Cross-layer optimized wireless multicast for layered media

Kovacs, A.; Gódor, István

doi:10.1016/j.comnet.2008.12.008

Cited by 10 publications

(2 citation statements)

References 20 publications

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“…By means of extending the idea to a wireless relay network, in [8], packet delivery ratio and improve the visual quality are further increased by the properties of relays. Some protocols require the modification of hardware to utilize physical-layer information [7], [9], [10] and thus provide differential-quality video multicasting. Our work, however, proposes a softwarebased solution that can be deployed in existing WiFi APs.…”

Section: Related Workmentioning

confidence: 99%

Scalable video streaming for multicast in wireless networks

Chin

Chen

Huang

et al. 2015

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)

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Multicast video streaming in a wireless network allows a group of users to watch video and share the scarce bandwidth at the same time. Since the channel quality of each client may be different, it is difficult to control the perceived video quality in a multicast group. To ensure the whole group receives the data, some multicast mechanisms use the client with the worst channel quality as a reference to decide transmission speed. However, it may result in very low average video quality. This paper proposes a scheme, namely Scalable Video Multicast, to maximize the average perceived video quality in a multicast group in wireless networks. The proposed scheme uses the property that different modulation coding schemes provide different transmission speed and have different transmission distances. Scalable Video Coding (SVC) and transmission rate scheduling are exploited to improve the average video quality perceived by the clients. The base layers of video frames provide basic visual quality to the clients. Rate scheduling applied on the enhancement layers improves the average visual quality. Simulations show that the proposed rate scheduling for SVC blocks can improve the average perceived video quality of multicast clients and outperforms other mechanisms in the literature.

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Section: Related Workmentioning

confidence: 99%

Scalable video streaming for multicast in wireless networks

Chin

Chen

Huang

et al. 2015

2015 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS)

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“…For more robustness against topological changes in a wireless network, various multipath routing schemes have been extended to construction of multiple multicast trees, in order to leverage the structured redundancy in multiple-description coded video streams [19] [20] [21]. Studies have also indicated the benefit of cross-layer design for a single wireless video multicast session, for instance via joint optimization of power allocation, multicast tree construction, and rate allocation [22] [23].…”

Section: Related Workmentioning

confidence: 99%

Distributed Media-Aware Rate Allocation for Video Multicast Over Wireless Networks

Zhu

Schierl

Wiegand

et al. 2011

IEEE Trans. Circuits Syst. Video Technol.

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Abstract-A unified optimization framework for rate allocation among multiple video multicast sessions sharing a wireless network is presented. Our framework applies to delivery of both scalable and non-scalable video streams. In both cases the optimization objective is to minimize the total video distortion of all peers without incurring excessive network utilization. Our system model explicitly accounts for heterogeneity in wireless link capacities, traffic contention among neighboring links, as well as different video rate-distortion (RD) characteristics. The proposed distributed rate allocation scheme leverages cross-layer information exchange between the MAC and application layers to achieve fast convergence at the optimal, media-aware allocation.Performance of the proposed media-aware rate allocation protocol is compared against a heuristic scheme based on TCP-Friendly Rate Control (TFRC). In network simulations of standard-definition (SD) video streaming over single or multiple multicast trees, the proposed scheme consistently achieves higher overall video quality than the TFRCbased heuristics. When delivering scalable streams, the flexibility of perpeer rate adaptation inside each multicast tree yields a further slight improvement in overall video quality over multicast of non-scalable streams.Index Terms-video multicast, wireless 802.11 networks, scalable video coding (SVC), distributed rate allocation, cross-layer design

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An Architecture for Service Quality Management Using Cooperative Communications

Kim

Jeong

2013

Wireless Pers Commun

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Cross-layer optimized wireless multicast for layered media

Cited by 10 publications

References 20 publications

Scalable video streaming for multicast in wireless networks

Scalable video streaming for multicast in wireless networks

Distributed Media-Aware Rate Allocation for Video Multicast Over Wireless Networks

An Architecture for Service Quality Management Using Cooperative Communications

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