Journal ArticleDOI
Wireless multimedia delivery over 802.11e with cross-layer optimization techniques
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TLDR
A cross-layer mapping algorithm to improve the quality of transmission of H.264 (a recently-developed video coding standard of the ITU-T Video Coding Experts Group) video stream over IEEE 802.11e-based wireless networks is presented.Abstract:
The use of wireless networks has spread further than simple data transfer to delay sensitive and loss tolerant multimedia applications. Over the past few years, wireless multimedia transmission across Wireless Local area Networks (WLANs) has gained a lot of attention because of the introduction of technologies such as Bluetooth, IEEE 802.11, 3G, and WiMAX. The IEEE 802.11 WLAN has become a dominating technology due to its low cost and ease of implementation. But, transmitting video over WLANs in real time remains a challenge because it imposes strong demands on video codec, the underlying network, and the Media Access Control (MAC) layer. This paper presents a cross-layer mapping algorithm to improve the quality of transmission of H.264 (a recently-developed video coding standard of the ITU-T Video Coding Experts Group) video stream over IEEE 802.11e-based wireless networks. The major goals of H.264 standard were on improving the rate distortion and the enhanced compression performance. Our proposed cross-layer design involves the mapping of H.264 video slices (packets) to appropriate access categories of IEEE 802.11e according to their information significance. We evaluate the performance of our proposed cross-layer design and the results obtained demonstrate its effectiveness in exploiting characteristics of the MAC and application layers to improve the video transmission quality.read more
Citations
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Journal ArticleDOI
Quality of service provision in mobile multimedia - a survey
Hongli Luo,Mei-Ling Shyu +1 more
TL;DR: This paper provides a survey of QoS provision in mobile multimedia, addressing the technologies at different network layers and cross-layer design, and focuses on the QoS techniques over IEEE 802.11e networks.
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A Survey on Multimedia-Based Cross-Layer Optimization in Visual Sensor Networks
TL;DR: This paper surveys recent research on multimedia-based cross-layer optimization, presenting the proposed strategies and mechanisms for transmission rate adjustment, congestion control, multipath selection, energy preservation and error recovery.
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Recent advances in multimedia networking
TL;DR: This paper presents some of the recent advances in multimedia networking focusing primarily on areas that have been receiving attention recently and are expected to continue to generate further interests in coming years.
Journal ArticleDOI
Ipb-frame adaptive mapping mechanism for video transmission over IEEE 802.11e WLANs
TL;DR: Simulation results showed the superior performance of the proposed AMM by comparing with three other existing mechanisms in terms of three objective metrics.
Journal ArticleDOI
QoS/QoE Support for H.264/AVC Video Stream in IEEE 802.11ac WLANs
TL;DR: This paper proposes a multipolling controlled access (MPCA) scheme to guarantee the latency in delivering important video frames while reducing transmission overhead and proposes a cross-layer designed quality adjustment strategy to maximize the visual experience.
References
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