Error resilient concurrent video streaming over wireless mesh networks

Li, Danjue; Zhang, Qian; Chuah, Chen‐Nee; Yoo, Ben S.J.

doi:10.1631/jzus.2006.a0684

Cited by 13 publications

(10 citation statements)

References 18 publications

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“…scalable video coding and multiple descriptions video coding) and the parameters of the wireless network. In these works [1,[4][5][6], the rate-distortion model is usually used to capture the relationship between the video quality and the conditions in the network. Some of the recent works are as follows.…”

Section: General Video Streaming In Wmnmentioning

confidence: 99%

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Optimizing Patching‐based multicast for video‐on‐demand in wireless mesh networks

Xie

Hua

Ning

2009

Int J Communication

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SUMMARYIn this work, we study the application of video-on-demand (VoD) in wireless mesh networks (WMN), a next generation edge technology to provide broadband data access in residential, business and even citywise networks. We adopt a Patching-based multicast technique to better utilize the bandwidth resources in the mesh network. We optimize the Patching-based multicast by addressing two critical problems, namely, the Minimum Cost Multicast Tree (MCMT) problem and the Maximum Benefit Multicast Group (MBMG) problem. The MCMT problem is to find a MCMT in the network. We show that finding such a tree in the WMN can be formulated as a graph theory problem, which is to find the tree with minimum number of non-leaf nodes, and which spans all the nodes in the multicast group. We further prove the problem is NP-hard and propose a fast greedy algorithm to accommodate the real-time feature of the VoD application. We solve the MBMG problem by minimizing the communication of a Patching group in the entire network. A Markov model is proposed to capture the growth of the multicast group in the WMN. Simulation study results validate the proposed solutions of the two problems.

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Section: General Video Streaming In Wmnmentioning

confidence: 99%

“…This scheme can take advantage of path diversity in a WMN. Authors of [4] propose a multi-source multi-path video streaming system. Their assumption is that the video files have multiple copies in different clients, thus the diversity of the sources can improve the quality of the video session.…”

Section: General Video Streaming In Wmnmentioning

confidence: 99%

Optimizing Patching‐based multicast for video‐on‐demand in wireless mesh networks

Xie

Hua

Ning

2009

Int J Communication

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“…Such a characterization has been used as an initial step in modeling wireless ad hoc networks [4], [9], [12], [16]. If the topology of the network is large, the delay of collecting network-layer parameters could be a potential issue.…”

Section: Problem Descriptionmentioning

confidence: 99%

“…However, for the purpose of simulation, we model the delay using an exponential distribution with a probability density function (PDF) of , where is jointly decided by the link capacity and the traffic load. As in [9] and [16], we use the moment generating function (MGF) to compute the probability that a packet delivered on the path has an end-to-end delay longer than . Based on (3) and the PDF of , the MGF of is computed as (5) The PDF of can be computed as (6) Using (6), we can obtain as (7) By assuming the delay on each link to be independent of that of each other, the distribution of the end-to-end delay for the path can be approximated well by using the Gaussian distribution, according to the central limit theorem when the number of hops on the path is large.…”

Section: Problem Descriptionmentioning

confidence: 99%

Joint Optimal Multipath Routing and Rate Control for Multidescription Coded Video Streaming in Ad Hoc Networks

Xie¹,

Swamy

Ahmad

2008

IEEE Trans. Multimedia

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This paper studies an important problem, namely, the joint multipath routing and rate control for multidescription coded (MD-coded) video streaming in wireless ad hoc networks. In addition to selecting a pair of paths to optimize the expected end-to-end video quality, we also explore an optimal packet skipping strategy for the rate control in order to minimize the impact of the skipped packets on the quality of the video. The R-D hint information, consisting of the size of the packets in bits and the importance of the packets for reconstructing the video, is used to characterize the packets in an R-D sense. Since searching for paths to minimize the expected end-to-end video distortion by simultaneously considering the skipped packets prior to the transmission and those dropped/delayed during the transmission is a highly complex problem and is expected to be NP-hard, we develop a heuristic greedy-relaxation-based routing solution that enables the system to efficiently select near-optimal paths. Extensive simulation studies have been conducted to compare the performance of the proposed algorithm with that of several existing algorithms, showing the superior performance of the proposed one. Such a joint rate control and multipath routing approach provides an important methodology for high-quality real-time video streaming applications over ad hoc wireless networks.Index Terms-Ad hoc networks, multidescription (MD) coding, multipath routing, packet skipping, rate control, R-D hint, video streaming.

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“…Novel multicast routing metrics are proposed in [10] and [11], but are only tested in 802.11 based mesh network. In [12], a multi-source multi-path video streaming system is proposed. Their assumption is that the video files may have duplicate copies in different clients, thus the diversity of the sources can improve the quality of the VoD service.…”

Section: Related Workmentioning

confidence: 99%

Achieving True Video-on-Demand Service in Multi-Hop WiMax Mesh Networks

Bauer

Hurley

Waldvogel

2007

32nd IEEE Conference on Local Computer Networks (LCN 2007)

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In this work, we discuss how to support Video-onDemand service in multi-hop WiMax mesh networks. We are interested in the scenario that end users connect to the video servers through the base station of the multi-hop WiMax networks. We propose a model that can jointly solve the admission control and channel scheduling problems. Our proposed approach guarantees the required data rate is achieved for video streams, which is crucial for multimedia streaming applications. An efficient multicast routing technique is also proposed to minimize the bandwidth cost of joining a multicast tree. Furthermore, we adopt the application layer Patching technique to accommodate end users that join a video multicast group at different times. Overall, our solution efficiently utilizes the bandwidth resource of the networks and provides data rate guarantee for video streams. Simulation study shows that with the proposed approach, true Video-on-Demand in WiMax mesh networks can be achieved under high video request arrival rate.

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Error resilient concurrent video streaming over wireless mesh networks

Cited by 13 publications

References 18 publications

Optimizing Patching‐based multicast for video‐on‐demand in wireless mesh networks

Optimizing Patching‐based multicast for video‐on‐demand in wireless mesh networks

Joint Optimal Multipath Routing and Rate Control for Multidescription Coded Video Streaming in Ad Hoc Networks

Achieving True Video-on-Demand Service in Multi-Hop WiMax Mesh Networks

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