Performance Analysis and Evaluation of H.264 Video Streaming over Multi-Hop Wireless Networks

Li, Deer; Pan, Jianping

doi:10.1109/glocom.2008.ecp.957

Cited by 8 publications

(5 citation statements)

References 12 publications

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“…Measurement studies on video performance over wireless networks have also appeared [24], [25]. The measurement results demonstrated the difficulties and challenges in supporting video streaming over wireless networks with contention-based MAC, which calls for in-depth analytical work to provide guidelines and insights for such applications.…”

Section: Introductionmentioning

confidence: 99%

A hybrid reservation/contention-based MAC for video streaming over wireless networks

Zhang

Ruby

Pan

et al. 2010

IEEE J. Select. Areas Commun.

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Abstract-To reserve or not for bursty video traffic over wireless access networks has been a long-debated issue. For uplink transmissions in infrastructure-based wireless networks and peer-to-peer transmissions in mesh or ad-hoc networks, reservation can ensure the Quality-of-Service (QoS) provisioning at the cost of a lower degree of resource utilization. Contentionbased Medium Access Control (MAC) protocols are more flexible and efficient in sharing resources by bursty traffic to achieve a higher multiplexing gain, but the performance may degrade severely when the network is congested and collisions occur frequently. More and more wireless standards adopt a hybrid approach, which allows the coexistence of resource reservation and contention-based MAC protocols. However, how to costeffectively support video traffic using hybrid MAC protocols is still an open issue. In this paper, we first propose how to use hybrid MAC protocols to support video streaming over wireless networks. Then, we quantify the performance of video traffic over wireless networks with contention-only, reservation-only, and hybrid MAC protocols, respectively. Admission regions for video streams with these three approaches are obtained. Using the standard WiMedia MAC protocols as an example, extensive simulations with a commonly-used network simulator (NS-2) and real video traces are conducted to verify the analysis. The analytical and simulation results reveal the tradeoff between reservation and contention-based medium access strategies, and demonstrate the effectiveness of the hybrid approach.

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Section: Introductionmentioning

confidence: 99%

A hybrid reservation/contention-based MAC for video streaming over wireless networks

Zhang

Ruby

Pan

et al. 2010

IEEE J. Select. Areas Commun.

Self Cite

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show abstract

“…Multi-hop WLANs can improve the coverage and performance to certain extent [1], but they are still not sufficient to support multiple, high-quality video streams to simple devices. Also, most WLANs products on the market including IEEE 802.11n only support contention-based MAC, and even with IEEE 802.11e prioritization, there is no performance guarantee for video traffic.…”

Section: Background and Related Work A Video Streaming Over Wirementioning

confidence: 99%

Video Streaming with PCA and Hard vs Soft DRP

Ruby

Pan

2010

2010 IEEE Global Telecommunications Conference GLOBECOM 2010

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Video streaming over wireless links is a challenging issue due to the stringent quality-of-service requirement of video traffic and the contention nature of wireless media with limited channel resources. Various wireless Media Access Control (MAC) protocols have been proposed, and most of them follow either the contention-based or contention-free approach. In this paper, we propose to stream video traffic over both contention-based and contention-free MAC protocols, exampled by WiMedia UWB Prioritized Contention Access (PCA) and Distributed Reservation Protocol (DRP), and then evaluate the performance of such an approach with extensive simulation. The novelty of our approach is to use both PCA and DRP for every single video stream by reserving well below the peak data rate and handling traffic burst through reduced contention. The simulation results further reveal the tradeoff between hard and soft DRP with single or dual buffer on the performance of video streaming.

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“…For simplicity, in this paper, we assume that vehicles are homogeneous, that is, they have the same packet generation rate, and the same source-destination distance [13]. For each vehicle, it is selected by the same number of neighbors as the forwarder, hence, it has the same amount of traffic to forward, and the same packet arrival rate.…”

Section: Assumption Of Homogeneitymentioning

confidence: 99%

Delay-Aware Transmission Range Control for VANETs

Chigan

2010

2010 IEEE Global Telecommunications Conference GLOBECOM 2010

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End-to-end delay is critical for the real-time safety message delivery in Vehicular Ad Hoc Networks (VANETs). In this paper, we present an analytical model to evaluate the impact of transmission range on the end-to-end delay in 802.11p-based VANETs. Compared with the previous works, our model derives a concise expression of the transmission delay in saturated networks, and obtains the service rate of non-saturated networks with novel methodology. To the best of our knowledge, it is the first complete analytical model that reveals the significant end-toend delay difference between saturation and non-saturation cases.

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Performance Analysis and Evaluation of H.264 Video Streaming over Multi-Hop Wireless Networks

Cited by 8 publications

References 12 publications

A hybrid reservation/contention-based MAC for video streaming over wireless networks

A hybrid reservation/contention-based MAC for video streaming over wireless networks

Video Streaming with PCA and Hard vs Soft DRP

Delay-Aware Transmission Range Control for VANETs

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