Scalable Video Streaming over Mobile WiMAX

Juan, Hung-Hui; Huang, Hsiang-Chun; Huang, Chao‐Wei; Chiang, Tihao

doi:10.1109/iscas.2007.378372

Cited by 36 publications

(24 citation statements)

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“…Therefore, this simulation employs the simplified design as accepted by the H.264/AVC development team, JVT, which slightly differs [22] from that presented in [2]. To generate simulation results the network simulator ns2 v. 31 was used 4 with the NIST WiMAX module 5 . Each data point obtained is the average of ten runs.…”

Section: Methodsmentioning

confidence: 99%

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Channel adaptive video stream switching for broadband wireless links

et al. 2011

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This paper exploits H.264/Advanced Video Codec smooth stream switching to achieve robust video delivery across an IEEE 802.16 (WiMAX) broadband wireless link. As the wireless channel conditions vary over time, dynamic selection of bitrate and corresponding video quality will reduce the risk of harmful packet loss. Choice of stream-switching with Secondary SP-frames or SI-frames is investigated relative to the selection of quantization parameter (QP) values. To control the switching points at the WiMAX server, a feedback mechanism that monitors packet loss is applied. An adaptive ARQ scheme is alternatively exploited to protect switching frames against packet loss. The broadband wireless streaming system gives more protection to higher quality video, reduces delay and packet loss, and improves received video quality. In particular, for the QP values selected, results show that increased quality primary switching frames with SIframes bring a significant gain in video quality over the other switching schemes with secondary SP-frames, which in turn show an improvement over 'no switching' for a typical WiMAX channel with burst errors. Link delay is also reduced.

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Section: Methodsmentioning

confidence: 99%

“…In [5], the Scalable Video Coding (SVC) extension to the H.264 codec was used to improve received video quality over a WiMAX network. Multiple connections operated to send different quality layers of a scalable video stream.…”

Section: Introductionmentioning

confidence: 99%

Channel adaptive video stream switching for broadband wireless links

et al. 2011

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“…In Juan et al, 2007, multiple connections over an IEEE 802.16e link were used to send different layers of a scalable video stream. However, the scheme was only tested for two layers and quality testing does not appear to have accounted for lost packets.…”

Section: Related Researchmentioning

confidence: 99%

DCCP video streaming over multiple connections in the wireless internet

Al-Majeed

Fleury

2011

IJIPT

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Multiplexing a single video stream over several Datagram Congestion Control (DCCP) connections is a way of coping with wireless channel losses and traffic congestion in the wireless Internet, without the need for complex cross-layer intervention. Multi-connections introduce the need for data re-ordering at the receiver. This paper considers the potential delay at an uplink destination on the Internet and extends this to a scheme for user-to-user mobile device via the wired Internet. It also considers the impact on video quality of packet drops due both to channel loss and router buffer overflow, when the DCCP congestion controller is applied. Results for IEEE 802.16e (mobile WiMAX) broadband wireless stages show a worthwhile gain in video quality from using three or more connections over a single connection but with start-up delay due to the need to avoid possible buffer underflow. More connections will be necessary to preserve sufficient wireless link utilization if the path is lengthened to reach an end device that is also mobile.

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“…In [19], multiple connections over an IEEE 802.16e link were used to send different layers of a scalable video stream. Unfortunately, the scheme was only tested for two layers and video quality evaluation does not appear to have accounted for lost packets.…”

Section: B Tfrc Over Wirelessmentioning

confidence: 99%

Applying Multi-Connection Video Streaming to WiMAX Broadband Wireless

Al-Majeed¹,

Fleury

2010

JCM

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Abstract-Streaming a single video over multiple TCPFriendly Rate Control (TFRC) connections is a way of separately coping with both wireless channel losses and traffic congestion, without the need for cross-layer intervention or retransmission delay at the data-link layer. At the same time, the wireless channel is properly utilized, as throughput improves with an increasing number of connections. Nevertheless over IEEE 802.16e (mobile WiMAX), tuning is needed to select the number of connections and the Time Division Duplex (TDD) frame size. The paper assesses the impact on video quality of packet drops due both to channel loss over a WiMAX access link and router buffer overflow across an all-IP network, consisting of broadband wireless access and core network. The paper also considers end-to-end delay and start-up delay when employing several connections. Results show that provided the TDD frame size is selected appropriately then using multiple connections preserves video quality and improves wireless channel utilization, with a minimal impact on end-to-end delay. As a trade-off, there is an increase in start-up delay arising from the need to avoid possible buffer underflow.

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Scalable Video Streaming over Mobile WiMAX

Cited by 36 publications

References 1 publication

Channel adaptive video stream switching for broadband wireless links

Channel adaptive video stream switching for broadband wireless links

DCCP video streaming over multiple connections in the wireless internet

Applying Multi-Connection Video Streaming to WiMAX Broadband Wireless

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