologies, QoS features, and dynamic bandwidth allocation (DBA) schemes.
Journal ArticleDOI
Video traffic characteristics of modern encoding standards: H.264/AVC with SVC and MVC extensions and H.265/HEVC.
Patrick Seeling,Martin Reisslein +1 more
TL;DR: This study is the first to examine the H.265/HEVC traffic variability for long videos and illustrates the video traffic characteristics and statistical multiplexing of scalable video encoded with the SVC extension of H.264/AVC.
References
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Journal ArticleDOI
Finite-state Markov channel-a useful model for radio communication channels
Hong Shen Wang,Nader Moayeri +1 more
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