Impact of bit error on video transmission over wireless networks and error resiliency

Purandare, R. G.; Kshirsagar, S. P.; Koli, S. M.; Gohokar, V. V.

doi:10.1109/iciip.2011.6108871

Cited by 5 publications

(3 citation statements)

References 14 publications

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“…No communication is done by the receiver with transmitter after decoding, hence FEC require simplex link. FEC schemes are further classified as media independent FEC and congestion control [2,7,14,17].…”

Section: Fecmentioning

confidence: 99%

“…These multimedia services are now available on the smart handheld devices of user and demand the wireless link to be robust to error [1]. For the real time multimedia signal transmission in wireless medium, available radio resources are limited and hence there is a need of development of adaptable radio interfaces to adapt the variations in the wireless link, in order to optimize network performance [2,3] which will result in good end-to-end wireless network performance.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Network Throughput of Wireless Network for Digital Video Transmission

S.M¹,

R.G²,

S.P³

et al. 2013

IJWMN

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Digital video transmission using wireless technology is an important functionality in multimedia communication. Such wireless transmission considers various parameters of channel like reliability, quality of service (QoS), transmission rate, transmission delay etc. User datagram protocol (UDP) is a fast transmission protocol used by most of the real-time applications as it is suitable for delay sensitive applications like video and audio transmission. UDP does not provide flow control or error recovery and does not require connection management. Since more applications with real-time constraints are introduced day by day, both over wired and over wireless, some improvements should be made in order to obtain better end to end performance. This paper surveys the literature on real time communication over wireless and suggests an intermediate solution providing more reliability in transmission using adaptive error control mechanism. The idea used is to inject an adaptive amount of redundant packets (RPs) in every sent block (or datagram) in order to achieve a desired recovery rate at the receiver without using any retransmission mechanism. The technique used is called adaptive forward error control (AFEC) and is implemented at physical layer. The network simulator NS-2 is used to evaluate AFEC and the simulation results indicate that the suggested methods can guarantee enhanced network throughput for video transmission in the high packet loss wireless network.

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Section: Fecmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Enhanced Network Throughput of Wireless Network for Digital Video Transmission

S.M¹,

R.G²,

S.P³

et al. 2013

IJWMN

View full text Add to dashboard Cite

show abstract

“…More recent works analyzed the concealment issues also for recent standards such as H.264/AVC, as done in [23] for the case of packet losses or for the case of bit errors as in [21,10]. However, their analysis is limited since they do not consider the transmission optimization part, therefore the impact that a wrong assumption about the concealment technique may have on the optimization process remains unclear.…”

Section: Introductionmentioning

confidence: 99%

On the effects of sender-receiver concealment mismatch on multimedia communication optimization

Masala

Vito

Martin

2013

Multimed Tools Appl

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A large number of performance optimization algorithms for multimedia communications, including rate-distortion optimized schemes, rely on knowing the decoder behavior in case of data loss, i.e., the decoder-side error concealment technique. However, for the specific case of video coding, standards do not specify it, thus different decoders may -and typically do -use different concealment techniques. This work investigates the impact of assuming, in the transmission optimization phase, a concealment algorithm different from the one that is actually used by the decoder, in order to determine which are the best assumptions to use at the transmitter. Firstly, we investigate the typical performance provided by ten concealment techniques belonging to three widely used algorithmic families (spatial, temporal and mixed). Then, we assess the impact that an incorrect concealment assumption causes, in terms of both packet transmission policy changes and video quality degradation, using a simple rate-distortion transmission optimization technique that targets a generic two QoS-level network. Simulation results over several standard video sequences show that the performance impact of incorrectly assuming the decoder-side concealment technique may be significant but it is limited if the two techniques belong to the same algorithmic family. Moreover, the impact on performance caused by incorrect assumptions is strongly mitigated if the

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2016

Multimedia Networks

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Impact of bit error on video transmission over wireless networks and error resiliency

Cited by 5 publications

References 14 publications

Enhanced Network Throughput of Wireless Network for Digital Video Transmission

Enhanced Network Throughput of Wireless Network for Digital Video Transmission

On the effects of sender-receiver concealment mismatch on multimedia communication optimization

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